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	<title>Notas de aplicação de testes mecânicos de alta temperatura - NANOVEA: Profilômetros, tribômetros, nanoindentadores e testadores de arranhões avançados para testes de materiais</title>
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	<link>https://nanovea.com/pt/categoria/notas-de-aplicacao/testes-mecanicos/testes-mecanicos-em-alta-temperatura/</link>
	<description>Instrumentos de metrologia para pesquisa de materiais e controle de qualidade</description>
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	<title>Notas de aplicação de testes mecânicos de alta temperatura - NANOVEA: Profilômetros, tribômetros, nanoindentadores e testadores de arranhões avançados para testes de materiais</title>
	<link>https://nanovea.com/pt/categoria/notas-de-aplicacao/testes-mecanicos/testes-mecanicos-em-alta-temperatura/</link>
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		<title>High Temperature Brinell Hardness Testing</title>
		<link>https://nanovea.com/pt/high-temperature-hardness-testing-of-steel/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=high-temperature-hardness-testing-of-steel</link>
					<comments>https://nanovea.com/pt/high-temperature-hardness-testing-of-steel/#respond</comments>
		
		<dc:creator><![CDATA[Andrew Shore]]></dc:creator>
		<pubDate>Thu, 20 Aug 2026 23:22:06 +0000</pubDate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[High Temperature Mechanical Testing]]></category>
		<category><![CDATA[High Temperature Tribology]]></category>
		<category><![CDATA[Indentation | Hardness and Elastic]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=26582</guid>

					<description><![CDATA[<p>Application Note &#124; High Temperature Mechanical Testing High Temperature Hardness Testing of Steel Using Brinell Indentation Mapping Steel Hardness Loss from Room Temperature to 925°C with NANOVEA T2000 Tribometer Request High Temperature Hardness Testing Speak with an Application Engineer Research &#38; Experimental Testing Frank Liu Visual Design &#38; Editorial Andrew Shore Introduction High temperature hardness [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/high-temperature-hardness-testing-of-steel/">High Temperature Brinell Hardness Testing</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
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									<p>Application Note | High Temperature Mechanical Testing</p>								</div>
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					<h1 class="elementor-heading-title elementor-size-default">High Temperature Hardness Testing of Steel Using Brinell Indentation</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Mapping Steel Hardness Loss from Room Temperature to 925°C with NANOVEA T2000 Tribometer</h2>				</div>
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															<img fetchpriority="high" decoding="async" width="1400" height="420" src="https://nanovea.com/wp-content/uploads/2026/08/high-temperature-hardness-testing-steel-brinell.jpg" class="attachment-full size-full wp-image-26554" alt="Material performance testing under extreme temperature conditions for aerospace and defense applications" />															</div>
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					<p class="elementor-heading-title elementor-size-default">Research &amp; Experimental Testing</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">Frank Liu</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">Visual Design &amp; Editorial</p>				</div>
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					<p class="elementor-heading-title elementor-size-default">Andrew Shore</p>				</div>
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		</section>
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					<h2 class="elementor-heading-title elementor-size-default">Introdução</h2>				</div>
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									<p class="isSelectedEnd">High temperature hardness testing provides insight into how the mechanical behavior of metals changes as temperature increases. Materials that exhibit high hardness at room temperature can soften significantly when exposed to elevated temperatures, making temperature-dependent hardness an important consideration when selecting materials for applications such as jet engines, high-temperature processing equipment, and other thermally demanding environments.</p><p>In this study, a steel sample was evaluated using Brinell indentation with the <a href="https://nanovea.com/instruments/t2000/">NANOVEA T2000 Tribometer</a>. Hardness measurements were performed at 25, 200, 400, 600, 800, and 925°C to map the change in steel hardness with temperature. The results show a gradual reduction in hardness through approximately 600°C, followed by a much sharper decline at higher temperatures, resulting in an 84% decrease in hardness between room temperature and 925°C.</p>								</div>
				</div>
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					<h2 class="elementor-heading-title elementor-size-default">Why High Temperature Hardness Testing Matters</h2>				</div>
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									<p class="isSelectedEnd">Hardness is a mechanical property that describes a material’s resistance to localized deformation. Higher hardness generally corresponds to greater resistance to indentation and permanent surface deformation.</p><p class="isSelectedEnd">Temperature can significantly alter this behavior. A material that remains hard at room temperature may soften as temperature increases, changing its mechanical response under elevated-temperature conditions. For materials intended for high-temperature applications, understanding these changes is important when evaluating their mechanical limits.</p><p><a href="https://nanovea.com/high-temperature-mechanical-tester/">High temperature hardness testing</a> makes it possible to measure these changes directly as temperature increases rather than relying only on room-temperature properties. In this study, the steel sample provides a clear example of how hardness can remain relatively stable over part of the temperature range before declining rapidly at higher temperatures.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Objetivo da medição</h2>				</div>
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									<p class="isSelectedEnd">The objective of this study was to evaluate how the Brinell hardness of steel changes as temperature increases from room temperature to 925°C.</p><p>Using a 10 mm tungsten carbide (WC) ball, a load of 1000 N (~100 kgf) was applied to the steel sample at 25, 200, 400, 600, 800, and 925°C. The resulting indentations were measured using NANOVEA’s 3D Line Sensor to determine their diameter for <a href="https://nanovea.com/instrumented-indentation-hardness-elastic-modulus/">Brinell hardness calculation</a>.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Procedimento de teste</h2>				</div>
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									<p class="isSelectedEnd">High temperature Brinell hardness testing was performed with the steel sample mounted inside the NANOVEA T2000 heated chamber. The sample was tested at six temperatures from 25°C to 925°C using a 10 mm tungsten carbide (WC) ball with an applied test force of 1000 N (~100 kgf).</p><p>The test parameters used throughout the study are summarized below.</p>								</div>
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															<img decoding="async" width="1026" height="683" src="https://nanovea.com/wp-content/uploads/2026/08/high-temperature-hardness-testing-t2000-heated-chamber.jpg" class="attachment-full size-full wp-image-26564" alt="Steel sample mounted inside the NANOVEA T2000 high temperature chamber for Brinell hardness testing" />															</div>
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									<p>Steel sample mounted in the NANOVEA T2000 high temperature chamber for Brinell hardness testing from 25°C to 925°C.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Parâmetros de teste</h2>				</div>
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									<div class="measurement-table-wrapper">
<table class="measurement-table">
<thead>
<tr>
<th>Test Parameter</th>
<th>High Temperature Brinell Hardness Setup</th>
</tr>
</thead>
<tbody>
<tr>
<td>Temperatura</td>
<td>25, 200, 400, 600, 800, 925°C</td>
</tr>
<tr>
<td>Test force</td>
<td>1000 N (~100 kgf)</td>
</tr>
<tr>
<td>Force-diameter ratio</td>
<td>1</td>
</tr>
<tr>
<td>Ball material</td>
<td>Tungsten carbide (WC)</td>
</tr>
<tr>
<td>Ball diameter</td>
<td>10 mm</td>
</tr>
</tbody>
</table>
</div>								</div>
				</div>
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															<img loading="lazy" decoding="async" width="1200" height="618" src="https://nanovea.com/wp-content/uploads/2026/08/high-temperature-hardness-testing-steel-samples.jpg" class="attachment-full size-full wp-image-26565" alt="Steel samples used for high temperature Brinell hardness testing from 25°C to 925°C" />															</div>
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									<p>Steel samples used in the high temperature Brinell hardness study from room temperature to 925°C.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Resultados e Discussão</h2>				</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-55f91f5 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="55f91f5" data-element_type="section">
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									<p class="isSelectedEnd">Brinell hardness was calculated from the applied force, ball diameter, and measured indentation diameter using the equation below:</p>								</div>
				</div>
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															<img loading="lazy" decoding="async" width="964" height="352" src="https://nanovea.com/wp-content/uploads/2026/08/brinell-hardness-equation.jpg" class="attachment-full size-full wp-image-26567" alt="Brinell hardness equation using applied force, ball diameter, and measured indentation diameter" />															</div>
				</div>
				<div class="elementor-element elementor-element-8401aeb elementor-widget elementor-widget-text-editor" data-id="8401aeb" data-element_type="widget" data-widget_type="text-editor.default">
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									<p class="isSelectedEnd">Where F (kgf) is the applied force expressed in kilogram-force, D is the ball diameter, and d is the measured indentation diameter. Two diameter measurements were taken for each indent and averaged to determine the value of d used in the hardness calculation.</p>								</div>
				</div>
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															<img loading="lazy" decoding="async" width="1045" height="597" src="https://nanovea.com/wp-content/uploads/2026/08/high-temperature-brinell-hardness-load-time-curve.jpg" class="attachment-full size-full wp-image-26568" alt="Load versus time curve showing the 1000 N indentation load used during high temperature Brinell hardness testing of steel" />															</div>
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									<p>Load vs. time profile for the 1000 N Brinell indentations performed during high temperature hardness testing.</p>								</div>
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									<p class="isSelectedEnd">The loading curve shows the applied load profile used during indentation. A consistent 1000 N (~100 kgf) test force was used throughout the temperature series so that the resulting indentation dimensions and calculated hardness values could be compared across each test condition.</p>								</div>
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															<img loading="lazy" decoding="async" width="865" height="872" src="https://nanovea.com/wp-content/uploads/2026/08/high-temperature-brinell-hardness-indentation-800c.jpg" class="attachment-full size-full wp-image-26569" alt="Brinell indentation on steel measured at 800°C with diameters of 1.807 mm and 1.830 mm" />															</div>
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<table class="measurement-table">
<thead>
<tr>
<th>Distância</th>
<th>Unit</th>
<th>A</th>
<th>B</th>
</tr>
</thead>
<tbody>
<tr>
<td>HDist</td>
<td>mm</td>
<td>1.807</td>
<td>1.830</td>
</tr>
</tbody>
</table>
</div>								</div>
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									<p>Brinell indentation measured at 800°C. Two diameter measurements of 1.807 mm and 1.830 mm were averaged to determine the indentation diameter used for hardness calculation.</p>								</div>
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									<p class="isSelectedEnd">At 800°C, the measured indentation diameters were 1.807 mm and 1.830 mm, producing an average diameter of approximately 1.819 mm. The indentation diameter increased substantially at the higher test temperatures as the steel became softer under the same applied load.</p><p>The measured indentation diameters were then used to calculate Brinell hardness at each temperature. The results show a relatively gradual decrease from 96.12 HBW at 25°C to 79.69 HBW at 600°C, followed by a much sharper decrease to 38.18 HBW at 800°C and 15.40 HBW at 925°C.</p>								</div>
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		</section>
				<section class="elementor-section elementor-top-section elementor-element elementor-element-0284660 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="0284660" data-element_type="section">
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					<h4 class="elementor-heading-title elementor-size-default">Brinell Hardness Results</h4>				</div>
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									<div class="measurement-table-wrapper">
<table class="measurement-table pore-statistics-table">
<tbody>
<tr class="section-header">
<td colspan="5">High Temperature Brinell Hardness Results</td>
</tr>
<tr>
<th>Temperature (°C)</th>
<th>Diameter 1 (mm)</th>
<th>Diameter 2 (mm)</th>
<th>Average Diameter (mm)</th>
<th>HBW (10/100)</th>
</tr>
<tr>
<td>25</td>
<td>1.153</td>
<td>1.145</td>
<td>1.149</td>
<td>96.12</td>
</tr>
<tr>
<td>200</td>
<td>1.150</td>
<td>1.201</td>
<td>1.176</td>
<td>91.82</td>
</tr>
<tr>
<td>400</td>
<td>1.165</td>
<td>1.261</td>
<td>1.213</td>
<td>86.21</td>
</tr>
<tr>
<td>600</td>
<td>1.265</td>
<td>1.258</td>
<td>1.262</td>
<td>79.69</td>
</tr>
<tr>
<td>800</td>
<td>1.807</td>
<td>1.830</td>
<td>1.819</td>
<td>38.18</td>
</tr>
<tr>
<td>925</td>
<td>2.858</td>
<td>2.833</td>
<td>2.846</td>
<td>15.40</td>
</tr>
</tbody>
</table>
</div>								</div>
				</div>
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															<img loading="lazy" decoding="async" width="1200" height="672" src="https://nanovea.com/wp-content/uploads/2026/08/high-temperature-hardness-testing-brinell-hardness-vs-temperature-graph.jpg" class="attachment-full size-full wp-image-26570" alt="Graph showing Brinell hardness of steel decreasing from 96.12 HBW at 25°C to 15.40 HBW at 925°C" />															</div>
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									<p class="isSelectedEnd">The temperature-dependent trend is clear. Steel hardness decreased moderately between room temperature and 600°C, then declined rapidly at higher temperatures. Between 25°C and 925°C, the measured Brinell hardness decreased from 96.12 to 15.40 HBW, representing an overall hardness loss of approximately 84%.</p><p>These results demonstrate why hardness measured at room temperature alone may not fully represent material behavior in high-temperature applications. For this steel sample, the most substantial loss in hardness occurred above approximately 600°C.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-683f81e elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="683f81e" data-element_type="section">
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					<h2 class="elementor-heading-title elementor-size-default">Conclusão</h2>				</div>
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									<p class="isSelectedEnd">High temperature hardness testing revealed a strong temperature-dependent change in the Brinell hardness of the steel sample. Hardness decreased gradually as temperature increased from 25°C to 600°C, then declined much more sharply at higher temperatures. By 925°C, the measured hardness had fallen from 96.12 HBW to 15.40 HBW, representing an overall decrease of approximately 84%.</p><p class="isSelectedEnd">The study demonstrates the ability of the NANOVEA T2000 Tribometer to perform Brinell hardness measurements under elevated-temperature conditions. Using a 1000 N (~100 kgf) test force, the steel sample was evaluated from 25°C to 925°C, allowing its change in hardness to be measured directly across the tested temperature range.</p><p>The results also highlight the importance of selecting an appropriate force-diameter ratio across a wide temperature range. Because of the large difference in hardness between room temperature and high temperature, the study recommends a force-diameter ratio of 5 or 10 at lower temperatures, while a ratio of 1 is suitable above 900°C.</p>								</div>
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				<section class="elementor-section elementor-top-section elementor-element elementor-element-a2dee8e elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="a2dee8e" data-element_type="section" data-settings="{&quot;background_background&quot;:&quot;classic&quot;}">
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					<h2 class="elementor-heading-title elementor-size-default">Frequently Asked Questions About High Temperature Hardness Testing</h2>				</div>
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					<h3 class="elementor-heading-title elementor-size-default">What is high temperature hardness testing used for?</h3>				</div>
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									<p data-start="168" data-end="494">High temperature hardness testing evaluates how a material’s resistance to indentation changes as temperature increases. It is useful for materials intended for thermally demanding applications where room-temperature hardness may not represent mechanical behavior at operating temperature.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Can Brinell hardness be measured at elevated temperatures?</h3>				</div>
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									<p data-start="658" data-end="746">Yes. Elevated-temperature Brinell hardness testing applies a controlled force using a ball of known diameter while the specimen is heated to the required test temperature. In this study, steel was tested from 25°C to 925°C using a 10 mm tungsten carbide ball and a 1000 N test force.</p>								</div>
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					<h3 class="elementor-heading-title elementor-size-default">Why measure hardness while the material is hot?</h3>				</div>
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				<div class="elementor-element elementor-element-e60fcb6 elementor-widget elementor-widget-text-editor" data-id="e60fcb6" data-element_type="widget" data-widget_type="text-editor.default">
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									<p data-start="168" data-end="494">Testing at temperature measures hardness under the thermal condition of interest rather than only after the specimen returns to room temperature. This makes it possible to directly characterize temperature-dependent softening and identify changes that may not be represented by room-temperature hardness values.</p>								</div>
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				<div class="elementor-element elementor-element-2ae518f elementor-widget elementor-widget-heading" data-id="2ae518f" data-element_type="widget" data-widget_type="heading.default">
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					<h3 class="elementor-heading-title elementor-size-default">What equipment is used for high temperature hardness testing?</h3>				</div>
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				<div class="elementor-element elementor-element-1d77659 elementor-widget elementor-widget-text-editor" data-id="1d77659" data-element_type="widget" data-widget_type="text-editor.default">
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									<p data-start="168" data-end="494">High temperature hardness testing requires controlled specimen heating, precise mechanical loading and measurement of the resulting indentation. The NANOVEA T2000 can integrate high-temperature environmental control with mechanical testing for evaluating material behavior under elevated-temperature conditions.</p>								</div>
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				<div class="elementor-element elementor-element-3d372dd elementor-widget elementor-widget-heading" data-id="3d372dd" data-element_type="widget" data-widget_type="heading.default">
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					<h3 class="elementor-heading-title elementor-size-default">Can high temperature hardness testing be used for aerospace materials?</h3>				</div>
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				<div class="elementor-element elementor-element-b1dd455 elementor-widget elementor-widget-text-editor" data-id="b1dd455" data-element_type="widget" data-widget_type="text-editor.default">
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									<p data-start="168" data-end="494">Yes. Elevated-temperature hardness measurements are relevant when evaluating materials intended for thermally demanding aerospace environments, including jet-engine and other high-temperature components. Testing helps characterize how hardness changes as exposure temperature increases.</p>								</div>
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				<div class="elementor-element elementor-element-5cbc604 elementor-widget elementor-widget-heading" data-id="5cbc604" data-element_type="widget" data-widget_type="heading.default">
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					<h3 class="elementor-heading-title elementor-size-default">Can NANOVEA perform high temperature hardness testing as a laboratory service?</h3>				</div>
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									<p data-start="168" data-end="494">NANOVEA provides materials testing services using its mechanical testing and tribology platforms. Application requirements, temperature range, load, specimen geometry and measurement method can be reviewed with a NANOVEA applications engineer to determine an appropriate high-temperature testing approach.</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">Need High Temperature Hardness Testing for Your Material?</h2>				</div>
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				</div><p>The post <a href="https://nanovea.com/pt/high-temperature-hardness-testing-of-steel/">High Temperature Brinell Hardness Testing</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Dureza de Arranhão a Alta Temperatura usando um Tribômetro</title>
		<link>https://nanovea.com/pt/dureza-ao-risco-a-alta-temperatura-utilizando-um-tribometro/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=high-temperature-scratch-hardness-using-a-tribometer</link>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubDate>Qui, 14 de julho de 2022 16:56:16 +0000</pubDate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[High Temperature Mechanical Testing]]></category>
		<category><![CDATA[High Temperature Tribology]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Mechanical Testing]]></category>
		<category><![CDATA[Scratch Testing | Scratch Hardness]]></category>
		<category><![CDATA[Scratch Testing Tribology]]></category>
		<category><![CDATA[Tribology Testing]]></category>
		<guid ispermalink="false">https://nanovea.com/?p=21189</guid>

					<description><![CDATA[<p>HIGH TEMPERATURE SCRATCH HARDNESS USING A TRIBOMETER Prepared by DUANJIE, PhD INTRODUCTION Hardness measures the resistance of materials to permanent or plastic deformation. Originally developed by a German mineralogist Friedrich Mohs in 1820, scratch hardness test determines the hardness of a material to scratches and abrasion due to friction from a sharp object1. The Mohs&#8217; [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/dureza-ao-risco-a-alta-temperatura-utilizando-um-tribometro/">High Temperature Scratch Hardness using a Tribometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<div data-elementor-type="wp-post" data-elementor-id="21189" class="elementor elementor-21189" data-elementor-post-type="post">
						<section class="elementor-section elementor-top-section elementor-element elementor-element-7ec3d48 elementor-section-boxed elementor-section-height-default elementor-section-height-default" data-id="7ec3d48" data-element_type="section">
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					<h1 class="elementor-heading-title elementor-size-default">DUREZA DE ARRANHÕES A ALTAS TEMPERATURAS</h1>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">USANDO UM TRIBÔMETRO</h2>				</div>
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															<img loading="lazy" decoding="async" width="768" height="217" src="https://nanovea.com/wp-content/uploads/2022/07/High-Temperature-Tribology.jpg" class="attachment-medium_large size-medium_large wp-image-21179" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">Preparado por</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">DUANJIE, PhD</h2>				</div>
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					<h2 class="elementor-heading-title elementor-size-default">INTRODUÇÃO</h2>				</div>
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									<p>A dureza mede a resistência dos materiais à deformação permanente ou plástica. Desenvolvido originalmente por um mineralogista alemão Friedrich Mohs em 1820, o teste de dureza de arranhões determina a dureza de um material a arranhões e abrasão devido ao atrito de um objeto cortante.<sup>1</sup>. A escala de Mohs é um índice comparativo e não uma escala linear, portanto uma medição de dureza de arranhões mais precisa e qualitativa foi desenvolvida como descrito na norma ASTM G171-03.<sup>2</sup>. Ele mede a largura média do risco criado por um estilete de diamante e calcula o número de dureza do risco (HSP).</p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">IMPORTÂNCIA DA MEDIÇÃO DA DUREZA DOS ARRANHÕES EM ALTAS TEMPERATURAS</h2>				</div>
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									<p>Os materiais são selecionados com base nas exigências do serviço. Para aplicações que envolvem mudanças significativas de temperatura e gradientes térmicos, é fundamental investigar as propriedades mecânicas dos materiais a altas temperaturas para estar plenamente ciente dos limites mecânicos. Os materiais, especialmente os polímeros, geralmente amolecem a altas temperaturas. Muitas falhas mecânicas são causadas pela deformação por fluência e fadiga térmica ocorrendo apenas a temperaturas elevadas. Portanto, uma técnica confiável para medir a dureza a altas temperaturas é necessária para garantir uma seleção adequada dos materiais para aplicações a altas temperaturas.</p>								</div>
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									<p style="text-align: left;">OBJETIVO DA MEDIÇÃO</p>								</div>
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									<p>Neste estudo, o Tribômetro NANOVEA T50 mede a dureza ao risco de uma amostra de Teflon em diferentes temperaturas, desde a temperatura ambiente até 300ºC. A capacidade de realizar medições de dureza a riscos em alta temperatura torna o NANOVEA <a href="https://nanovea.com/tribometers/">Tribômetro </a>um sistema versátil para avaliações tribológicas e mecânicas de materiais para aplicações em altas temperaturas.</p>								</div>
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									<p style="text-align: left;">NANOVEA</p>								</div>
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									<p style="text-align: left;">T50</p>								</div>
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									<span class="elementor-button-text">SAIBA MAIS</span>
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																<a href="https://nanovea.com/instruments/t50">
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					<h2 class="elementor-heading-title elementor-size-default">CONDIÇÕES DE TESTE</h2>				</div>
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									<p>O Tribômetro NANOVEA T50 Free Weight Standard foi usado para realizar os testes de dureza de arranhões em uma amostra de Teflon a temperaturas que variam da temperatura ambiente (RT) a 300°C. O teflon tem um ponto de derretimento de 326,8°C. Foi utilizada uma ponta diamantada cônica de ângulo de ápice de 120° com raio de ponta de 200 µm. A amostra de teflon foi fixada no estágio rotativo da amostra com uma distância de 10 mm até o centro do estágio. A amostra foi aquecida por um forno e testada a temperaturas de RT, 50°C, 100°C, 150°C, 200°C, 250°C e 300°C.</p>								</div>
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									<p style="text-align: center;">PARÂMETROS DE TESTE</p>								</div>
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									<p>da medição da dureza de arranhões a alta temperatura</p>								</div>
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<td style="width: 50%; text-align: left;"><em><strong style="color: #1b96cf;">FORÇA NORMAL</strong></em></td>
<td style="width: 50%; text-align: right;"><em><strong>2 N</strong></em></td>
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<td style="width: 50%; text-align: left;"><em><strong style="color: #1b96cf;">VELOCIDADE DE DESLIZAMENTO</strong></em></td>
<td style="width: 50%; text-align: right;"><em><strong>1 mm/s</strong></em></td>
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<td style="width: 50%; text-align: left;"><em><strong style="color: #1b96cf;">DISTÂNCIA DE DESLIZAMENTO</strong></em></td>
<td style="width: 50%; text-align: right;"><em><strong>8mm por temperatura</strong></em></td>
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<td style="width: 50%; text-align: left;"><em><strong style="color: #1b96cf;">ATMOSPHERE</strong></em></td>
<td style="width: 50%; text-align: right;"><em><strong>Ar</strong></em></td>
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<td style="width: 50%; text-align: left;"><em><strong style="color: #1b96cf;">TEMPERATURA</strong></em></td>
<td style="width: 50%; text-align: right;"><em><strong>RT, 50°C, 100°C, 150°C, 200°C, 250°C, 300°C.</strong></em></td>
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															<img loading="lazy" decoding="async" width="758" height="514" src="https://nanovea.com/wp-content/uploads/2022/07/High-Temperature-Scratch-Hardness.jpg" class="attachment-large size-large wp-image-21178" alt="" />															</div>
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					<h2 class="elementor-heading-title elementor-size-default">RESULTADOS &amp; DISCUSSÃO</h2>				</div>
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									<p style="text-align: left;">Os perfis de arranhões da amostra de Teflon em diferentes temperaturas são mostrados no FIGURA 1 para comparar a dureza do arranhão em diferentes temperaturas elevadas. O acúmulo de material nas bordas da trilha de arranhão se forma à medida que a ponta se desloca a uma velocidade constante viaja com uma carga constante de 2 N e arado na amostra de Teflon, empurrando e deformando o material no arranhão para o lado.</p><p>Os rastros de arranhões foram examinados sob o microscópio ótico, como mostrado na FIGURA 2. As larguras dos arranhões medidas e os números calculados de dureza de arranhão (HSP) são resumidos e comparados na FIGURA 3. A largura do arranhão medida pelo microscópio está de acordo com a medida usando o Perfilômetro  NANOVEA - a amostra de Teflon exibe uma largura de arranhão maior a temperaturas mais altas. Sua largura de arranhão aumenta de 281 para 539 µm à medida que a temperatura se eleva de RT para 300oC, resultando na diminuição do HSP de 65 para 18 MPa.</p><p>A dureza dos arranhões em temperaturas elevadas pode ser medida com alta precisão e repetibilidade usando o Tribômetro NANOVEA T50. Ele fornece uma solução alternativa a partir de outras medições de dureza e faz do NANOVEA Tribometer um sistema mais completo para avaliações tribo-mecânicas abrangentes em alta temperatura.</p>								</div>
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															<img loading="lazy" decoding="async" width="980" height="783" src="https://nanovea.com/wp-content/uploads/2022/07/Scratch-Hardness-High-Temperature.jpg" class="attachment-large size-large wp-image-21182" alt="" />															</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 1:</span><span class="fontstyle0" style="color: #1b96cf;"><span style="color: #000000;"><span class="fontstyle0"> </span>Perfis de arranhões após os testes de dureza de arranhão em diferentes temperaturas.</span></p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 2:</span><span class="fontstyle0" style="color: #000000;"> Arranhões sob o microscópio após as medições em diferentes temperaturas.</span></p>								</div>
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									<p style="text-align: center;"><span class="fontstyle0" style="color: #1b96cf;">FIGURA 3:</span><span class="fontstyle0" style="color: #000000;"> Evolução da largura da pista de Arranhões e da dureza da Arranhão em relação à temperatura.</span></p>								</div>
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					<h2 class="elementor-heading-title elementor-size-default">CONCLUSÃO</h2>				</div>
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									<p>Neste estudo, mostramos como o Tribômetro NANOVEA mede a dureza dos arranhões a temperaturas elevadas em conformidade com a norma ASTM G171-03. O teste de dureza de arranhões com carga constante fornece uma solução alternativa simples para comparar a dureza dos materiais usando o tribômetro. A capacidade de realizar medições de dureza de arranhões a temperaturas elevadas faz do Tribômetro NANOVEA uma ferramenta ideal para avaliar as propriedades tribo-mecânicas de materiais a altas temperaturas.</p><p>O Tribômetro NANOVEA também oferece testes de desgaste e atrito precisos e repetíveis usando os modos rotativo e linear conforme ISO e ASTM, com módulos opcionais de desgaste a alta temperatura, lubrificação e tribo-corrosão disponíveis em um sistema pré-integrado. O Perfilômetro 3D sem contato opcional está disponível para imagens 3D de alta resolução de faixas de desgaste, além de outras medições de superfície, como rugosidade.</p>								</div>
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									<p><span class="fontstyle0">1 </span><span class="fontstyle2">Wredenberg, Fredrik; PL Larsson (2009). "Teste de arranhão de metais e polímeros: Experimentos e numéricos". Desgaste 266 (1-2): 76<br></span><span class="fontstyle0">2 </span><span class="fontstyle2">ASTM G171-03 (2009), "Standard Test Method for Scratch Hardness of Materials Using a Diamond Stylus</span> </p>								</div>
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				</div><p>The post <a href="https://nanovea.com/pt/dureza-ao-risco-a-alta-temperatura-utilizando-um-tribometro/">High Temperature Scratch Hardness using a Tribometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Transição Precisa de Vidro Localizado com Nanoindentação DMA</title>
		<link>https://nanovea.com/pt/precise-localizado-glass-transicao-com-nanoindentacao-dma/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=precise-localized-glass-transition-with-nanoindentation-dma</link>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubDate>Ter, 14 de maio de 2019 16:14:41 +0000</pubDate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[High Temperature Mechanical Testing]]></category>
		<category><![CDATA[Indentation | Hardness and Elastic]]></category>
		<category><![CDATA[Indentation | Loss and Storage]]></category>
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					<description><![CDATA[<p>Transição Precisa de Vidro Localizado com Nanoindentação DMA Saiba mais</p>
<p>The post <a href="https://nanovea.com/pt/precise-localizado-glass-transicao-com-nanoindentacao-dma/">Precise Localized Glass Transition with Nanoindentation DMA</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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									Transição Precisa de Vidro Localizado com Nanoindentação DMA
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									Imagine um cenário em que uma amostra a granel é aquecida uniformemente a uma taxa constante. Quando um material a granel aquece e se aproxima de seu ponto de fusão, ele começará a perder sua rigidez. Se as indentações periódicas (testes de dureza) forem realizadas com a mesma força alvo, a profundidade de cada indentação deve aumentar constantemente, uma vez que a amostra está se tornando mais macia (ver figura 1). Isto continua até que a amostra comece a derreter. Neste ponto, será observado um grande aumento na profundidade por travessão. Usando este conceito, a mudança de fase em um material pode ser observada utilizando oscilações dinâmicas com uma amplitude de força fixa e medindo seu deslocamento, ou seja, Análise Mecânica Dinâmica (DMA).

&nbsp;

<a href="http://nanovea.com/App-Notes/Precise-localized-glass-transition-with-nanoindentation-dma.pdf"><strong>Leia sobre a Transição Precisa de Vidro Localizado!</strong></a>

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		<title>ASTM D7187 Efeito da temperatura usando Nanoscratching</title>
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		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubDate>Thu, 29 Jun 2017 16:04:10 +0000</pubDate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[High Temperature Mechanical Testing]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Mechanical Testing]]></category>
		<category><![CDATA[Scratch Testing | Cohesive Failure]]></category>
		<category><![CDATA[ASTM D7187]]></category>
		<category><![CDATA[mar resistance]]></category>
		<category><![CDATA[nanoscratching]]></category>
		<category><![CDATA[Scratch Resistance]]></category>
		<guid ispermalink="false">http://nanovea.com/?p=2877</guid>

					<description><![CDATA[<p>ASTM D7187, the resistance of the paint to scratch and mar plays a vital role in its end use. Automotive paint susceptible to scratches makes it difficult and costly to maintain and repair. Different coating architectures of the primer, basecoat, and clearcoat have been developed to achieve the best scratch/mar resistance. Nanoscratch testing has been [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/astm-d7187-nanoscratching/">ASTM D7187 Temperature Effect Using Nanoscratching</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>ASTM D7187, a resistência da tinta a arranhões e mares desempenha um papel vital em seu uso final. A pintura automotiva suscetível a arranhões torna difícil e dispendiosa a manutenção e o reparo. Diferentes arquiteturas de revestimento do primer, camada de base e camada transparente foram desenvolvidas para obter a melhor resistência a riscos/mar. <a href="https://nanovea.com/nano-scratch-tester/">Teste de Nanoscratch</a> foi desenvolvido como um método de teste padrão para medir os aspectos mecanicistas do comportamento de arranhões/mar de revestimentos de pintura, conforme descrito na ASTM D7187<a href="#_edn1" name="_ednref1"></a>. Diferentes mecanismos elementares de deformação, ou seja, deformação elástica, deformação plástica e fratura, ocorrem com diferentes cargas durante o teste de arranhão. Ele fornece uma avaliação quantitativa da resistência plástica e da resistência à fratura dos revestimentos de pintura.</p>
<p><a href="https://nanovea.com/App-Notes/astm-d7187-temperature.pdf">ASTM D7187 Efeito da temperatura usando Nanoscratching</a></p><p>The post <a href="https://nanovea.com/pt/astm-d7187-nanoscratching/">ASTM D7187 Temperature Effect Using Nanoscratching</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Propriedades mecânicas do teflon a alta temperatura</title>
		<link>https://nanovea.com/pt/teflon-propriedades-mecanico-mecanicas-alta-temperatura/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=teflon-mechanical-properties-high-temperature</link>
					<comments>https://nanovea.com/pt/teflon-propriedades-mecanico-mecanicas-alta-temperatura/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubDate>Wed, 27 Jul 2016 20:06:33 +0000</pubDate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[High Temperature Mechanical Testing]]></category>
		<category><![CDATA[Teflon Mechanical Properties]]></category>
		<guid ispermalink="false">http://nanovea.com/?p=2440</guid>

					<description><![CDATA[<p>At elevated temperatures, heat changes teflon mechanical properties such as the hardness and viscoelasticity, which may result in mechanical failures. A reliable measurement of the thermo-mechanical behavior of polymeric materials is in need to quantitatively evaluate the candidate materials for high temperature applications. The Nano module of the Nanovea Mechanical Tester studies the Hardness, Young’s [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/teflon-propriedades-mecanico-mecanicas-alta-temperatura/">Teflon Mechanical Properties at High Temperature</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Em temperaturas elevadas, o calor altera as propriedades mecânicas do teflon, como dureza e viscoelasticidade, o que pode resultar em falhas mecânicas. É necessária uma medição confiável do comportamento termomecânico de materiais poliméricos para avaliar quantitativamente os materiais candidatos para aplicações em altas temperaturas. O <a href="https://nanovea.com/nano-indentation-tester/">Nanomódulo</a> da Nanovea <a href="https://nanovea.com/mechanical-testers/">Testador Mecânico</a> estuda a Dureza, o Módulo de Young e a Fluência aplicando a carga com um piezo de alta precisão e medindo a evolução da força e do deslocamento. Um forno avançado cria uma temperatura uniforme ao redor da ponta de indentação e da superfície da amostra durante todo o teste de nanoindentação, de modo a minimizar o efeito da deriva térmica.</p>
<p><a href="https://nanovea.com/App-Notes/temperature-nanoindentation.pdf">Propriedades mecânicas do teflon a alta temperatura utilizando a nanoindentação</a></p><p>The post <a href="https://nanovea.com/pt/teflon-propriedades-mecanico-mecanicas-alta-temperatura/">Teflon Mechanical Properties at High Temperature</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Análise Termomecânica de Solda usando Nanoindentação</title>
		<link>https://nanovea.com/pt/analise-termomecanica-de-solda-usando-nanoindentacao/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=thermomechanical-analysis-of-solder-using-nanoindentation</link>
					<comments>https://nanovea.com/pt/analise-termomecanica-de-solda-usando-nanoindentacao/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubDate>Tue, 24 Nov 2015 15:44:44 +0000</pubDate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[High Temperature Mechanical Testing]]></category>
		<category><![CDATA[Mechanical Properties]]></category>
		<category><![CDATA[nanoindentation]]></category>
		<category><![CDATA[thermomechanical analysis]]></category>
		<guid ispermalink="false">http://nanovea.com/?p=2143</guid>

					<description><![CDATA[<p>Solder joints are subjected to thermal and/or external stress when the temperature exceeds 0.6 Tm where Tm is the melting point of the material in Kelvin. The creep behavior of solders at elevated temperatures can directly influence the reliability of solder interconnections.  As a result, a reliable and quantitative thermomechanical analysis of the solder at [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/analise-termomecanica-de-solda-usando-nanoindentacao/">Thermomechanical Analysis of Solder Using Nanoindentation</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>As juntas de solda são submetidas a tensões térmicas e/ou externas quando a temperatura excede 0,6 <em>T</em><sub>m</sub> onde <em>T</em><sub>m</sub> é o ponto de derretimento do material em Kelvin. O comportamento rastejante das soldas a temperaturas elevadas pode influenciar diretamente a confiabilidade das interconexões de solda.<a href="#_edn1" name="_ednref1">. </a> Como resultado, é necessária uma análise termomecânica confiável e quantitativa da solda em diferentes temperaturas. O <a href="https://nanovea.com/nano-indentation-tester/">Nanomódulo</a> da Nanovea <a href="https://nanovea.com/mechanical-testers/">Testador Mecânico</a> aplica a carga por um piezoelétrico de alta precisão e mede diretamente a evolução da força e do deslocamento. O forno de aquecimento avançado proporciona uma temperatura uniforme na ponta e na superfície da amostra, o que garante a precisão da medição e minimiza a influência do desvio térmico.</p>
<p><a href="https://nanovea.com/wp-content/themes/wp-nanovea/Application%20Notes/thermomechanical-analysis.pdf" target="_blank" rel="noopener noreferrer">Análise Termomecânica de Solda usando Nanoindentação</a></p>
<p>&nbsp;</p><p>The post <a href="https://nanovea.com/pt/analise-termomecanica-de-solda-usando-nanoindentacao/">Thermomechanical Analysis of Solder Using Nanoindentation</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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		<title>Dureza de Arranhão a Alta Temperatura usando Tribômetro</title>
		<link>https://nanovea.com/pt/dureza-de-arranhao-de-alta-temperatura-usando-tribometro/?utm_source=rss&#038;utm_medium=rss&#038;utm_campaign=high-temperature-scratch-hardness-using-tribometer</link>
					<comments>https://nanovea.com/pt/dureza-de-arranhao-de-alta-temperatura-usando-tribometro/#respond</comments>
		
		<dc:creator><![CDATA[nanovea]]></dc:creator>
		<pubDate>Ter, 24 de novembro de 2015 15:34:17 +0000</pubDate>
				<category><![CDATA[Application Notes]]></category>
		<category><![CDATA[High Temperature Mechanical Testing]]></category>
		<category><![CDATA[High Temperature Tribology]]></category>
		<category><![CDATA[Laboratory Testing]]></category>
		<category><![CDATA[Mechanical Testing]]></category>
		<category><![CDATA[Scratch Testing | Scratch Hardness]]></category>
		<category><![CDATA[Scratch Testing Tribology]]></category>
		<category><![CDATA[Tribology Testing]]></category>
		<category><![CDATA[high temperature]]></category>
		<category><![CDATA[scratch hardness]]></category>
		<category><![CDATA[tribology]]></category>
		<category><![CDATA[tribometer]]></category>
		<guid ispermalink="false">http://nanovea.com/?p=2139</guid>

					<description><![CDATA[<p>Materials are selected based on the service requirements. For applications involving significant temperature changes and thermal gradients, it is critical to investigate the mechanical properties of materials at high temperatures to be fully aware of the mechanical limits. Materials, especially polymers, usually soften at high temperatures. A lot of mechanical failures are caused by creep deformation [&#8230;]</p>
<p>The post <a href="https://nanovea.com/pt/dureza-de-arranhao-de-alta-temperatura-usando-tribometro/">High Temperature Scratch Hardness Using Tribometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
]]></description>
										<content:encoded><![CDATA[<p>Os materiais são selecionados com base nas exigências do serviço. Para aplicações que envolvem mudanças significativas de temperatura e gradientes térmicos, é fundamental investigar as propriedades mecânicas dos materiais a altas temperaturas para estar plenamente ciente dos limites mecânicos. Os materiais, especialmente os polímeros, geralmente amolecem a altas temperaturas. Muitas falhas mecânicas são causadas pela deformação por fluência e fadiga térmica ocorrendo apenas a temperaturas elevadas. Portanto, uma técnica confiável para medir a dureza de arranhões a altas temperaturas é necessária para garantir uma seleção adequada dos materiais para aplicações a altas temperaturas.</p>
<p><a href="https://nanovea.com/wp-content/themes/wp-nanovea/Application%20Notes/high-temperature-tribology.pdf" target="_blank" rel="noopener noreferrer">Dureza de Arranhão a Alta Temperatura usando Tribômetro</a></p>
<p>&nbsp;</p><p>The post <a href="https://nanovea.com/pt/dureza-de-arranhao-de-alta-temperatura-usando-tribometro/">High Temperature Scratch Hardness Using Tribometer</a> appeared first on <a href="https://nanovea.com/pt">NANOVEA: Advanced Profilometers, Tribometers, Nanoindenters, and Scratch Testers for Materials Testing</a>.</p>
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