{"id":116777,"date":"2022-05-24T01:27:17","date_gmt":"2022-05-24T00:27:17","guid":{"rendered":"https:\/\/material-properties.org\/quest-ce-que-lindice-de-durete-brinell-echelle-brinell-definition\/"},"modified":"2022-05-25T06:18:44","modified_gmt":"2022-05-25T05:18:44","slug":"quest-ce-que-lindice-de-durete-brinell-echelle-brinell-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/quest-ce-que-lindice-de-durete-brinell-echelle-brinell-definition\/","title":{"rendered":"Qu&rsquo;est-ce que l&rsquo;indice de duret\u00e9 Brinell &#8211; \u00c9chelle Brinell &#8211; D\u00e9finition"},"content":{"rendered":"<p><span><div class=\"su-quote su-quote-style-default\"><div class=\"su-quote-inner su-u-clearfix su-u-trim\">Le nombre de duret\u00e9 Brinell (HB) est la charge divis\u00e9e par la surface de l&rsquo;indentation.\u00a0Le diam\u00e8tre de l&#8217;empreinte est mesur\u00e9 avec un microscope \u00e0 \u00e9chelle superpos\u00e9e.<\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span>La duret\u00e9 d&rsquo;indentation mesure la capacit\u00e9 \u00e0 r\u00e9sister \u00e0\u00a0<\/span><strong><span>l&rsquo;indentation de surface<\/span><\/strong><span>\u00a0(d\u00e9formation plastique localis\u00e9e) et la r\u00e9sistance d&rsquo;un \u00e9chantillon \u00e0 la d\u00e9formation du mat\u00e9riau due \u00e0 une charge de compression constante d&rsquo;un objet pointu.\u00a0Les tests de duret\u00e9 par indentation sont principalement utilis\u00e9s dans les domaines de l&rsquo;ing\u00e9nierie et de la m\u00e9tallurgie.\u00a0Les m\u00e9thodes traditionnelles sont bas\u00e9es sur des tests physiques de duret\u00e9 par empreinte bien d\u00e9finis.\u00a0Des p\u00e9n\u00e9trateurs tr\u00e8s durs de g\u00e9om\u00e9tries et de tailles d\u00e9finies sont enfonc\u00e9s en continu dans le mat\u00e9riau sous une force particuli\u00e8re.\u00a0Les param\u00e8tres de d\u00e9formation, tels que la profondeur d&rsquo;indentation dans la m\u00e9thode Rockwell, sont enregistr\u00e9s pour donner des mesures de duret\u00e9.\u00a0Les \u00e9chelles de duret\u00e9 d&rsquo;indentation courantes sont\u00a0<\/span><strong><span>Brinell<\/span><\/strong><span>,\u00a0<\/span><strong><span>Rockwell<\/span><\/strong><span>\u00a0et\u00a0<\/span><strong><span>Vickers<\/span><\/strong><span>.<\/span><\/p>\n<p><span>Voir aussi: <\/span><a href=\"https:\/\/material-properties.org\/what-is-hardness-definition\/\"><span>Duret\u00e9<\/span><\/a><\/p>\n<h2><span>Num\u00e9ro de duret\u00e9 Brinell &#8211; \u00c9chelle Brinell<\/span><\/h2>\n<p><strong><span>Le test de duret\u00e9 Brinell<\/span><\/strong><span>\u00a0est l&rsquo;un des tests de duret\u00e9 par indentation, qui a \u00e9t\u00e9 d\u00e9velopp\u00e9 pour les tests de duret\u00e9.\u00a0Dans les tests Brinell, un\u00a0<\/span><strong><span>p\u00e9n\u00e9trateur sph\u00e9rique<\/span><\/strong><span>\u00a0dur est forc\u00e9 sous une charge sp\u00e9cifique dans la surface du m\u00e9tal \u00e0 tester.\u00a0<\/span><strong><span>Le test typique utilise une bille en acier tremp\u00e9 de<\/span><\/strong><span>\u00a010 mm (0,39 in) de diam\u00e8tre \u00a0\u00a0comme p\u00e9n\u00e9trateur avec une force de 3 000 kgf (29,42 kN; 6 614 lbf).\u00a0La charge est maintenue constante pendant un temps d\u00e9termin\u00e9 (entre 10 et 30 s).\u00a0Pour les mat\u00e9riaux plus tendres, une force plus faible est utilis\u00e9e; pour les mat\u00e9riaux plus durs, une\u00a0<\/span><strong><span>bille en carbure de tungst\u00e8ne<\/span><\/strong><span>\u00a0remplace la bille en acier.<\/span><\/p>\n<p><span>Le test fournit des r\u00e9sultats num\u00e9riques pour quantifier la duret\u00e9 d&rsquo;un mat\u00e9riau, qui est exprim\u00e9e par le\u00a0<\/span><strong><span>nombre de duret\u00e9 Brinell<\/span><\/strong><span>\u00a0&#8211;\u00a0<\/span><strong><span>HB<\/span><\/strong><span>.\u00a0Le nombre de duret\u00e9 Brinell est d\u00e9sign\u00e9 par les normes d&rsquo;essai les plus couramment utilis\u00e9es (ASTM E10-14[2] et ISO 6506\u20131:2005) comme HBW (H de la duret\u00e9, B de Brinell et W du mat\u00e9riau du p\u00e9n\u00e9trateur, le tungst\u00e8ne (wolfram) carbure). Dans les anciennes normes, HB ou HBS \u00e9taient utilis\u00e9s pour d\u00e9signer les mesures effectu\u00e9es avec des p\u00e9n\u00e9trateurs en acier.<\/span><\/p>\n<p><span>\u00a0<\/span><\/p>\n<p><span>L&rsquo; indice de\u00a0<\/span><strong><span>duret\u00e9 Brinell<\/span><\/strong><span>\u00a0(HB) est la charge divis\u00e9e par la surface de l&rsquo;indentation.\u00a0Le diam\u00e8tre de l&#8217;empreinte est mesur\u00e9 avec un microscope \u00e0 \u00e9chelle superpos\u00e9e.\u00a0Le nombre de duret\u00e9 Brinell est calcul\u00e9 \u00e0 partir de l&rsquo;\u00e9quation:<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-28042\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/brinell-hardness-number-definition.png\" alt=\"Essai de duret\u00e9 Brinell\" width=\"320\" height=\"190\" \/><\/a><\/p>\n<p><span>Il existe une vari\u00e9t\u00e9 de m\u00e9thodes d&rsquo;essai couramment utilis\u00e9es (par exemple, Brinell, Knoop, Vickers et Rockwell).\u00a0Il existe des tableaux qui sont disponibles corr\u00e9lant les nombres de duret\u00e9 des diff\u00e9rentes m\u00e9thodes d&rsquo;essai o\u00f9 la corr\u00e9lation est applicable.\u00a0Dans toutes les \u00e9chelles, un nombre \u00e9lev\u00e9 de duret\u00e9 repr\u00e9sente un m\u00e9tal dur.<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/table-brinell-hardness-numbers.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-full wp-image-28044\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/01\/table-brinell-hardness-numbers.png\" alt=\"Num\u00e9ro de duret\u00e9 Brinell\" width=\"288\" height=\"297\" \/><\/a><span>Outre la corr\u00e9lation entre les diff\u00e9rents nombres de duret\u00e9, il existe \u00e9galement des corr\u00e9lations possibles avec d&rsquo;autres propri\u00e9t\u00e9s des mat\u00e9riaux.\u00a0Par exemple, pour les aciers au carbone ordinaires trait\u00e9s thermiquement et les aciers moyennement alli\u00e9s, une autre conversion pratique est celle de\u00a0<\/span><strong><span>la duret\u00e9 Brinell en r\u00e9sistance \u00e0\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/strength\/stress-strain-curve-stress-strain-diagram\/ultimate-tensile-strength-uts\/\"><span>la traction ultime<\/span><\/a><\/strong><span>.\u00a0Dans ce cas, la r\u00e9sistance \u00e0 la traction ultime (en psi) est approximativement \u00e9gale \u00e0 l&rsquo;indice de duret\u00e9 Brinell multipli\u00e9 par\u00a0<\/span><strong><span>500<\/span><\/strong><span>.\u00a0G\u00e9n\u00e9ralement, une duret\u00e9 \u00e9lev\u00e9e indiquera une r\u00e9sistance relativement\u00a0<\/span><a href=\"https:\/\/material-properties.org\/what-is-strength-definition\/\"><span>\u00e9lev\u00e9e<\/span><\/a><span>\u00a0et\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/ductility\/\"><span>une faible ductilit\u00e9<\/span><\/a><span>\u00a0du mat\u00e9riau.<\/span><\/p>\n<p><span>Dans l&rsquo;industrie, les essais de duret\u00e9 sur m\u00e9taux sont principalement utilis\u00e9s pour contr\u00f4ler la qualit\u00e9 et l&rsquo;homog\u00e9n\u00e9it\u00e9 des m\u00e9taux, notamment lors des op\u00e9rations de traitement thermique.\u00a0Les tests peuvent g\u00e9n\u00e9ralement \u00eatre appliqu\u00e9s au produit fini sans dommage significatif.<\/span><\/p>\n<p><span>Voir aussi: <\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/rockwell-hardness-test\/\"><span>Test de duret\u00e9 Rockwell<\/span><\/a><\/p>\n<p><span>Voir aussi: <\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/vickers-hardness-test-vickers-hardness-number\/\"><span>Test de duret\u00e9 Vickers<\/span><\/a><\/p>\n<p><span>Voir aussi: <\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/knoop-hardness-test-knoop-hardness-number\/\"><span>Test de duret\u00e9 Knoop<\/span><\/a><\/p>\n<p><span><\/span><\/p><\/div><\/div><\/span><\/p>\n<p><span><div  class=\"lgc-column lgc-grid-parent lgc-grid-100 lgc-tablet-grid-100 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<p><span><div class=\"su-accordion su-u-trim\"><div class=\"su-spoiler su-spoiler-style-default su-spoiler-icon-plus\" data-scroll-offset=\"0\" data-anchor-in-url=\"no\"><div class=\"su-spoiler-title\" tabindex=\"0\" role=\"button\"><span class=\"su-spoiler-icon\"><\/span>References :<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">\u00a0<\/div><\/div><\/div><\/span><strong><span>Science des mat\u00e9riaux:<\/span><\/strong><\/p>\n<ol>\n<li><span>D\u00e9partement am\u00e9ricain de l&rsquo;\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 1 et 2. Janvier 1993.<\/span><\/li>\n<li><span>D\u00e9partement am\u00e9ricain de l&rsquo;\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 2 et 2. Janvier 1993.<\/span><\/li>\n<li><span>William D. Callister, David G. Rethwisch.\u00a0Science et g\u00e9nie des mat\u00e9riaux : une introduction 9e \u00e9dition, Wiley ;\u00a09 \u00e9dition (4 d\u00e9cembre 2013), ISBN-13\u00a0: 978-1118324578.<\/span><\/li>\n<li><span>En ligneEberhart, Mark (2003).\u00a0Pourquoi les choses se cassent\u00a0: Comprendre le monde par la mani\u00e8re dont il se d\u00e9compose.\u00a0Harmonie.\u00a0ISBN 978-1-4000-4760-4.<\/span><\/li>\n<li><span>Gaskell, David R. (1995).\u00a0Introduction \u00e0 la thermodynamique des mat\u00e9riaux (4e \u00e9d.).\u00a0\u00c9ditions Taylor et Francis.\u00a0ISBN 978-1-56032-992-3.<\/span><\/li>\n<li><span>Gonzalez-Vi\u00f1as, W. &amp; Mancini, HL (2004).\u00a0Une introduction \u00e0 la science des mat\u00e9riaux.\u00a0Presse universitaire de Princeton.\u00a0ISBN 978-0-691-07097-1<\/span><\/li>\n<li><span>Ashby, Michael;\u00a0Hugh Shercliff;\u00a0David Cebon (2007).\u00a0Mat\u00e9riaux: ing\u00e9nierie, science, traitement et conception (1\u00e8re \u00e9d.).\u00a0Butterworth-Heinemann.\u00a0ISBN 978-0-7506-8391-3.<\/span><\/li>\n<li><span>JR Lamarsh, AJ Baratta, Introduction au g\u00e9nie nucl\u00e9aire, 3e \u00e9d., Prentice-Hall, 2001, ISBN : 0-201-82498-1.<\/span><\/li>\n<\/ol>\n<p><span><\/span><\/p><\/div><\/div><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><div class=\"su-divider su-divider-style-default\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"><\/div><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\">\n<h2><span>Voir au dessus:<\/span><\/h2>\n<p><span>Duret\u00e9<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/hardness\/\" class=\"su-button su-button-style-flat\" style=\"color:#606060;background-color:#ffffff;border-color:#cccccc;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px\" target=\"_self\"><span style=\"color:#606060;padding:7px 20px;font-size:16px;line-height:24px;border-color:#ffffff;border-radius:10px;-moz-border-radius:10px;-webkit-border-radius:10px;text-shadow:0px 0px 0px #000000;-moz-text-shadow:0px 0px 0px #000000;-webkit-text-shadow:0px 0px 0px #000000\"><img src=\"icon : lien\" alt=\"\" style=\"width:24px;height:24px\" \/> <\/span><\/a><\/span><\/p><\/div><\/div><div  class=\"lgc-column lgc-grid-parent lgc-grid-33 lgc-tablet-grid-33 lgc-mobile-grid-100 lgc-equal-heights \"><div  class=\"inside-grid-column\"><\/div><\/div><\/span><\/p>\n<p><span><div class=\"su-divider su-divider-style-dotted\" style=\"margin:15px 0;border-width:2px;border-color:#999999\"><\/div><\/span><\/p>\n<p><span>Nous esp\u00e9rons que cet article, <strong>Num\u00e9ro de duret\u00e9 Brinell &#8211; \u00c9chelle Brinell<\/strong><\/span><span>, vous aidera.\u00a0Si oui,\u00a0<\/span><strong><span>donnez-nous un like<\/span><\/strong><span>\u00a0dans la barre lat\u00e9rale.\u00a0L&rsquo;objectif principal de ce site Web est d&rsquo;aider le public \u00e0 apprendre des informations int\u00e9ressantes et importantes sur les mat\u00e9riaux et leurs propri\u00e9t\u00e9s.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nous esp\u00e9rons que cet article, Num\u00e9ro de duret\u00e9 Brinell &#8211; \u00c9chelle Brinell, vous aidera.\u00a0Si oui,\u00a0donnez-nous un like\u00a0dans la barre lat\u00e9rale.\u00a0L&rsquo;objectif principal de ce site Web est d&rsquo;aider le public \u00e0 apprendre des informations int\u00e9ressantes et importantes sur les mat\u00e9riaux et leurs propri\u00e9t\u00e9s.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce que l&#039;indice de duret\u00e9 Brinell - \u00c9chelle Brinell - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"L&#039;indice de duret\u00e9 Brinell (HB) est la charge divis\u00e9e par la surface de l&#039;indentation. 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