{"id":116114,"date":"2022-05-10T02:17:12","date_gmt":"2022-05-10T01:17:12","guid":{"rendered":"https:\/\/material-properties.org\/types-dalliages-de-titane-definition\/"},"modified":"2022-05-16T11:54:51","modified_gmt":"2022-05-16T10:54:51","slug":"types-dalliages-de-titane-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/types-dalliages-de-titane-definition\/","title":{"rendered":"Types d&rsquo;alliages de titane &#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\">Types d&rsquo;alliages de titane.\u00a0Le titane existe sous deux formes cristallographiques : le titane alpha et le titane b\u00eata.\u00a0La classification de base des alliages de titane est bas\u00e9e sur ce crit\u00e8re cristallographique.<\/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><strong><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/titanium-grade-5-image-min.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-medium wp-image-29423\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/titanium-grade-5-image-min-300x300.png\" alt=\"Alliage de titane\" width=\"300\" height=\"300\" \/><\/a><\/strong><strong><span>Les alliages de titane<\/span><\/strong><span>\u00a0sont des m\u00e9taux qui contiennent un m\u00e9lange de titane et d&rsquo;autres \u00e9l\u00e9ments chimiques.\u00a0Ces alliages ont une r\u00e9sistance \u00e0 la traction et une t\u00e9nacit\u00e9 tr\u00e8s \u00e9lev\u00e9es (m\u00eame \u00e0 des temp\u00e9ratures extr\u00eames).\u00a0Ils sont l\u00e9gers, ont une r\u00e9sistance \u00e0 la\u00a0<\/span><strong><span>corrosion extraordinaire<\/span><\/strong><span>\u00a0et la capacit\u00e9 de r\u00e9sister \u00e0 des temp\u00e9ratures extr\u00eames.<\/span><\/p>\n<h2><span>Types d&rsquo;Alliages de Titane<\/span><\/h2>\n<p><span>Le titane existe sous deux formes cristallographiques.\u00a0\u00c0 temp\u00e9rature ambiante, le titane non alli\u00e9 (commercialement pur) a une\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/crystal-structures\/hexagonal-close-packed-hcp-structure\/\"><strong><span>structure cristalline hexagonale compacte (hcp)<\/span><\/strong><\/a><span>\u00a0appel\u00e9e\u00a0<\/span><strong><span>phase alpha (\u03b1)<\/span><\/strong><span>.\u00a0Lorsque la temp\u00e9rature du titane pur atteint 885 \u00b0C (appel\u00e9e temp\u00e9rature \u03b2 transus du titane), la structure cristalline se transforme en une <\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/crystal-structures\/body-centered-cubic-bcc-structure\/\"><strong><span>structure bcc<\/span><\/strong><\/a><span>\u00a0connue sous le nom de\u00a0<\/span><strong><span>phase b\u00eata (\u03b2)<\/span><\/strong><span>.\u00a0Les \u00e9l\u00e9ments d&rsquo;alliage augmentent ou abaissent la temp\u00e9rature pour la transformation \u03b1 en \u03b2, de sorte que les \u00e9l\u00e9ments d&rsquo;alliage dans le titane sont class\u00e9s comme stabilisants \u03b1 ou stabilisants \u03b2.\u00a0Par exemple, le vanadium, le niobium et le molybd\u00e8ne diminuent la temp\u00e9rature de transformation \u03b1 en \u03b2 et favorisent la formation de la phase \u03b2.<\/span><\/p>\n<ul>\n<li><strong><span>Alliages Alpha<\/span><\/strong><span>.\u00a0Les alliages alpha contiennent des \u00e9l\u00e9ments tels que l&rsquo;aluminium et l&rsquo;\u00e9tain et sont pr\u00e9f\u00e9r\u00e9s pour les applications \u00e0 haute temp\u00e9rature en raison de leurs caract\u00e9ristiques de fluage sup\u00e9rieures. Ces \u00e9l\u00e9ments \u03b1-stabilisateurs agissent en inhibant le changement de la temp\u00e9rature de transformation de phase ou en la faisant augmenter.\u00a0L&rsquo;absence de transition ductile \u00e0 fragile, une caract\u00e9ristique des alliages \u03b2, rend les alliages \u03b1 adapt\u00e9s aux applications cryog\u00e9niques.\u00a0D&rsquo;autre part, ils ne peuvent pas \u00eatre renforc\u00e9s par un traitement thermique car l&rsquo;alpha est la phase stable et ils ne sont donc pas aussi r\u00e9sistants que les alliages b\u00eata.<\/span><\/li>\n<li><strong><span>Alliages B\u00eata<\/span><\/strong><span>.\u00a0Les alliages b\u00eata contiennent des \u00e9l\u00e9ments de transition tels que le vanadium, le niobium et le molybd\u00e8ne, qui ont tendance \u00e0 diminuer la temp\u00e9rature de la transition de phase \u03b1 \u00e0 \u03b2.\u00a0Les alliages b\u00eata ont une excellente trempabilit\u00e9 et r\u00e9pondent facilement au traitement thermique.\u00a0Ces mat\u00e9riaux sont hautement forgeables et pr\u00e9sentent des t\u00e9nacit\u00e9s \u00e0 la rupture \u00e9lev\u00e9es.\u00a0Par exemple, la r\u00e9sistance \u00e0 la traction ultime de l&rsquo;alliage de titane \u00e0 haute r\u00e9sistance &#8211; TI-10V-2Fe-3Al est d&rsquo;environ 1200 MPa.<\/span><\/li>\n<li><strong><span>Alliage Alpha + B\u00eata<\/span><\/strong><span>.\u00a0Les alliages alpha + b\u00eata ont des compositions qui supportent un m\u00e9lange de phases \u03b1 et \u03b2 et peuvent contenir entre 10 et 50 % de phase \u03b2 \u00e0 temp\u00e9rature ambiante.\u00a0L&rsquo;alliage \u03b1 + \u03b2 le plus courant est le Ti-6Al-4V.\u00a0La r\u00e9sistance de ces alliages peut \u00eatre am\u00e9lior\u00e9e et contr\u00f4l\u00e9e par un traitement thermique.\u00a0Les exemples incluent: Ti-6Al-4V, Ti-6Al-4V-ELI, Ti-6Al-6V-2Sn, Ti-6Al-7Nb.<\/span><\/li>\n<\/ul>\n<h2><span>Nuances de Titane<\/span><\/h2>\n<p><span>Le titane pur et ses alliages sont g\u00e9n\u00e9ralement d\u00e9finis par leurs nuances d\u00e9finies par la norme internationale ASTM.\u00a0En g\u00e9n\u00e9ral, il existe pr\u00e8s de 40 nuances de titane et de ses alliages.\u00a0Vous trouverez ci-dessous un aper\u00e7u des\u00a0<\/span><strong><span>alliages de titane<\/span><\/strong><span>\u00a0et\u00a0<\/span><strong><span>des nuances pures<\/span><\/strong><span>\u00a0les plus fr\u00e9quemment rencontr\u00e9s , leurs propri\u00e9t\u00e9s, leurs avantages et leurs applications industrielles.<\/span><\/p>\n<ul>\n<li><strong><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/titanium-alloys-composition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright wp-image-29766\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/titanium-alloys-composition.png\" alt=\"alliages de titane - composition\" width=\"631\" height=\"161\" \/><\/a><span>Grade 1<\/span><\/strong><span>.\u00a0Le titane grade 1 commercialement pur est l&rsquo;alliage de titane le plus ductile et le plus doux.\u00a0C&rsquo;est une bonne solution pour le formage \u00e0 froid et les environnements corrosifs.\u00a0Il poss\u00e8de la plus grande\u00a0<\/span><strong><span>formabilit\u00e9<\/span><\/strong><span>, une excellente r\u00e9sistance \u00e0 la corrosion et une r\u00e9sistance \u00e9lev\u00e9e aux chocs.\u00a0En raison de sa formabilit\u00e9, il est couramment disponible sous forme de plaque et de tube en titane.\u00a0Ceux-ci inclus:<\/span>\n<ul>\n<li><span>Traitement chimique<\/span><\/li>\n<li><span>Fabrication de chlorate<\/span><\/li>\n<li><span>Architecture<\/span><\/li>\n<li><span>Industrie m\u00e9dicale<\/span><\/li>\n<li><span>Industrie maritime<\/span><\/li>\n<li><span>Pi\u00e8ces automobiles<\/span><\/li>\n<li><span>Structure de la cellule<\/span><\/li>\n<\/ul>\n<\/li>\n<li><strong><span>Garde 2<\/span><\/strong><span>.\u00a0Le titane de grade 2 commercialement pur est tr\u00e8s similaire au grade 1, mais il a une r\u00e9sistance plus \u00e9lev\u00e9e que le grade 1 et d&rsquo;excellentes propri\u00e9t\u00e9s de formage \u00e0 froid.\u00a0Il offre d&rsquo;excellentes propri\u00e9t\u00e9s de soudage et une excellente r\u00e9sistance \u00e0 l&rsquo;oxydation et \u00e0 la corrosion.\u00a0Cette qualit\u00e9 de titane est la qualit\u00e9 la plus courante de l&rsquo;industrie du titane commercialement pur.\u00a0C&rsquo;est le premier choix pour de nombreux domaines d&rsquo;applications:<\/span>\n<ul>\n<li><span>A\u00e9rospatial,<\/span><\/li>\n<li><span>Automobile,<\/span><\/li>\n<li><span>Traitement chimique et fabrication de chlorate,<\/span><\/li>\n<li><span>Dessalement,<\/span><\/li>\n<li><span>La production d&rsquo;\u00e9nergie.<\/span><\/li>\n<\/ul>\n<\/li>\n<li><strong><span>Gtade 5 \u2013 Ti-6Al-4V<\/span><\/strong><span>.\u00a0Le grade 5 est l&rsquo;alliage le plus couramment utilis\u00e9 et il s&rsquo;agit d&rsquo;un alliage alpha + b\u00eata.\u00a0L&rsquo;alliage de Grade 5 repr\u00e9sente 50 % de l&rsquo;utilisation totale de titane dans le monde. Il a une composition chimique de 6% d&rsquo;aluminium, 4% de vanadium, 0,25% (maximum) de fer, 0,2% (maximum) d&rsquo;oxyg\u00e8ne et le reste de titane.\u00a0G\u00e9n\u00e9ralement, le Ti-6Al-4V est utilis\u00e9 dans des applications jusqu&rsquo;\u00e0 400 degr\u00e9s Celsius.\u00a0Il a une densit\u00e9 d&rsquo;environ 4420 kg\/m\u00a0<\/span><sup><span>3<\/span><\/sup><span>\u00a0.\u00a0Il est nettement plus r\u00e9sistant que le titane commercialement pur (grades 1 \u00e0 4) en raison de sa possibilit\u00e9 d&rsquo;\u00eatre trait\u00e9 thermiquement.\u00a0Cette nuance est une excellente combinaison de r\u00e9sistance, de r\u00e9sistance \u00e0 la corrosion, de soudure et de fabricabilit\u00e9. C&rsquo;est le premier choix pour de nombreux domaines d&rsquo;applications:<\/span>\n<ul>\n<li><span>Turbines d&rsquo;avion<\/span><\/li>\n<li><span>Composants du moteur<\/span><\/li>\n<li><span>Composants structuraux d&rsquo;a\u00e9ronefs<\/span><\/li>\n<li><span>Attaches a\u00e9rospatiales<\/span><\/li>\n<li><span>Pi\u00e8ces automatiques performantes<\/span><\/li>\n<li><span>Applications marines<\/span><\/li>\n<\/ul>\n<\/li>\n<li><strong><span>Grade 23 \u2013 Ti-6Al-4V-ELI<\/span><\/strong><span>.\u00a0Ti-6Al-4V-ELI ou TAV-ELI est la version de puret\u00e9 sup\u00e9rieure de Ti-6Al-4V.\u00a0ELI signifie Extra Low Interstitiel.\u00a0La diff\u00e9rence essentielle entre Ti6Al4V ELI (Grade 23) et Ti6Al4V (Grade 5) est la r\u00e9duction de la teneur en oxyg\u00e8ne \u00e0 0,13 % (maximum) dans le Grade 23. La r\u00e9duction des \u00e9l\u00e9ments interstitiels oxyg\u00e8ne et fer am\u00e9liore la ductilit\u00e9 et la r\u00e9sistance \u00e0 la rupture avec une certaine r\u00e9duction de la r\u00e9sistance. C&rsquo;est le premier choix pour tout type de situation o\u00f9 une combinaison de haute r\u00e9sistance, l\u00e9g\u00e8ret\u00e9, bonne r\u00e9sistance \u00e0 la corrosion et haute t\u00e9nacit\u00e9 est requise.\u00a0Cette qualit\u00e9 de titane, qualit\u00e9 m\u00e9dicale du titane, est utilis\u00e9e dans\u00a0<\/span><strong><span>des applications biom\u00e9dicales<\/span><\/strong><span>\u00a0telles que les composants implantables en raison de sa biocompatibilit\u00e9, de sa bonne r\u00e9sistance \u00e0 la fatigue et de son faible module.<\/span><\/li>\n<\/ul>\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>R\u00e9f\u00e9rences :<\/div><div class=\"su-spoiler-content su-u-clearfix su-u-trim\">Science des mat\u00e9riaux:<\/div><\/div><\/div><\/span><\/p>\n<p><span>D\u00e9partement am\u00e9ricain de l&rsquo;\u00e9nergie, science des mat\u00e9riaux.\u00a0DOE Fundamentals Handbook, Volume 1 and 2. Janvier 1993.<\/span><br \/>\n<span>US Department of Energy, Material Science.\u00a0DOE Fundamentals Handbook, Volume 2 et 2. Janvier 1993.<\/span><br \/>\n<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><br \/>\n<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><br \/>\n<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><br \/>\n<span>Gonz\u00e1lez-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><br \/>\n<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><br \/>\n<span>JR Lamarsh, AJ Baratta, Introduction au g\u00e9nie nucl\u00e9aire, 3e \u00e9d., Prentice-Hall, 2001, ISBN : 0-201-82498-1.<\/span><br \/>\n<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<p><span>Voir ci-dessus:<\/span><br \/>\n<span>Alliages de titane \u00a0\u00bb style=\u00a0\u00bbplat\u00a0\u00bb background=\u00a0\u00bb#ffffff\u00a0\u00bb color=\u00a0\u00bb#606060&Prime; size=\u00a0\u00bb5&Prime; radius=\u00a0\u00bb10&Prime; icon=\u00a0\u00bbic\u00f4ne\u00a0: lien\u00a0\u00bb icon_color=\u00a0\u00bb#5d5d5d\u00a0\u00bb text_shadow=\u00a0\u00bb0px 0px 0px #000000&Prime; ][\/su_button]<\/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,\u00a0<\/span><strong><span>Types d&rsquo;alliages de titane<\/span><\/strong><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<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nous esp\u00e9rons que cet article,\u00a0Types d&rsquo;alliages de titane, 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. &nbsp;<\/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>Types d&#039;alliages de titane - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Types d&#039;alliages de titane. 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Le titane existe sous deux formes cristallographiques : le titane alpha et le titane b\u00eata. 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