{"id":116112,"date":"2022-05-10T01:44:25","date_gmt":"2022-05-10T00:44:25","guid":{"rendered":"https:\/\/material-properties.org\/que-sont-les-alliages-beta-de-titane-definition\/"},"modified":"2022-05-16T11:50:44","modified_gmt":"2022-05-16T10:50:44","slug":"que-sont-les-alliages-beta-de-titane-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/que-sont-les-alliages-beta-de-titane-definition\/","title":{"rendered":"Que sont les alliages b\u00eata 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\">Les alliages de titane b\u00eata sont des alliages 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.<\/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><\/p>\n<p><span>Bien que le titane \u00ab\u00a0commercialement pur\u00a0\u00bb ait des propri\u00e9t\u00e9s m\u00e9caniques acceptables et ait \u00e9t\u00e9 utilis\u00e9 pour les implants orthop\u00e9diques et dentaires, pour la plupart des applications, le titane est alli\u00e9 avec de petites quantit\u00e9s d&rsquo;aluminium et de vanadium, g\u00e9n\u00e9ralement 6% et 4% respectivement, en poids.\u00a0Ce m\u00e9lange a une solubilit\u00e9 solide qui varie consid\u00e9rablement avec la temp\u00e9rature, ce qui lui permet de subir un\u00a0<\/span><strong><span>renforcement par pr\u00e9cipitation<\/span><\/strong><span>.<\/span><\/p>\n<p><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<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>Grade 5 &#8211; Ti-6Al-4V<\/span><\/h2>\n<p><span>Le 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<\/span><sup><span>3<\/span><\/sup><span>.\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. Cette 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><\/p>\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<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>Titanium Beta Alloys<\/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,\u00a0Titanium Beta Alloys, 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>Que sont les alliages b\u00eata de titane - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Les alliages b\u00eata de titane sont des alliages hautement forgeables et pr\u00e9sentent des t\u00e9nacit\u00e9s \u00e0 la rupture \u00e9lev\u00e9es. Par exemple, la r\u00e9sistance \u00e0 la traction ultime de l&#039;alliage de titane \u00e0 haute r\u00e9sistance - TI-10V-2Fe-3Al est d&#039;environ 1200 MPa.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/material-properties.org\/fr\/que-sont-les-alliages-beta-de-titane-definition\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Que sont les alliages b\u00eata de titane - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles\" \/>\n<meta property=\"og:description\" content=\"Les alliages b\u00eata de titane sont des alliages hautement forgeables et pr\u00e9sentent des t\u00e9nacit\u00e9s \u00e0 la rupture \u00e9lev\u00e9es. Par exemple, la r\u00e9sistance \u00e0 la traction ultime de l&#039;alliage de titane \u00e0 haute r\u00e9sistance - TI-10V-2Fe-3Al est d&#039;environ 1200 MPa.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/material-properties.org\/fr\/que-sont-les-alliages-beta-de-titane-definition\/\" \/>\n<meta property=\"og:site_name\" content=\"Material Properties\" \/>\n<meta property=\"article:published_time\" content=\"2022-05-10T00:44:25+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-05-16T10:50:44+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/titanium-grade-5-image-min-300x300.png\" \/>\n<meta name=\"author\" content=\"Nick Connor\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Nick Connor\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/material-properties.org\/fr\/que-sont-les-alliages-beta-de-titane-definition\/\",\"url\":\"https:\/\/material-properties.org\/fr\/que-sont-les-alliages-beta-de-titane-definition\/\",\"name\":\"Que sont les alliages b\u00eata de titane - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles\",\"isPartOf\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#website\"},\"datePublished\":\"2022-05-10T00:44:25+00:00\",\"dateModified\":\"2022-05-16T10:50:44+00:00\",\"author\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Les alliages b\u00eata de titane sont des alliages hautement forgeables et pr\u00e9sentent des t\u00e9nacit\u00e9s \u00e0 la rupture \u00e9lev\u00e9es. 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Par exemple, la r\u00e9sistance \u00e0 la traction ultime de l'alliage de titane \u00e0 haute r\u00e9sistance - TI-10V-2Fe-3Al est d'environ 1200 MPa.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/material-properties.org\/fr\/que-sont-les-alliages-beta-de-titane-definition\/","og_locale":"fr_FR","og_type":"article","og_title":"Que sont les alliages b\u00eata de titane - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles","og_description":"Les alliages b\u00eata de titane sont des alliages hautement forgeables et pr\u00e9sentent des t\u00e9nacit\u00e9s \u00e0 la rupture \u00e9lev\u00e9es. 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