{"id":116293,"date":"2022-05-12T00:10:26","date_gmt":"2022-05-11T23:10:26","guid":{"rendered":"https:\/\/material-properties.org\/quelle-est-la-composition-de-lacier-inoxydable-austenitique-definition\/"},"modified":"2022-05-20T08:52:05","modified_gmt":"2022-05-20T07:52:05","slug":"quelle-est-la-composition-de-lacier-inoxydable-austenitique-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/quelle-est-la-composition-de-lacier-inoxydable-austenitique-definition\/","title":{"rendered":"Quelle est la composition de l&rsquo;acier inoxydable aust\u00e9nitique &#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 aciers inoxydables aust\u00e9nitiques contiennent entre 16 et 25% de chrome et peuvent \u00e9galement contenir de l&rsquo;azote en solution.\u00a0Ils poss\u00e8dent une microstructure cubique \u00e0 faces centr\u00e9es (fcc) non magn\u00e9tique et peuvent \u00eatre facilement soud\u00e9s.<\/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>\u00a0<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/304L-austenitic-stainless-steel-figure-min.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-medium wp-image-29190\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/304L-austenitic-stainless-steel-figure-min-300x300.png\" alt=\"acier inoxydable 304\" width=\"300\" height=\"300\" \/><\/a><strong><span>Les aciers inoxydables aust\u00e9nitiques<\/span><\/strong><span>\u00a0contiennent entre 16 et 25 % de chrome et peuvent \u00e9galement contenir de l&rsquo;azote en solution, ce qui contribue \u00e0 leur r\u00e9sistance relativement\u00a0<\/span><strong><span>\u00e9lev\u00e9e \u00e0 la corrosion<\/span><\/strong><span>.\u00a0<\/span><strong><span>Les aciers inoxydables aust\u00e9nitiques<\/span><\/strong><span> sont class\u00e9s avec les d\u00e9signations des s\u00e9ries AISI 200 ou 300;\u00a0les nuances de la s\u00e9rie 300 sont des alliages chrome-nickel, et la s\u00e9rie 200 repr\u00e9sente un ensemble de compositions dans lesquelles le mangan\u00e8se et\/ou l&rsquo;azote remplacent une partie du nickel.\u00a0Les aciers inoxydables aust\u00e9nitiques ont la meilleure r\u00e9sistance \u00e0 la corrosion de tous les aciers inoxydables et ils ont d&rsquo;excellentes propri\u00e9t\u00e9s cryog\u00e9niques et une bonne r\u00e9sistance \u00e0 haute temp\u00e9rature.\u00a0Ils poss\u00e8dent un\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/crystal-structures\/face-centered-cubic-fcc-structure\/\"><span>cube \u00e0 faces centr\u00e9es<\/span><\/a> <span>(fcc) microstructure non magn\u00e9tique, et ils peuvent \u00eatre facilement soud\u00e9s.\u00a0Cette structure cristalline aust\u00e9nitique est obtenue par des ajouts suffisants d&rsquo;\u00a0<\/span><strong><span>\u00e9l\u00e9ments stabilisateurs d&rsquo;aust\u00e9nite <\/span><\/strong><span>nickel, mangan\u00e8se et azote.\u00a0L&rsquo;acier inoxydable aust\u00e9nitique est la plus grande famille d&rsquo;aciers inoxydables, repr\u00e9sentant environ les deux tiers de toute la production d&rsquo;acier inoxydable.\u00a0Leur limite d&rsquo;\u00e9lasticit\u00e9 est faible (200 \u00e0 300 MPa), ce qui limite leur utilisation pour les composants structurels et autres \u00e9l\u00e9ments porteurs.\u00a0Ils ne peuvent pas \u00eatre durcis par traitement thermique mais ont la propri\u00e9t\u00e9 utile de pouvoir \u00eatre \u00e9crouis \u00e0 des niveaux de r\u00e9sistance \u00e9lev\u00e9s tout en conservant un niveau utile de ductilit\u00e9 et de t\u00e9nacit\u00e9.\u00a0Les aciers inoxydables duplex ont tendance \u00e0 \u00eatre pr\u00e9f\u00e9r\u00e9s dans de telles situations en raison de leur r\u00e9sistance \u00e9lev\u00e9e et de leur r\u00e9sistance \u00e0 la corrosion.\u00a0La nuance la plus connue est l&rsquo;acier inoxydable AISI 304, qui contient \u00e0 la fois du chrome (entre 15 % et 20 %) et du nickel (entre 2 % et 10,5 %) comme principaux constituants non ferreux.\u00a0L&rsquo;acier inoxydable 304 a une excellente r\u00e9sistance \u00e0 une large gamme d&rsquo;environnements atmosph\u00e9riques et \u00e0 de nombreux milieux corrosifs.\u00a0Ces alliages sont g\u00e9n\u00e9ralement caract\u00e9ris\u00e9s comme ductiles, soudables et durcissables par formage \u00e0 froid.<\/span><\/p>\n<h2><span>Acier inoxydable &#8211; Type 304<\/span><\/h2>\n<p><strong><span>L&rsquo;acier inoxydable de type 304<\/span><\/strong><span>\u00a0(contenant 18\u00a0% \u00e0 20\u00a0% de chrome et 8\u00a0% \u00e0 10,5\u00a0% de nickel) est l&rsquo;acier inoxydable le plus courant.\u00a0Il est \u00e9galement appel\u00e9 acier\u00a0inoxydable \u00ab<\/span><strong><span>18\/8 \u00bb en raison de sa composition qui comprend 18 % de chrome et 8 % de nickel.\u00a0<\/span><\/strong><span>Cet alliage r\u00e9siste \u00e0 la plupart des types de corrosion.\u00a0C&rsquo;est un acier inoxydable aust\u00e9nitique et il poss\u00e8de \u00e9galement d&rsquo;excellentes propri\u00e9t\u00e9s cryog\u00e9niques, une bonne r\u00e9sistance \u00e0 haute temp\u00e9rature ainsi que de bonnes propri\u00e9t\u00e9s de formage et de soudage.\u00a0Il est moins conducteur \u00e9lectriquement et thermiquement que\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/steels-properties-of-steels\/carbon-steel-plain-carbon-steel\/\"><span>l&rsquo;acier au carbone<\/span><\/a><span>\u00a0et est essentiellement non magn\u00e9tique.<\/span><\/p>\n<p><strong><span>L&rsquo;acier inoxydable de type 304L<\/span><\/strong><span>, largement utilis\u00e9 dans l&rsquo;industrie nucl\u00e9aire, est une version \u00e0 tr\u00e8s faible teneur en carbone de l&rsquo;alliage d&rsquo;acier 304.\u00a0Cette nuance a des propri\u00e9t\u00e9s m\u00e9caniques l\u00e9g\u00e8rement inf\u00e9rieures \u00e0 la nuance standard 304, mais reste largement utilis\u00e9e gr\u00e2ce \u00e0 sa polyvalence.\u00a0La faible teneur en carbone du 304L minimise les pr\u00e9cipitations de carbure d\u00e9l\u00e9t\u00e8res ou nocives r\u00e9sultant du soudage.\u00a0Le 304L peut donc \u00eatre utilis\u00e9 \u00ab\u00a0tel que soud\u00e9\u00a0\u00bb dans des environnements \u00e0 corrosion s\u00e9v\u00e8re, et il \u00e9limine le besoin de recuit.\u00a0Le grade 304 a \u00e9galement une bonne r\u00e9sistance \u00e0 l&rsquo;oxydation en service intermittent jusqu&rsquo;\u00e0 870 \u00b0C et en service continu jusqu&rsquo;\u00e0 925 \u00b0C.<\/span><\/p>\n<p><span>Le corps de la\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-power-plant\/nuclear-reactor\/reactor-pressure-vessel\/\"><span>cuve du r\u00e9acteur<\/span><\/a><span>\u00a0est construit\u00a0<\/span><strong><span>en acier au carbone faiblement alli\u00e9 de haute qualit\u00e9<\/span><\/strong><span>\u00a0et toutes les surfaces qui entrent en contact avec le fluide de refroidissement du r\u00e9acteur\u00a0<\/span><strong><span>sont rev\u00eatues<\/span><\/strong><span>\u00a0d&rsquo;un minimum d&rsquo;environ 3 \u00e0 10 mm d&rsquo;\u00a0<\/span><strong><span>acier inoxydable aust\u00e9nitique<\/span><\/strong><span>\u00a0afin de minimiser la corrosion.\u00a0\u00c9tant donn\u00e9 que la nuance 304L ne n\u00e9cessite pas de recuit apr\u00e8s soudage, elle est largement utilis\u00e9e dans les composants de gros calibre.<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/stainless-steel-Type-304-composition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-29151\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/stainless-steel-Type-304-composition.png\" alt=\"acier inoxydable - Type 304\" width=\"650\" height=\"110\" \/><\/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>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>Acier inoxydable aust\u00e9nitique<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/stainless-steel\/austenitic-stainless-steel\/\" 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,\u00a0<\/span><strong><span>Composition de l&rsquo;acier inoxydable aust\u00e9nitique<\/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","protected":false},"excerpt":{"rendered":"<p>Nous esp\u00e9rons que cet article,\u00a0Composition de l&rsquo;acier inoxydable aust\u00e9nitique, 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>Quelle est la composition de l&#039;acier inoxydable aust\u00e9nitique - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Les aciers inoxydables aust\u00e9nitiques contiennent entre 16 et 25 % de chrome et peuvent \u00e9galement contenir de l&#039;azote en solution. 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