{"id":116202,"date":"2022-05-11T05:28:56","date_gmt":"2022-05-11T04:28:56","guid":{"rendered":"https:\/\/material-properties.org\/quelles-sont-les-proprietes-thermiques-des-alliages-daluminium-definition\/"},"modified":"2022-05-17T12:29:22","modified_gmt":"2022-05-17T11:29:22","slug":"quelles-sont-les-proprietes-thermiques-des-alliages-daluminium-definition","status":"publish","type":"post","link":"https:\/\/material-properties.org\/fr\/quelles-sont-les-proprietes-thermiques-des-alliages-daluminium-definition\/","title":{"rendered":"Quelles sont les propri\u00e9t\u00e9s thermiques des alliages d&rsquo;aluminium &#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\">Propri\u00e9t\u00e9s thermiques des alliages d&rsquo;aluminium.\u00a0Le point de fusion de l&rsquo;alliage d&rsquo;aluminium 6061 est d&rsquo;environ 600 \u00b0C. La conductivit\u00e9 thermique de l&rsquo;alliage d&rsquo;aluminium 6061 est de 150 W\/(mK).<\/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\/aluminium-alloys-6061-min.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-medium wp-image-29435\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/aluminium-alloys-6061-min-300x300.png\" alt=\"alliages d'aluminium\" width=\"300\" height=\"300\" \/><\/a><span>Les alliages d&rsquo;aluminium<\/span><\/strong><span> sont \u00e0 base d&rsquo;aluminium, dont les principaux \u00e9l\u00e9ments d&rsquo;alliage sont Cu, Mn, Si, Mg, Mg+Si, Zn.\u00a0Les compositions d&rsquo;alliages d&rsquo;aluminium sont enregistr\u00e9es aupr\u00e8s de l&rsquo;Aluminum Association.\u00a0Les alliages d&rsquo;aluminium sont r\u00e9partis en 9 familles (Al1xxx \u00e0 Al9xxx).\u00a0Les diff\u00e9rentes familles d&rsquo;alliages et les principaux \u00e9l\u00e9ments d&rsquo;alliage sont:<\/span><\/p>\n<ul>\n<li><span>1xxx: aucun \u00e9l\u00e9ment d&rsquo;alliage<\/span><\/li>\n<li><span>2xxx: Cuivre<\/span><\/li>\n<li><span>3xxx: Mangan\u00e8se<\/span><\/li>\n<li><span>4xxx: Silicium<\/span><\/li>\n<li><span>5xxx: Magn\u00e9sium<\/span><\/li>\n<li><span>6xxx: magn\u00e9sium et silicium<\/span><\/li>\n<li><span>7xxx: zinc, magn\u00e9sium et cuivre<\/span><\/li>\n<li><span>8xxx: autres \u00e9l\u00e9ments qui ne sont pas couverts par d&rsquo;autres s\u00e9ries<\/span><\/li>\n<\/ul>\n<p><span>Il existe \u00e9galement deux classifications principales, \u00e0 savoir les alliages de\u00a0<\/span><strong><span>fonderie<\/span><\/strong><span>\u00a0et les alliages\u00a0<\/span><strong><span>corroy\u00e9s<\/span><\/strong><span>, qui sont tous deux subdivis\u00e9s en cat\u00e9gories pouvant \u00eatre trait\u00e9es thermiquement et non trait\u00e9es thermiquement. Les alliages d&rsquo;aluminium contenant des \u00e9l\u00e9ments d&rsquo;alliage \u00e0 solubilit\u00e9 solide limit\u00e9e \u00e0 temp\u00e9rature ambiante et avec une forte d\u00e9pendance \u00e0 la temp\u00e9rature de la solubilit\u00e9 solide (par exemple Cu) peuvent \u00eatre renforc\u00e9s par un traitement thermique appropri\u00e9 (<\/span><strong><span>durcissement par pr\u00e9cipitation<\/span><\/strong><span>).\u00a0La r\u00e9sistance des alliages d&rsquo;Al commerciaux trait\u00e9s thermiquement d\u00e9passe 550 MPa.<\/span><\/p>\n<p><span>Les propri\u00e9t\u00e9s m\u00e9caniques des alliages d&rsquo;aluminium d\u00e9pendent fortement de leur composition de phase et de leur microstructure.\u00a0Une r\u00e9sistance \u00e9lev\u00e9e peut \u00eatre obtenue entre autres par l&rsquo;introduction d&rsquo;une fraction volumique \u00e9lev\u00e9e de particules fines de\u00a0<\/span><strong><span>seconde phase<\/span><\/strong><span> r\u00e9parties de mani\u00e8re homog\u00e8ne et par un affinement de la taille des grains.\u00a0En g\u00e9n\u00e9ral, les alliages d&rsquo;aluminium se caract\u00e9risent par une masse volumique relativement faible (2,7 g\/cm<\/span><sup><span>3<\/span><\/sup><span> contre 7,9 g\/cm<\/span><sup><span>3 <\/span><\/sup><span>pour l&rsquo;acier), des conductivit\u00e9s \u00e9lectriques et thermiques \u00e9lev\u00e9es, et une r\u00e9sistance \u00e0 la corrosion dans certains environnements courants, y compris l&rsquo;atmosph\u00e8re ambiante. La principale limitation de l&rsquo;aluminium est sa faible temp\u00e9rature de fusion (660 \u00b0C), qui limite la temp\u00e9rature maximale \u00e0 laquelle il peut \u00eatre utilis\u00e9. Pour la production g\u00e9n\u00e9rale, les alliages des s\u00e9ries 5000 et 6000 offrent une r\u00e9sistance ad\u00e9quate combin\u00e9e \u00e0 une bonne r\u00e9sistance \u00e0 la corrosion, une t\u00e9nacit\u00e9 \u00e9lev\u00e9e et une facilit\u00e9 de soudage.<\/span><\/p>\n<p><a href=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/cast-aluminium-min.png\"><img decoding=\"async\" loading=\"lazy\" class=\"alignright size-medium wp-image-29429\" src=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/cast-aluminium-min-300x219.png\" alt=\"fonte d'aluminium\" width=\"300\" height=\"219\" \/><\/a><\/p>\n<h2><span>Propri\u00e9t\u00e9s thermiques des alliages d&rsquo;aluminium<\/span><\/h2>\n<p><strong><span>Les propri\u00e9t\u00e9s thermiques<\/span><\/strong><span> des mat\u00e9riaux font r\u00e9f\u00e9rence \u00e0 la r\u00e9ponse des mat\u00e9riaux aux changements de leur <\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/<a href=\"https:\/\/modern-physics.org\/thermodynamics\/\">thermodynamics<\/a>\/thermodynamic-properties\/what-is-temperature-physics\/\u00a0\u00bb><span>temp\u00e9rature<\/span><span>\u00a0et \u00e0 l&rsquo;application de\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/heat-transfer\/introduction-to-heat-transfer\/heat-in-physics-definition-of-heat\/\"><span>chaleur<\/span><\/a><span>.\u00a0Lorsqu&rsquo;un solide absorbe de\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/<a href=\"https:\/\/modern-physics.org\/thermodynamics\/\">thermodynamics<\/a>\/what-is-energy-physics\/\u00a0\u00bb><span>l&rsquo;\u00e9nergie<\/span><span>\u00a0sous forme de chaleur, sa temp\u00e9rature augmente et ses dimensions augmentent.\u00a0Mais\u00a0<\/span><strong><span>diff\u00e9rents mat\u00e9riaux r\u00e9agissent diff\u00e9remment\u00a0<\/span><\/strong><strong><span>\u00e0<\/span><\/strong><span>\u00a0l&rsquo;application de chaleur\u00a0.<\/span><\/p>\n<p><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/thermal-properties-of-materials\/specific-heat-capacity-of-materials\/\"><span>La capacit\u00e9 calorifique<\/span><\/a><span>,\u00a0<\/span><a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/materials-science\/material-properties\/thermal-properties-of-materials\/coefficient-of-thermal-expansion-of-materials\/\"><span>la dilatation<\/span><\/a><span>\u00a0thermique et\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><span>la conductivit\u00e9 thermique<\/span><\/a><span>\u00a0sont des propri\u00e9t\u00e9s qui sont souvent critiques dans l&rsquo;utilisation pratique des solides.<\/span><\/p>\n<h3><span>Point de fusion des alliages d&rsquo;aluminium<\/span><\/h3>\n<p><span>Le point de fusion de l&rsquo;alliage d&rsquo;aluminium 2024 est d&rsquo;environ 570 \u00b0C.<\/span><\/p>\n<p><span>Le point de fusion de l&rsquo;alliage d&rsquo;aluminium 6061 est d&rsquo;environ 600 \u00b0C.<\/span><\/p>\n<p><span>En g\u00e9n\u00e9ral, la <\/span><strong><span>fusion<\/span><\/strong><span> est un\u00a0<\/span><strong><span>changement de phase<\/span><\/strong><span> d&rsquo;une substance de la phase solide \u00e0 la phase liquide.\u00a0Le\u00a0<\/span><a href=\"https:\/\/material-properties.org\/melting-point-of-chemical-elements\/\"><strong><span>point de fusion<\/span><\/strong><\/a><span> d&rsquo;une substance est la temp\u00e9rature \u00e0 laquelle ce changement de phase se produit. Le\u00a0<\/span><strong><span>point de fusion <\/span><\/strong><span>d\u00e9finit \u00e9galement une condition dans laquelle le solide et le liquide peuvent exister en \u00e9quilibre.<\/span><\/p>\n<h3><span>Conductivit\u00e9 thermique des alliages d&rsquo;aluminium<\/span><\/h3>\n<p><span>La conductivit\u00e9 thermique de l&rsquo;alliage d&rsquo;aluminium 2024 est de 140 W\/(mK).<\/span><\/p>\n<p><span>La conductivit\u00e9 thermique de l&rsquo;alliage d&rsquo;aluminium 6061 est de 150 W\/(mK).<\/span><\/p>\n<p><span>Les caract\u00e9ristiques de transfert de chaleur d&rsquo;un mat\u00e9riau solide sont mesur\u00e9es par une propri\u00e9t\u00e9 appel\u00e9e la <\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><strong><span>conductivit\u00e9 thermique<\/span><\/strong><\/a><span>, k (ou \u03bb), mesur\u00e9e en <\/span><strong><span>W\/mK<\/span><\/strong><span>. C&rsquo;est une mesure de la capacit\u00e9 d&rsquo;une substance \u00e0 transf\u00e9rer de la chaleur \u00e0 travers un mat\u00e9riau par\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conduction-heat-conduction-definition\/\"><span>conduction<\/span><\/a><span>. Notez que\u00a0<\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-fouriers-law-of-thermal-conduction-definition\/\"><strong><span>la loi de Fourier<\/span><\/strong><\/a><span> s&rsquo;applique \u00e0 toute mati\u00e8re, quel que soit son \u00e9tat (solide, liquide ou gazeux), par cons\u00e9quent, elle est \u00e9galement d\u00e9finie pour les liquides et les gaz.<\/span><\/p>\n<p><span>La <\/span><a href=\"https:\/\/www.thermal-engineering.org\/what-is-thermal-conductivity-definition\/\"><strong><span>conductivit\u00e9 thermique<\/span><\/strong><\/a><span> de la plupart des liquides et des solides varie avec la temp\u00e9rature.\u00a0Pour les vapeurs, cela d\u00e9pend aussi de la pression.\u00a0En g\u00e9n\u00e9ral:<\/span><\/p>\n<p><a href=\"https:\/\/www.nuclear-power.com\/wp-content\/uploads\/2017\/10\/thermal-conductivity-definition.png\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter size-full wp-image-20041\" src=\"https:\/\/www.nuclear-power.com\/wp-content\/uploads\/2017\/10\/thermal-conductivity-definition.png\" alt=\"conductivit\u00e9 thermique - d\u00e9finition\" width=\"225\" height=\"75\" \/><\/a><\/p>\n<p><span>La plupart des mat\u00e9riaux sont presque homog\u00e8nes, nous pouvons donc g\u00e9n\u00e9ralement \u00e9crire <\/span><strong><span>k = k (T)<\/span><\/strong><span>.\u00a0Des d\u00e9finitions similaires sont associ\u00e9es aux conductivit\u00e9s thermiques dans les directions y et z (ky, kz), mais pour un mat\u00e9riau isotrope, la conductivit\u00e9 thermique est ind\u00e9pendante de la direction de transfert, kx = ky = kz = k.<\/span><\/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>alliages d&rsquo;aluminium<a href=\"https:\/\/www.nuclear-power.com\/nuclear-engineering\/metals-what-are-metals\/alloys-composition-properties-of-metal-alloys\/aluminium-alloys\/ \" class=\"su-button su-button-style-plat\" 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=\"ic\u00f4ne : 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>Propri\u00e9t\u00e9s thermiques des alliages d&rsquo;aluminium<\/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,\u00a0Propri\u00e9t\u00e9s thermiques des alliages d&rsquo;aluminium, 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>Quelles sont les propri\u00e9t\u00e9s thermiques des alliages d&#039;aluminium - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles<\/title>\n<meta name=\"description\" content=\"Propri\u00e9t\u00e9s thermiques des alliages d&#039;aluminium. 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La conductivit\u00e9 thermique de l&#039;alliage d&#039;aluminium 6061 est de 150 W\/(m.K).\" \/>\n<meta property=\"og:url\" content=\"https:\/\/material-properties.org\/fr\/quelles-sont-les-proprietes-thermiques-des-alliages-daluminium-definition\/\" \/>\n<meta property=\"og:site_name\" content=\"Material Properties\" \/>\n<meta property=\"article:published_time\" content=\"2022-05-11T04:28:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-05-17T11:29:22+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/material-properties.org\/wp-content\/uploads\/2020\/07\/aluminium-alloys-6061-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=\"6 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/material-properties.org\/fr\/quelles-sont-les-proprietes-thermiques-des-alliages-daluminium-definition\/\",\"url\":\"https:\/\/material-properties.org\/fr\/quelles-sont-les-proprietes-thermiques-des-alliages-daluminium-definition\/\",\"name\":\"Quelles sont les propri\u00e9t\u00e9s thermiques des alliages d'aluminium - D\u00e9finition | Propri\u00e9t\u00e9s mat\u00e9rielles\",\"isPartOf\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#website\"},\"datePublished\":\"2022-05-11T04:28:56+00:00\",\"dateModified\":\"2022-05-17T11:29:22+00:00\",\"author\":{\"@id\":\"https:\/\/material-properties.org\/fr\/#\/schema\/person\/e8c544db9afedaec8574d6464f9398bb\"},\"description\":\"Propri\u00e9t\u00e9s thermiques des alliages d'aluminium. Le point de fusion de l'alliage d'aluminium 6061 est d'environ 600\u00b0C. 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