{"id":39421,"date":"2021-05-28T13:46:29","date_gmt":"2021-05-28T11:46:29","guid":{"rendered":"https:\/\/cn.quintustechnologies.com\/knowledge-center\/microstructure-evolution-and-mechanical-response-based-shortening-of-thermal-post-treatment-for-electron-beam-melting-ebm-produced-alloy-718\/"},"modified":"2021-05-28T13:46:29","modified_gmt":"2021-05-28T11:46:29","slug":"microstructure-evolution-and-mechanical-response-based-shortening-of-thermal-post-treatment-for-electron-beam-melting-ebm-produced-alloy-718","status":"publish","type":"knowledge-center","link":"https:\/\/cn.quintustechnologies.com\/fr\/knowledge-center\/microstructure-evolution-and-mechanical-response-based-shortening-of-thermal-post-treatment-for-electron-beam-melting-ebm-produced-alloy-718\/","title":{"rendered":"Evolution de la microstructure et raccourcissement bas\u00e9 sur la r\u00e9ponse m\u00e9canique du post-traitement thermique pour l&rsquo;alliage 718 produit par fusion par faisceau d&rsquo;\u00e9lectrons (EBM)"},"content":{"rendered":"<p>L&rsquo;alliage 718 fondu par faisceau d&rsquo;\u00e9lectrons (EBM) a subi des post-traitements comprenant un pressage isostatique \u00e0 chaud (HIPing) et un traitement thermique (HT). Le pressage isostatique \u00e0 chaud \u00e0 1120\u00b0C a entra\u00een\u00e9 une densification significative, tandis que l&rsquo;\u00e9volution de la microstructure pendant le traitement thermique a sugg\u00e9r\u00e9 la possibilit\u00e9 de raccourcir la dur\u00e9e du processus. Le vieillissement en deux \u00e9tapes pourrait \u00e9ventuellement \u00eatre r\u00e9duit du cycle long standard \u00e0 un cycle plus court (4 h + 1 h). L&rsquo;int\u00e9gration de l&rsquo;HIP avec l&rsquo;HT \u00e0 l&rsquo;int\u00e9rieur de la cuve HIP a \u00e9galement \u00e9t\u00e9 couronn\u00e9e de succ\u00e8s. Le comportement \u00e0 la traction a \u00e9t\u00e9 principalement affect\u00e9 par le traitement de vieillissement. Le raccourcissement de la dur\u00e9e du HIP et l&rsquo;\u00e9limination du traitement en solution peuvent permettre de rationaliser davantage le processus de post-traitement. Le traitement thermique suivant le HIPing \u00e9tait crucial pour am\u00e9liorer la dur\u00e9e de vie en fatigue, car la seule HT, quelle que soit la dur\u00e9e du cycle, a produit une r\u00e9ponse en fatigue inf\u00e9rieure dans l&rsquo;alliage EBM 718.      <\/p>\n","protected":false},"featured_media":32252,"menu_order":0,"template":"","knowledge-center_materials":[523],"knowledge-center_processes":[363],"knowledge-center_language":[135],"knowledge-center_type":[625],"knowledge-center_industry":[347,350,358,244],"knowledge-center_topic":[235],"class_list":["post-39421","knowledge-center","type-knowledge-center","status-publish","has-post-thumbnail","hentry","knowledge-center_materials-super-alloy-fr","knowledge-center_processes-fabrication-additive","knowledge-center_language-english","knowledge-center_type-publication-technique","knowledge-center_industry-aeronautique","knowledge-center_industry-defense","knowledge-center_industry-energie-et-stockage-de-lenergie","knowledge-center_industry-space-fr","knowledge-center_topic-material-densification-fr"],"acf":[],"_links":{"self":[{"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center\/39421","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center"}],"about":[{"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/types\/knowledge-center"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/media\/32252"}],"wp:attachment":[{"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/media?parent=39421"}],"wp:term":[{"taxonomy":"knowledge-center_materials","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_materials?post=39421"},{"taxonomy":"knowledge-center_processes","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_processes?post=39421"},{"taxonomy":"knowledge-center_language","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_language?post=39421"},{"taxonomy":"knowledge-center_type","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_type?post=39421"},{"taxonomy":"knowledge-center_industry","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_industry?post=39421"},{"taxonomy":"knowledge-center_topic","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_topic?post=39421"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}