{"id":38937,"date":"2020-10-18T13:42:23","date_gmt":"2020-10-18T11:42:23","guid":{"rendered":"https:\/\/cn.quintustechnologies.com\/knowledge-center\/as-built-and-post-treated-microstructures-of-an-electron-beam-melting-ebm-produced-nickel-based-superalloy\/"},"modified":"2020-10-18T13:42:23","modified_gmt":"2020-10-18T11:42:23","slug":"as-built-and-post-treated-microstructures-of-an-electron-beam-melting-ebm-produced-nickel-based-superalloy","status":"publish","type":"knowledge-center","link":"https:\/\/cn.quintustechnologies.com\/fr\/knowledge-center\/as-built-and-post-treated-microstructures-of-an-electron-beam-melting-ebm-produced-nickel-based-superalloy\/","title":{"rendered":"Microstructures telles quelles et post-trait\u00e9es d&rsquo;un superalliage \u00e0 base de nickel produit par fusion par faisceau d&rsquo;\u00e9lectrons (EBM)"},"content":{"rendered":"<p>Les microstructures d&rsquo;un superalliage \u00e0 base de nickel fondu par faisceau d&rsquo;\u00e9lectrons (alliage 718) ont \u00e9t\u00e9 examin\u00e9es \u00e0 la fois dans des conditions de fabrication et de post-traitement, en se concentrant sur les r\u00e9gions de contour et de hachures de la fabrication. Les deux r\u00e9gions pr\u00e9sentaient une duret\u00e9 et une teneur en carbures similaires, mais la r\u00e9gion du contour avait une densit\u00e9 plus \u00e9lev\u00e9e de carbures fins. Les post-traitements, tels que le pressage isostatique \u00e0 chaud (HIP) et le HIP plus le traitement thermique (HIP + HT), ont r\u00e9duit de mani\u00e8re significative la teneur en d\u00e9fauts dans les deux r\u00e9gions. Un grossissement des grains s&rsquo;est produit dans la r\u00e9gion du contour apr\u00e8s HIP + HT. Diff\u00e9rents facteurs contribuant \u00e0 la croissance des grains ont \u00e9t\u00e9 examin\u00e9s, et les tailles de carbure sont devenues plus similaires apr\u00e8s le post-traitement. En outre, les deux r\u00e9gions ont montr\u00e9 une augmentation de la duret\u00e9 apr\u00e8s HIP + HT par rapport au mat\u00e9riau tel que construit.     <\/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-38937","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\/38937","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=38937"}],"wp:term":[{"taxonomy":"knowledge-center_materials","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_materials?post=38937"},{"taxonomy":"knowledge-center_processes","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_processes?post=38937"},{"taxonomy":"knowledge-center_language","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_language?post=38937"},{"taxonomy":"knowledge-center_type","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_type?post=38937"},{"taxonomy":"knowledge-center_industry","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_industry?post=38937"},{"taxonomy":"knowledge-center_topic","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_topic?post=38937"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}