{"id":38905,"date":"2020-01-29T13:24:00","date_gmt":"2020-01-29T12:24:00","guid":{"rendered":"https:\/\/quintustechnologies.com\/knowledge-center\/laser-beam-powder-bed-fusion-and-post-processing-of-alloy-247lc\/"},"modified":"2025-09-12T15:28:05","modified_gmt":"2025-09-12T13:28:05","slug":"laser-beam-powder-bed-fusion-and-post-processing-of-alloy-247lc","status":"publish","type":"knowledge-center","link":"https:\/\/quintustechnologies.com\/fr\/knowledge-center\/laser-beam-powder-bed-fusion-and-post-processing-of-alloy-247lc\/","title":{"rendered":"Fusion en lit de poudre par faisceau laser et post-traitement de l&rsquo;alliage 247LC"},"content":{"rendered":"<p>L&rsquo;alliage 247LC a tendance \u00e0 se fissurer au cours de la fabrication par fusion laser sur lit de poudre (PBF-LB), ce qui n\u00e9cessite un post-traitement pour la fermeture des fissures. Cette \u00e9tude examine des \u00e9chantillons fabriqu\u00e9s par PBF-LB et trait\u00e9s par pressage isostatique \u00e0 chaud (HIP), HIP + solution, et traitements thermiques de vieillissement. L&rsquo;analyse microstructurale r\u00e9v\u00e8le la pr\u00e9sence de fissures \u00e0 l&rsquo;\u00e9tat brut, \u00e9limin\u00e9es apr\u00e8s le HIP. Les microconstituants brillants entre les cellules sont attribu\u00e9s \u00e0 la s\u00e9paration du Hf et du Ta, formant des carbures. Des oxydes sont \u00e9galement observ\u00e9s. Les calculs thermodynamiques indiquent la formation rapide de pr\u00e9cipit\u00e9s ?&rsquo; en raison des concentrations \u00e9lev\u00e9es d&rsquo;Al et de Ta, en corr\u00e9lation avec la duret\u00e9 \u00e9lev\u00e9e dans l&rsquo;\u00e9tat de construction.<\/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":[347,358,351],"knowledge-center_topic":[235],"class_list":["post-38905","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-energie-et-stockage-de-lenergie","knowledge-center_industry-fournisseurs-de-services","knowledge-center_topic-material-densification-fr"],"acf":[],"_links":{"self":[{"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center\/38905","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center"}],"about":[{"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/types\/knowledge-center"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/media\/32252"}],"wp:attachment":[{"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/media?parent=38905"}],"wp:term":[{"taxonomy":"knowledge-center_materials","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_materials?post=38905"},{"taxonomy":"knowledge-center_processes","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_processes?post=38905"},{"taxonomy":"knowledge-center_language","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_language?post=38905"},{"taxonomy":"knowledge-center_type","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_type?post=38905"},{"taxonomy":"knowledge-center_industry","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_industry?post=38905"},{"taxonomy":"knowledge-center_topic","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_topic?post=38905"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}