{"id":37819,"date":"2023-06-02T09:20:11","date_gmt":"2023-06-02T07:20:11","guid":{"rendered":"https:\/\/cn.quintustechnologies.com\/knowledge-center\/ht-hip-titanium-aluminide-l-pbf\/"},"modified":"2025-09-12T12:06:36","modified_gmt":"2025-09-12T10:06:36","slug":"ht-hip-titanium-aluminide-l-pbf","status":"publish","type":"knowledge-center","link":"https:\/\/cn.quintustechnologies.com\/fr\/knowledge-center\/ht-hip-titanium-aluminide-l-pbf\/","title":{"rendered":"Influence du traitement thermique combin\u00e9 et de la pression isostatique \u00e0 chaud (HT-HIP) sur l&rsquo;aluminure de titane trait\u00e9 par L-PBF"},"content":{"rendered":"<p>Ce travail pr\u00e9sente une nouvelle strat\u00e9gie de post-traitement du L-PBF TiAl en appliquant un traitement thermique et un pressage isostatique \u00e0 chaud combin\u00e9s en un seul processus, \u00e0 savoir HT-HIP. Le processus comprend trois cycles avec des conditions diff\u00e9rentes (temp\u00e9rature, dur\u00e9e et pression). Ces conditions ont \u00e9t\u00e9 d\u00e9termin\u00e9es pour am\u00e9liorer la qualit\u00e9 et la microstructure des pi\u00e8ces. Les r\u00e9sultats montrent que les contraintes r\u00e9siduelles de traction ont diminu\u00e9, passant d&rsquo;un pic de 249 MPa dans l&rsquo;\u00e9chantillon tel que construit \u00e0 des contraintes de compression qui ont atteint un pic de -90 MPa apr\u00e8s le processus HT-HIP. Le nombre et la taille des d\u00e9fauts internes ont pu \u00eatre consid\u00e9rablement r\u00e9duits. Les d\u00e9fauts ont \u00e9t\u00e9 transform\u00e9s en une forme sph\u00e9rique r\u00e9guli\u00e8re, ce qui est bon en termes de r\u00e9sistance \u00e0 la fatigue. En outre, une microstructure duplex avec des colonies lamellaires 2\/ a pu \u00eatre introduite pour une meilleure ductilit\u00e9.      <\/p>\n","protected":false},"featured_media":32252,"menu_order":0,"template":"","knowledge-center_materials":[529,553],"knowledge-center_processes":[363,580],"knowledge-center_language":[135],"knowledge-center_type":[625],"knowledge-center_industry":[347,350,358,244],"knowledge-center_topic":[235],"class_list":["post-37819","knowledge-center","type-knowledge-center","status-publish","has-post-thumbnail","hentry","knowledge-center_materials-intermetallics-fr","knowledge-center_materials-titanium-alloy-fr","knowledge-center_processes-fabrication-additive","knowledge-center_processes-hip-et-traitement-thermique","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\/37819","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=37819"}],"wp:term":[{"taxonomy":"knowledge-center_materials","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_materials?post=37819"},{"taxonomy":"knowledge-center_processes","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_processes?post=37819"},{"taxonomy":"knowledge-center_language","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_language?post=37819"},{"taxonomy":"knowledge-center_type","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_type?post=37819"},{"taxonomy":"knowledge-center_industry","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_industry?post=37819"},{"taxonomy":"knowledge-center_topic","embeddable":true,"href":"https:\/\/cn.quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_topic?post=37819"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}