{"id":37949,"date":"2024-09-24T09:02:01","date_gmt":"2024-09-24T07:02:01","guid":{"rendered":"https:\/\/quintustechnologies.com\/knowledge-center\/effect-hip-porosity-wire-arc\/"},"modified":"2024-09-24T09:02:01","modified_gmt":"2024-09-24T07:02:01","slug":"effect-hip-porosity-wire-arc","status":"publish","type":"knowledge-center","link":"https:\/\/quintustechnologies.com\/fr\/knowledge-center\/effect-hip-porosity-wire-arc\/","title":{"rendered":"Effet du pressage isostatique \u00e0 chaud sur la porosit\u00e9 de la structure bim\u00e9tallique TZM\/NbZr1 d\u00e9pos\u00e9e par arc \u00e9lectrique dirig\u00e9"},"content":{"rendered":"<p>Cette \u00e9tude a examin\u00e9 l&rsquo;efficacit\u00e9 du pressage isostatique \u00e0 chaud (HIP) pour r\u00e9duire la porosit\u00e9 des structures bim\u00e9talliques TZM-NbZr1 produites par d\u00e9p\u00f4t d&rsquo;\u00e9nergie dirig\u00e9e (DED) \u00e0 l&rsquo;arc \u00e9lectrique. Diff\u00e9rentes conditions de pressage isostatique \u00e0 chaud et une combinaison de pressage isostatique \u00e0 chaud et de traitement thermique ont \u00e9t\u00e9 \u00e9valu\u00e9es. La porosit\u00e9 a diminu\u00e9 de 4% \u00e0 l&rsquo;\u00e9tat brut \u00e0 3,05% \u00e0 1200\u00b0C et 1% \u00e0 1500\u00b0C, avec une r\u00e9duction suppl\u00e9mentaire \u00e0 0,01% apr\u00e8s un HIP \u00e0 1800\u00b0C suivi d&rsquo;un HT. La d\u00e9formation plastique a influenc\u00e9 la taille et la forme des pores, les temp\u00e9ratures plus basses provoquant des microfissures, tandis que le processus combin\u00e9 HIP et HT a \u00e9limin\u00e9 les fissures et la porosit\u00e9 par recristallisation dynamique. Des temp\u00e9ratures plus \u00e9lev\u00e9es ont \u00e9galement favoris\u00e9 la diffusion du Mo du TZM vers le NbZr1.    <\/p>\n","protected":false},"featured_media":32252,"menu_order":0,"template":"","knowledge-center_materials":[579],"knowledge-center_processes":[363,580],"knowledge-center_language":[135],"knowledge-center_type":[625],"knowledge-center_industry":[347,350,356,244],"knowledge-center_topic":[235],"class_list":["post-37949","knowledge-center","type-knowledge-center","status-publish","has-post-thumbnail","hentry","knowledge-center_materials-materiaux-refractaires","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-domaine-medical","knowledge-center_industry-space-fr","knowledge-center_topic-material-densification-fr"],"acf":[],"_links":{"self":[{"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center\/37949","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=37949"}],"wp:term":[{"taxonomy":"knowledge-center_materials","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_materials?post=37949"},{"taxonomy":"knowledge-center_processes","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_processes?post=37949"},{"taxonomy":"knowledge-center_language","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_language?post=37949"},{"taxonomy":"knowledge-center_type","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_type?post=37949"},{"taxonomy":"knowledge-center_industry","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_industry?post=37949"},{"taxonomy":"knowledge-center_topic","embeddable":true,"href":"https:\/\/quintustechnologies.com\/fr\/wp-json\/wp\/v2\/knowledge-center_topic?post=37949"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}