{"id":7707,"date":"2018-05-17T12:46:13","date_gmt":"2018-05-17T11:46:13","guid":{"rendered":"http:\/\/dpubma.univ-annaba.dz\/?p=7707"},"modified":"2018-05-20T11:06:48","modified_gmt":"2018-05-20T10:06:48","slug":"effet-des-traitements-thermiques-sur-la-microstructure-et-les-proprietes-mecaniques-des-depots-de-zircone-stabilises-a-lyttrium-obtenus-par-projection-plasma","status":"publish","type":"post","link":"https:\/\/synthese.univ-annaba.dz\/?p=7707","title":{"rendered":"Effet des traitements thermiques sur la microstructure et les propri\u00e9t\u00e9s m\u00e9caniques des d\u00e9p\u00f4ts de Zircone stabilis\u00e9s \u00e0 l\u2019yttrium obtenus par projection plasma"},"content":{"rendered":"

Num\u00e9ro de la revue<\/strong>:\u00a036
\nAuteurs<\/strong>:\u00a0 \u00a0Fatma Zohra Bahroun\u00a0& Mohamed ZineTouhami<\/p>\n

Facult\u00e9 des sciences de l\u2019ing\u00e9nieur, D\u00e9partement de m\u00e9tallurgie et g\u00e9nie des mat\u00e9riaux<\/em><\/p>\n

Laboratoire de Recherche de Fonderie, Universit\u00e9 Badji Mokhtar, BP12, 23000, \u00a0Annaba, Alg\u00e9rie.<\/em><\/p>\n

Soumis le\u00a0: 14\/05\/2017\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0R\u00e9vis\u00e9 le\u00a0: 04\/12\/2017\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Accept\u00e9 le\u00a0: 07\/12\/2017<\/em><\/span><\/p>\n

 <\/p>\n

T\u00e9l\u00e9charger l’article\"p2\"<\/strong><\/a><\/p>\n

 <\/p>\n

R\u00e9sum\u00e9 <\/strong><\/p>\n

Cette \u00e9tude a pour objectif de d\u00e9poser des rev\u00eatements de zircone stabilis\u00e9e par l\u2019oxyde d\u2019yttrium utilisant la projection thermique par plasma atmosph\u00e9rique et d\u2019\u00e9tudier l\u2019effet des traitements thermiques sur la microstructure et les propri\u00e9t\u00e9s m\u00e9caniques de ces d\u00e9p\u00f4ts.Le rev\u00eatement qui sert comme barri\u00e8re thermique a \u00e9t\u00e9 d\u00e9pos\u00e9 sur un acier inoxydable ferritiquesde type 410S.Au pr\u00e9alable, nous avons caract\u00e9ris\u00e9 ces d\u00e9p\u00f4ts en s\u2019int\u00e9ressant \u00e0 la constitution du d\u00e9p\u00f4t, la nature des phases, la morphologie, la porosit\u00e9, ainsi qu\u2019aux propri\u00e9t\u00e9s m\u00e9caniques.<\/p>\n

Des essais de chocs thermiques et de vieillissement ont \u00e9t\u00e9 appliqu\u00e9s aux d\u00e9p\u00f4ts dont le but de tester leurs performances et les ph\u00e9nom\u00e8nes m\u00e9tallurgiques qui peuvent appara\u00eetre comme la fissuration, l\u2019\u00e9caillage et \u00e9ventuellement \u00a0d\u2019autres types de d\u00e9gradation. Les essais de chocs thermiques ont \u00e9t\u00e9 r\u00e9alis\u00e9s \u00e0 atmosph\u00e8re oxydante \u00e0 des temp\u00e9ratures de 950 \u00b0C et 1050\u00b0C durant 20 minutes, puis tremp\u00e9s \u00e9nergiquement. Pour mieux \u00e9lucider l\u2019\u00e9volution des phases et l\u2019architecture poreuse des rev\u00eatements lors de leur mise en service, les d\u00e9p\u00f4ts ont subi des traitements thermiques de vieillissement \u00e0 1100\u00b0C \u00e0 des temps allant de 10h, 20h et 40h puis refroidis \u00e0 l\u2019air. L\u2019\u00e9volution de la microstructure, les propri\u00e9t\u00e9s m\u00e9caniques ainsi que les ph\u00e9nom\u00e8nes m\u00e9tallurgiques ont \u00e9t\u00e9 suivies respectivement en utilisant la microscopie optique, la microscopie \u00e9lectronique \u00e0 balayage, la diffraction des rayons X ainsi que la nano indentation.<\/p>\n

Mots-cl\u00e9s\u00a0: <\/strong>Barri\u00e8re thermique- Zircone Yttri\u00e9e- Projection plasma- Essais thermiques et de vieillissement-Propri\u00e9t\u00e9s m\u00e9caniques.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"

Num\u00e9ro de la revue:\u00a036 Auteurs:\u00a0 \u00a0Fatma Zohra Bahroun\u00a0& Mohamed ZineTouhami Facult\u00e9 des sciences de l\u2019ing\u00e9nieur, D\u00e9partement de m\u00e9tallurgie et g\u00e9nie des mat\u00e9riaux Laboratoire de Recherche de Fonderie, Universit\u00e9 Badji Mokhtar, BP12, 23000, \u00a0Annaba, Alg\u00e9rie. Soumis le\u00a0: 14\/05\/2017\u00a0 \u00a0 \u00a0 \u00a0 … Lire la suite »<\/span><\/a><\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1248],"tags":[1285],"class_list":["post-7707","post","type-post","status-publish","format-standard","hentry","category-synthese-n-36","tag-barriere-thermique-zircone-yttriee-projection-plasma-essais-thermiques-et-de-vieillissement-proprietes-mecaniques"],"_links":{"self":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/7707","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7707"}],"version-history":[{"count":4,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/7707\/revisions"}],"predecessor-version":[{"id":7762,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=\/wp\/v2\/posts\/7707\/revisions\/7762"}],"wp:attachment":[{"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7707"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7707"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/synthese.univ-annaba.dz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7707"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}