{"id":729,"date":"2025-06-17T08:07:48","date_gmt":"2025-06-17T08:07:48","guid":{"rendered":"https:\/\/dura-alloy.com\/?post_type=product&p=729"},"modified":"2025-06-17T08:07:48","modified_gmt":"2025-06-17T08:07:48","slug":"gh3128","status":"publish","type":"product","link":"https:\/\/www.dura-alloy.com\/fr\/produit\/gh3128\/","title":{"rendered":"GH3128"},"content":{"rendered":"

\u00c9tendue de la fourniture pour le groupe Aviation<\/span><\/strong><\/p>\n

Pi\u00e8ces forg\u00e9es, barres rondes, plaques d'acier, anneaux, tuyaux sans soudure, plaques d'acier\/courroies d'acier, mat\u00e9riaux de soudage par fil, n'h\u00e9sitez pas \u00e0 nous contacter !<\/span><\/strong><\/p>\n

1.\u00a0<\/span><\/strong>Introduction aux mat\u00e9riaux GH3128<\/span><\/strong>\u00a0<\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 Le GH3128 (GH128) est un alliage \u00e0 base de nickel qui utilise du tungst\u00e8ne et du molybd\u00e8ne pour renforcer la solution solide et qui renforce les joints de grains avec du bore, du c\u00e9rium et du zirconium. Il pr\u00e9sente une plasticit\u00e9 \u00e9lev\u00e9e, une r\u00e9sistance \u00e9lev\u00e9e au fluage \u00e0 long terme, une bonne r\u00e9sistance \u00e0 l'oxydation et des propri\u00e9t\u00e9s d'emboutissage et de soudage. Ses performances globales sont sup\u00e9rieures \u00e0 celles d'alliages similaires \u00e0 base de nickel, tels que GH3044 et GH3536. Il convient au cylindre \u00e0 flamme de la chambre de combustion, \u00e0 l'enveloppe de la chambre de combustion de la postcombustion, \u00e0 la t\u00f4le d'ajustement et \u00e0 d'autres pi\u00e8ces \u00e0 haute temp\u00e9rature des moteurs d'avion qui travaillent \u00e0 950\u00b0C pendant une longue p\u00e9riode. Les principaux produits sont des t\u00f4les minces lamin\u00e9es \u00e0 froid, et des t\u00f4les, barres, pi\u00e8ces forg\u00e9es, fils et tuyaux lamin\u00e9s \u00e0 chaud peuvent \u00e9galement \u00eatre fournis.<\/span><\/p>\n

2. Norme de mise en \u0153uvre GH3128<\/span><\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 GB\/T14992-2005 \"Classification and Grade of High Temperature Materials of High Temperature Alloys and Intermetallic Compounds\" (Classification et qualit\u00e9 des mat\u00e9riaux \u00e0 haute temp\u00e9rature, des alliages \u00e0 haute temp\u00e9rature et des compos\u00e9s interm\u00e9talliques)<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 GB\/T14995-2005 \"Plaque lamin\u00e9e \u00e0 chaud en alliage \u00e0 haute temp\u00e9rature\".<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 GB\/T14996-2005 \"Plaque mince lamin\u00e9e \u00e0 froid en alliage haute temp\u00e9rature\".<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 GJB1952A \"Sp\u00e9cifications pour les t\u00f4les minces lamin\u00e9es \u00e0 froid en alliages \u00e0 haute temp\u00e9rature pour l'aviation\".<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 GJB2612 \"Sp\u00e9cifications pour l'\u00e9tirage \u00e0 froid des alliages \u00e0 haute temp\u00e9rature pour le soudage\".<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 GJB3317A \"Sp\u00e9cifications pour les t\u00f4les lamin\u00e9es \u00e0 chaud en alliages a\u00e9ronautiques \u00e0 haute temp\u00e9rature\".<\/span><\/p>\n

3.\u00a0<\/span><\/strong>Composition chimique de GH3128<\/span><\/strong>\u00a0<\/strong><\/p>\n\n\n\n\n\n
alliage\u00a0<\/span><\/td>\n%<\/td>\nEn<\/span><\/td>\nCr<\/td>\nFe<\/td>\nMo<\/td>\nW<\/td>\nC<\/td>\nMn<\/td>\nEt<\/span><\/td>\nS<\/td>\nP<\/td>\nAl<\/td>\nDe<\/span><\/td>\n<\/tr>\n
Gh3128<\/span><\/td>\nValeur minimale<\/span><\/td>\nmarge<\/span><\/td>\n19.00<\/td>\n–<\/td>\n7.5<\/td>\n7.5<\/span><\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n–<\/span><\/td>\n0.40<\/td>\n0.40<\/span><\/td>\n<\/tr>\n
Valeur maximale<\/span><\/td>\n22.00<\/td>\n0.20<\/td>\n9.0<\/td>\n9.0<\/span><\/td>\n0.05<\/td>\n0.50<\/td>\n0.80<\/td>\n0.013<\/td>\n0.013<\/span><\/td>\n0.80<\/span><\/td>\n0.80<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

3. GH3128\u00a0<\/span><\/strong>propri\u00e9t\u00e9s physiques<\/span><\/strong>\u00a0<\/strong><\/p>\n\n\n\n\n\n
densit\u00e9\u00a0<\/span><\/td>\nPoint de fusion\u00a0<\/span><\/td>\nConductivit\u00e9 thermique\u00a0<\/span><\/td>\nCapacit\u00e9 thermique sp\u00e9cifique\u00a0<\/span><\/td>\nModule d'\u00e9lasticit\u00e9\u00a0<\/span><\/td>\nModule de cisaillement\u00a0<\/span><\/td>\nR\u00e9sistivit\u00e9\u00a0<\/span><\/td>\nCoefficient de dilatation lin\u00e9aire\u00a0<\/span><\/td>\n<\/tr>\n
g \/ cm3<\/span><\/td>\n\u2103<\/td>\nL\/(W\/M - \u2103)<\/span><\/td>\nJ\/kg-\u2103<\/td>\nGPa<\/td>\nGPa<\/span><\/td>\n\u03bc\u03a9-m<\/td>\na\/10-6\u2103-1<\/td>\n<\/tr>\n
8.81<\/td>\n1340-1390<\/td>\n11.3(100\u2103)<\/td>\n <\/td>\n208<\/td>\n <\/td>\n1.37<\/td>\n11.25(20~100\u2103)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0 \u00a0 \u00a0 \u00c9tat de la solution solide, propri\u00e9t\u00e9s m\u00e9caniques de l'alliage \u00e0 temp\u00e9rature ambiante :<\/span><\/strong>\u00a0<\/strong><\/p>\n\n\n\n\n
Statut de l'alliage<\/span><\/td>\nR\u00e9sistance \u00e0 la traction<\/span>
\n\u00a0\u00a0\u03c3b (Mpa)<\/span><\/td>\n		\u00c9longation<\/span>
\n\u00a0 A5 %<\/span><\/td>\n<\/tr>\n
\u00c9tat de la solution solide<\/span><\/td>\n\u2265735<\/td>\n\u226540<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

IV. Caract\u00e9ristiques du mat\u00e9riau GH3128<\/span><\/strong>\u00a0<\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 Cet alliage est un alliage \u00e0 base de nickel qui utilise du tungst\u00e8ne et du molybd\u00e8ne pour renforcer la solution solide et qui renforce les joints de grains avec du bore, du c\u00e9rium et du zirconium. Il pr\u00e9sente une plasticit\u00e9 \u00e9lev\u00e9e, une r\u00e9sistance \u00e9lev\u00e9e au fluage \u00e0 long terme et de bonnes propri\u00e9t\u00e9s d'oxydation, d'emboutissage et de soudage. Ses performances globales sont sup\u00e9rieures \u00e0 celles d'alliages similaires en solution solide \u00e0 base de nickel tels que GH3044 et GH3536.<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 L'alliage a une structure d'aust\u00e9nite monophas\u00e9e \u00e0 l'\u00e9tat de solution solide et contient une petite quantit\u00e9 de TiN et de M6C finement et uniform\u00e9ment r\u00e9partie.<\/span><\/p>\n

\u00a0<\/strong>V. Performances et exigences du processus GH3128<\/span><\/strong>\u00a0<\/strong><\/p>\n

\u00a0 \u00a0 \u00a01. La temp\u00e9rature du four de mode de forgeage de lingot d'acier ne doit pas \u00eatre sup\u00e9rieure \u00e0 700\u2103, et la temp\u00e9rature finale de forgeage doit \u00eatre sup\u00e9rieure \u00e0 900\u2103.<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 2. La taille moyenne des grains de l'alliage est \u00e9troitement li\u00e9e au degr\u00e9 de d\u00e9formation du forgeage et \u00e0 la temp\u00e9rature finale du forgeage.<\/span><\/p>\n

\u00a0 \u00a0 \u00a03. L'alliage GH3128 peut \u00eatre soud\u00e9 \u00e0 l'arc sous argon, par points, \u00e0 la molette et par d'autres m\u00e9thodes.<\/span><\/p>\n

\u00a0<\/strong>6. Champs d'application du GH3128<\/span><\/strong>\u00a0<\/strong><\/p>\n

\u00a0 \u00a0 \u00a0 1. Cylindre de flamme de la chambre de combustion d'un moteur d'avion<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 2. Composants structurels de la chambre de combustion de la turbine \u00e0 gaz<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 3. Composants de la chambre de combustion d'un moteur \u00e0 turbine<\/span><\/p>\n

\u00a0 \u00a0 \u00a0 4. Pi\u00e8ces de la chambre de combustion de postcombustion, bo\u00eetier de la chambre de combustion de postcombustion, plaque de r\u00e9glage<\/span><\/p>","protected":false},"excerpt":{"rendered":"

Scope of supply for Aviation Group Forgings, round rods, steel plates, rings, seamless pipes, steel plates\/steel belts, wire welding materials, […]<\/p>","protected":false},"featured_media":730,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[],"product_cat":[16],"product_tag":[],"class_list":{"0":"post-729","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-high-temperature-alloy","7":"desktop-align-left","8":"tablet-align-left","9":"mobile-align-left","11":"first","12":"instock","13":"shipping-taxable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product\/729","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"version-history":[{"count":0,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product\/729\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/media\/730"}],"wp:attachment":[{"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/media?parent=729"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product_brand?post=729"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product_cat?post=729"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.dura-alloy.com\/fr\/wp-json\/wp\/v2\/product_tag?post=729"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}