{"id":3875,"date":"2024-03-18T06:10:10","date_gmt":"2024-03-18T06:10:10","guid":{"rendered":"https:\/\/3dp.45612300.xyz\/product\/best-in738-powder-for-3d-printing-in-2023\/"},"modified":"2024-03-18T06:10:10","modified_gmt":"2024-03-18T06:10:10","slug":"best-in738-powder-for-3d-printing-in-2023","status":"publish","type":"product","link":"https:\/\/3dpmetal.com\/fr\/product\/best-in738-powder-for-3d-printing-in-2023\/","title":{"rendered":"La meilleure poudre IN738 pour l'impression 3D en 2023"},"content":{"rendered":"

<\/p>\n

Overview of IN738 Powder for 3D Printing<\/strong><\/h2>\n

IN738 is a nickel-based superalloy powder that is widely used for additive manufacturing of high-performance metal parts. It combines excellent mechanical properties at high temperatures with processability, making it an ideal choice for 3D printingaerospace and industrial components.<\/p>\n

This article provides a comprehensive guide to IN738 alloy powder for 3D printing applications. It covers composition, properties, print parameters, applications, specifications, suppliers, handling, inspection, comparisons, pros and cons, and frequently asked questions about IN738 powder. Key information is presented in easy-to-reference tables.<\/p>\n

Composition of IN738 Powder<\/strong><\/h3>\n

IN738 has a precipitation hardening alloy composition containing various solute elements:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u00e9l\u00e9ment<\/th>\n% en poids<\/th>\nObjectif<\/th>\n<\/tr>\n<\/thead>\n
Nickel<\/td>\n\u00c9quilibre<\/td>\nMatrix element provides corrosion resistance<\/td>\n<\/tr>\n
Chromium<\/td>\n15 – 17<\/td>\nR\u00e9sistance \u00e0 l'oxydation<\/td>\n<\/tr>\n
Aluminium<\/td>\n3.4 – 4.4<\/td>\nDurcissement structural<\/td>\n<\/tr>\n
Titane<\/td>\n3.2 – 4.2<\/td>\nDurcissement structural<\/td>\n<\/tr>\n
Fer<\/td>\n12.5 max<\/td>\nRenforcement de la solution solide<\/td>\n<\/tr>\n
Cobalt<\/td>\n8.5 – 10<\/td>\nRenforcement de la solution solide<\/td>\n<\/tr>\n
Molybd\u00e8ne, molybd\u00e8ne<\/td>\n1.5 – 2.5<\/td>\nCreep strengthening<\/td>\n<\/tr>\n
Tantale<\/td>\n1 – 2<\/td>\nDurcissement structural<\/td>\n<\/tr>\n
Carbone<\/td>\n0.11 max<\/td>\nForme en carbure<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Trace amounts of boron, zirconium and magnesium are also added for grain structure control.<\/p>\n

Properties of IN738 Powder<\/strong><\/h3>\n

IN738 exhibits the following key properties:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Propri\u00e9t\u00e9 immobili\u00e8re<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
haute r\u00e9sistance<\/td>\nExcellent tensile and creep rupture strength up to 750\u00a1\u00abC<\/td>\n<\/tr>\n
Stabilit\u00e9 thermique<\/td>\nStrength and hardness maintained up to 700\u00a1\u00abC<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 l'oxydation<\/td>\nForms protective Cr2O3 oxide scale<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la fatigue thermique<\/td>\nR\u00e9siste \u00e0 la fissuration pendant les cycles thermiques<\/td>\n<\/tr>\n
R\u00e9sistance \u00e0 la corrosion<\/td>\nHigh resistance to hot corrosion and oxidation<\/td>\n<\/tr>\n
Transformabilit\u00e9<\/td>\nReadily weldable using matching filler material<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The properties make it suitable for hot section aerospace components exposed to extreme stresses.<\/p>\n

3D Printing Parameters for IN738 Powder<\/strong><\/h3>\n

Optimized print parameters are needed to process IN738 powder:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Param\u00e8tre<\/th>\nValeur typique<\/th>\nObjectif<\/th>\n<\/tr>\n<\/thead>\n
Layer thickness<\/td>\n20-50 \u00b5m<\/td>\nThinner layers improve resolution<\/td>\n<\/tr>\n
Puissance du laser<\/td>\n180-500 W<\/td>\nMelting condition without evaporation<\/td>\n<\/tr>\n
Vitesse de balayage<\/td>\n800-1600 mm\/s<\/td>\nBalances density and build time<\/td>\n<\/tr>\n
Espacement des trappes<\/td>\n50-200 \u00c3\u00d7m<\/td>\nDensit\u00e9 et propri\u00e9t\u00e9s m\u00e9caniques<\/td>\n<\/tr>\n
Structure de soutien<\/td>\nMinime<\/td>\nEase of removal, surface finish<\/td>\n<\/tr>\n
Inert gas<\/td>\nArgon<\/td>\nPrevent oxidation during printing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Parameter selection depends on factors like build geometry, mechanical requirements, surface finish needs and orientation.<\/p>\n

Applications of 3D Printed IN738 Parts<\/strong><\/h3>\n

Additively manufactured IN738 components serve critical applications in:<\/p>\n\n\n\n\n\n\n\n\n
Industrie<\/th>\nComposantes<\/th>\n<\/tr>\n<\/thead>\n
A\u00e9rospatial<\/td>\nTurbine blades, combustors, exhaust parts<\/td>\n<\/tr>\n
Production d'\u00e9lectricit\u00e9<\/td>\nHot gas path parts, heat exchangers<\/td>\n<\/tr>\n
Automobile<\/td>\nTurbocharger wheels, valves<\/td>\n<\/tr>\n
Traitement chimique<\/td>\nPumps, valves, casings<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Benefits over cast\/wrought IN738 include complex geometries, reduced lead time and buy-to-fly ratio.<\/p>\n

Specifications of IN738 Powder for 3D Printing<\/strong><\/h3>\n

IN738 powder is commercially available meeting composition and quality specifications:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
Param\u00e8tre<\/th>\nSp\u00e9cification<\/th>\n<\/tr>\n<\/thead>\n
Plage de granulom\u00e9trie<\/td>\n15-45 \u00c3\u00d7m typique<\/td>\n<\/tr>\n
Forme des particules<\/td>\nMorphologie sph\u00e9rique<\/td>\n<\/tr>\n
Densit\u00e9 apparente<\/td>\n> 4 g\/cc<\/td>\n<\/tr>\n
Densit\u00e9 de tassement<\/td>\n> 6 g\/cc<\/td>\n<\/tr>\n
D\u00e9bit de hall<\/td>\n> 23 secondes pour 50 g<\/td>\n<\/tr>\n
Puret\u00e9<\/td>\n>99,9%<\/td>\n<\/tr>\n
Teneur en oxyg\u00e8ne<\/td>\n<300 ppm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Other size ranges, purities, and tighter tolerances are possible for specific applications.<\/p>\n

Suppliers of IN738 Powder<\/strong><\/h3>\n

Reputable IN738 powder vendors include:<\/p>\n\n\n\n\n\n\n\n\n\n\n
Fournisseur<\/th>\nLieu<\/th>\n<\/tr>\n<\/thead>\n
Praxair<\/td>\n\u00c9tats-Unis<\/td>\n<\/tr>\n
Carpenter Powder Products<\/td>\n\u00c9tats-Unis<\/td>\n<\/tr>\n
Sandvik Osprey<\/td>\nRoyaume-Uni<\/td>\n<\/tr>\n
Erasteel<\/td>\nLa Su\u00e8de<\/td>\n<\/tr>\n
AMETEK<\/td>\n\u00c9tats-Unis<\/td>\n<\/tr>\n
Technologie LPW<\/td>\nRoyaume-Uni<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Pricing ranges from $90\/kg to $220\/kg based on quality, size distribution and order quantity.<\/p>\n

Handling and Storage of IN738 Powder<\/strong><\/h3>\n

As a reactive metal, IN738 powder requires controlled handling:<\/p>\n

    \n
  • Store sealed containers in a cool, dry inert gas environment<\/li>\n
  • Avoid contact with moisture, acids and oxidizing agents<\/li>\n
  • Use conductive containers and transfer equipment<\/li>\n
  • Mettre l'\u00e9quipement \u00e0 la terre pour dissiper les charges statiques<\/li>\n
  • Minimize dust generation and accumulation<\/li>\n
  • Une ventilation locale par aspiration est recommand\u00e9e<\/li>\n
  • Respecter les pr\u00e9cautions de la fiche de donn\u00e9es de s\u00e9curit\u00e9<\/li>\n<\/ul>\n

    Proper storage and handling prevents property changes or hazards.<\/p>\n

    Inspection and Testing of IN738 Powder<\/strong><\/h3>\n

    Quality testing methods for IN738 powder include:<\/p>\n\n\n\n\n\n\n\n\n\n\n\n
    M\u00e9thode<\/th>\nParam\u00e8tres test\u00e9s<\/th>\n<\/tr>\n<\/thead>\n
    Analyse granulom\u00e9trique<\/td>\nDistribution de la taille des particules<\/td>\n<\/tr>\n
    Diffraction laser<\/td>\nDistribution de la taille des particules<\/td>\n<\/tr>\n
    Imagerie MEB<\/td>\nParticle morphology and microstructure<\/td>\n<\/tr>\n
    EDX\/XRF<\/td>\nChimie et composition<\/td>\n<\/tr>\n
    XRD<\/td>\nPhases pr\u00e9sentes<\/td>\n<\/tr>\n
    Pycnom\u00e9trie<\/td>\nDensit\u00e9<\/td>\n<\/tr>\n
    D\u00e9bit de hall<\/td>\nCoulance des poudres<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    Testing as per applicable ASTM standards ensures batch-to-batch consistency.<\/p>\n

    Comparing IN738 to Alternative Alloy Powders<\/strong><\/h3>\n

    IN738 compares to other Ni-based superalloys as:<\/p>\n\n\n\n\n\n\n\n\n
    Alliage<\/th>\nR\u00e9sistance \u00e0 l'oxydation<\/th>\nCo\u00fbt<\/th>\nImprimabilit\u00e9<\/th>\nSoudabilit\u00e9<\/th>\n<\/tr>\n<\/thead>\n
    IN738<\/td>\nExcellent<\/td>\nMoyen<\/td>\nExcellent<\/td>\nBien<\/td>\n<\/tr>\n
    IN718<\/td>\nMoyen<\/td>\nBas<\/td>\nFoire<\/td>\nExcellent<\/td>\n<\/tr>\n
    Haynes 282<\/td>\nExcellent<\/td>\nTr\u00e8s haut<\/td>\nBien<\/td>\nLimit\u00e9e<\/td>\n<\/tr>\n
    Inconel 625<\/td>\nBien<\/td>\nMoyen<\/td>\nExcellent<\/td>\nExcellent<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    For printability and performance, IN738 provides the best balance compared to alternatives like IN718 or Haynes 282.<\/p>\n

    Pros and Cons of IN738 Powder<\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n
    * N\u00e9cessaire pour les personnes qui ont des probl\u00e8mes de mobilit\u00e9\n* Peut \u00eatre utilis\u00e9 pour le transport de marchandises\n* Peut \u00eatre utilis\u00e9 pour les loisirs, comme le camping\n* Peut \u00eatre utilis\u00e9 pour explorer des zones recul\u00e9es\n* Peut \u00eatre utilis\u00e9 pour les livraisons de nourriture\n* Peut \u00eatre utilis\u00e9 pour les services de messagerie\n* Peut \u00eatre utilis\u00e9 pour les services de s\u00e9curit\u00e9\n* Peut \u00eatre utilis\u00e9 pour les services d'urgence\n* Peut \u00eatre utilis\u00e9 pour les op\u00e9rations militaires\n\nCons\n\n* Peut \u00eatre cher \u00e0 l'achat\n* Peut \u00eatre cher \u00e0 entretenir\n* Peut \u00eatre difficile \u00e0 conduire dans des espaces confin\u00e9s\n* Peut \u00eatre difficile \u00e0 garer\n* Peut \u00eatre bruyant\n* Peut \u00eatre polluant<\/th>\nInconv\u00e9nients<\/th>\n<\/tr>\n<\/thead>\n
    Excellent strength and oxidation resistance at high temperatures<\/td>\nMore expensive than IN718 alloy powder<\/td>\n<\/tr>\n
    Readily weldable using matching filler<\/td>\nLower room temperature tensile ductility<\/td>\n<\/tr>\n
    Widely validated for AM processes<\/td>\nRequires hot isostatic pressing to relieve stresses<\/td>\n<\/tr>\n
    Performance comparable\/superior to cast IN738<\/td>\nControlled atmosphere storage and handling needed<\/td>\n<\/tr>\n
    G\u00e9om\u00e9tries complexes possibles<\/td>\nLimited high temperature creep strength<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    IN738 enables outstanding performance for critical hot section parts but is costlier than other Ni-superalloy options.<\/p>\n

    Frequently Asked Questions about IN738 Powder for 3D Printing<\/strong><\/h2>\n

    Here are some common FAQs about IN738 powder:<\/p>\n

    Q: What particle size is recommended for printing IN738?<\/strong><\/p>\n

    A: 15-45 microns is the typical size range used, providing good flowability along with high resolution and density. Finer particles below 10 microns can improve density and surface finish.<\/p>\n

    Q: What makes IN738 suitable for 3D printing?<\/strong><\/p>\n

    A: Key factors are its printability, mechanical properties, weldability, and prior usage in conventional processes that aid validation. IN738 was designed for wrought processing, making it readily adaptable to additive manufacturing.<\/p>\n

    Q: What post processing is required for IN738 printed parts?<\/strong><\/p>\n

    A: Post processes like hot isostatic pressing, heat treatment, and machining are usually needed to relieve stresses and achieve the required dimensions, surface finish, and final properties.<\/p>\n

    Q: Are support structures necessary for printing IN738?<\/strong><\/p>\n

    A: Minimal support structures are recommended to avoid difficult removal from complex surfaces and channels. The spherical IN738 powder flows well and does not require extensive supports.<\/p>\n

    Q: What are the alternatives to IN738 powder for 3D printing?<\/strong><\/p>\n

    A: Key alternatives are IN718, IN625, Hastelloy X, Haynes 282, Mar-M247, and C263. However, IN738 provides the best all-round properties for performance and manufacturability.<\/p>\n

    Q: What density is achievable with 3D printed IN738 components?<\/strong><\/p>\n

    A: Densities over 99% are readily achieved for IN738 with optimized 3D printing parameters. This matches the properties of traditionally processed wrought or cast IN738 products.<\/p>\n

    Q: Can IN738 parts be machined after 3D printing?<\/strong><\/p>\n

    A: Yes, machining processes like turning, drilling and milling can be used for better surface finish and accuracy. Suitable tooling parameters are required for machining precipitation hardened IN738 material.<\/p>\n

    Q: What is the typical surface roughness of as-printed IN738 parts?<\/strong><\/p>\n

    A: Surface roughness (Ra) values of around 8-16 microns are typical but can be further improved using machining and other finishing processes.<\/p>\n

    Q: Does IN738 require hot isostatic pressing (HIP) after 3D printing?<\/strong><\/p>\n

    A: HIP helps relieve internal stresses and achieve 100% density but is not mandatory. For non-critical applications, post-process heat treatment may suffice.<\/p>\n

    Q: What are common 3D printing defects observed with IN738?<\/strong><\/p>\n

    A: Defects like porosity, cracking, distortion, incomplete fusion and surface roughness can occur but are mitigated by optimized parameters and procedures.<\/p>\n

    <\/span><\/span><\/p>","protected":false},"excerpt":{"rendered":"

    Pr\u00e9sentation de la poudre IN738 pour l'impression 3D L'IN738 est une poudre de superalliage \u00e0 base de nickel largement utilis\u00e9e pour la fabrication additive de pi\u00e8ces m\u00e9talliques de haute performance. Il combine d'excellentes propri\u00e9t\u00e9s m\u00e9caniques \u00e0 haute temp\u00e9rature avec une facilit\u00e9 de traitement, ce qui en fait un choix id\u00e9al pour l'impression 3D de composants a\u00e9rospatiaux et industriels. Cet article fournit un guide complet sur la poudre d'alliage IN738...<\/p>","protected":false},"featured_media":1755,"parent":0,"template":"","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":""},"product-category":[119,120],"class_list":["post-3875","product","type-product","status-publish","has-post-thumbnail","hentry","product-category-3d-printing-metal-powder","product-category-high-temperature-alloy-powder"],"acf":[],"taxonomy_info":{"product-category":[{"value":119,"label":"3D Printing Metal Powder"},{"value":120,"label":"High Temperature Alloy Powder"}]},"featured_image_src_large":["https:\/\/3dpmetal.com\/wp-content\/uploads\/2024\/02\/Inconel-738LC.jpg",344,290,false],"author_info":[],"comment_info":"","_links":{"self":[{"href":"https:\/\/3dpmetal.com\/fr\/wp-json\/wp\/v2\/product\/3875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3dpmetal.com\/fr\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/3dpmetal.com\/fr\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/fr\/wp-json\/wp\/v2\/media\/1755"}],"wp:attachment":[{"href":"https:\/\/3dpmetal.com\/fr\/wp-json\/wp\/v2\/media?parent=3875"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/3dpmetal.com\/fr\/wp-json\/wp\/v2\/product-category?post=3875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}