{"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\/vi\/product\/best-in738-powder-for-3d-printing-in-2023\/","title":{"rendered":"Best IN738 powder for 3D printing in 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
Nguy\u00ean t\u1ed1<\/th>\nT\u1ec9 tr\u1ecdng<\/th>\nM\u1ee5c \u0111\u00edch<\/th>\n<\/tr>\n<\/thead>\n
Niken<\/td>\nS\u1ef1 c\u00e2n b\u1eb1ng<\/td>\nMatrix element provides corrosion resistance<\/td>\n<\/tr>\n
Chrome<\/td>\n15 – 17<\/td>\nKh\u1ea3 n\u0103ng ch\u1ed1ng \u00f4xi h\u00f3a<\/td>\n<\/tr>\n
Nh\u00f4m<\/td>\n3.4 – 4.4<\/td>\nPh\u00e2n c\u1ee9ng k\u1ebft t\u1ee7a<\/td>\n<\/tr>\n
Titan<\/td>\n3.2 – 4.2<\/td>\nPh\u00e2n c\u1ee9ng k\u1ebft t\u1ee7a<\/td>\n<\/tr>\n
S\u1eaft<\/td>\n12.5 max<\/td>\nSolid solution strengthening<\/td>\n<\/tr>\n
C\u00f4 ban<\/td>\n8.5 – 10<\/td>\nSolid solution strengthening<\/td>\n<\/tr>\n
Molyben<\/td>\n1.5 – 2.5<\/td>\nCreep strengthening<\/td>\n<\/tr>\n
Tantal<\/td>\n1 – 2<\/td>\nPh\u00e2n c\u1ee9ng k\u1ebft t\u1ee7a<\/td>\n<\/tr>\n
Carbon<\/td>\n0.11 max<\/td>\nCarbide former<\/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
B\u1ea5t \u0111\u1ed9ng s\u1ea3n<\/th>\nMi\u00eau t\u1ea3<\/th>\n<\/tr>\n<\/thead>\n
\u0111\u1ed9 b\u1ec1n cao<\/td>\nExcellent tensile and creep rupture strength up to 750\u00a1\u00abC<\/td>\n<\/tr>\n
T\u00ednh \u1ed5n \u0111\u1ecbnh nhi\u1ec7t<\/td>\nStrength and hardness maintained up to 700\u00a1\u00abC<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng ch\u1ed1ng \u00f4xi h\u00f3a<\/td>\nForms protective Cr2O3 oxide scale<\/td>\n<\/tr>\n
Thermal fatigue resistance<\/td>\nResists cracking during thermal cycling<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/td>\nHigh resistance to hot corrosion and oxidation<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng x\u1eed l\u00fd<\/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
Tham s\u1ed1<\/th>\nTypical value<\/th>\nM\u1ee5c \u0111\u00edch<\/th>\n<\/tr>\n<\/thead>\n
Layer thickness<\/td>\n20-50 \u00c3\u00b5m<\/td>\nThinner layers improve resolution<\/td>\n<\/tr>\n
Laser power<\/td>\n180-500 W<\/td>\nMelting condition without evaporation<\/td>\n<\/tr>\n
Scan speed<\/td>\n800-1600 mm\/s<\/td>\nBalances density and build time<\/td>\n<\/tr>\n
Hatch spacing<\/td>\n50-200 \u00c3\u00d7m<\/td>\nDensity and mechanical properties<\/td>\n<\/tr>\n
Support structure<\/td>\nMinimal<\/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
Ng\u00e0nh<\/th>\nTh\u00e0nh ph\u1ea7n<\/th>\n<\/tr>\n<\/thead>\n
Hi\u00ea\u0323p c\u00f4ng<\/td>\nTurbine blades, combustors, exhaust parts<\/td>\n<\/tr>\n
Ph\u00e1t \u0111i\u1ec7n<\/td>\nHot gas path parts, heat exchangers<\/td>\n<\/tr>\n
\u00d4 t\u00f4<\/td>\nTurbocharger wheels, valves<\/td>\n<\/tr>\n
X\u1eed l\u00fd h\u00f3a ch\u1ea5t<\/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
Tham s\u1ed1<\/th>\n\u0110\u1eb7c \u0111i\u1ec3m k\u1ef9 thu\u1eadt<\/th>\n<\/tr>\n<\/thead>\n
Ph\u1ea1m vi k\u00edch th\u01b0\u1edbc c\u1ee7a c\u00e1c h\u1ea1t<\/td>\n15-45 \u00c3\u00d7m typical<\/td>\n<\/tr>\n
H\u00ecnh d\u1ea1ng h\u1ea1t<\/td>\nSpherical morphology<\/td>\n<\/tr>\n
M\u1eadt \u0111\u1ed9 bi\u1ec3u ki\u1ebfn<\/td>\n> 4 g\/cc<\/td>\n<\/tr>\n
M\u1eadt \u0111\u1ed9 ch\u1ecbu n\u00e9n<\/td>\n> 6 g\/cc<\/td>\n<\/tr>\n
L\u01b0u l\u01b0\u1ee3ng ph\u00f2ng<\/td>\n> 23 sec for 50 g<\/td>\n<\/tr>\n
S\u1ea1ch s\u1ebd<\/td>\n>99.9%<\/td>\n<\/tr>\n
H\u00e0m l\u01b0\u1ee3ng oxy<\/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
Nh\u00e0 cung c\u1ea5p<\/th>\n\u0110\u1ecba \u0111i\u1ec3m<\/th>\n<\/tr>\n<\/thead>\n
Praxair<\/td>\nHoa K\u1ef3<\/td>\n<\/tr>\n
S\u1ea3n ph\u1ea9m b\u1ed9t Carpenter<\/td>\nHoa K\u1ef3<\/td>\n<\/tr>\n
Sandvik Osprey<\/td>\nV\u01b0\u01a1ng qu\u1ed1c Anh<\/td>\n<\/tr>\n
Erasteel<\/td>\nTh\u1ee5y \u0110i\u1ec3n<\/td>\n<\/tr>\n
AMETEK<\/td>\nHoa K\u1ef3<\/td>\n<\/tr>\n
C\u00f4ng ngh\u1ec7 LPW<\/td>\nV\u01b0\u01a1ng qu\u1ed1c Anh<\/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
  • Ground equipment to dissipate static charges<\/li>\n
  • Minimize dust generation and accumulation<\/li>\n
  • Local exhaust ventilation recommended<\/li>\n
  • Follow safety data sheet precautions<\/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
    Ph\u01b0\u01a1ng ph\u00e1p<\/th>\nParameters Tested<\/th>\n<\/tr>\n<\/thead>\n
    Ph\u00e2n t\u00edch r\u00e2y<\/td>\nPh\u00e2n ph\u1ed1i k\u00edch th\u01b0\u1edbc h\u1ea1t<\/td>\n<\/tr>\n
    Kh\u00fac x\u1ea1 laser<\/td>\nPh\u00e2n ph\u1ed1i k\u00edch th\u01b0\u1edbc h\u1ea1t<\/td>\n<\/tr>\n
    H\u00ecnh \u1ea3nh SEM<\/td>\nParticle morphology and microstructure<\/td>\n<\/tr>\n
    EDX\/XRF<\/td>\nChemistry and composition<\/td>\n<\/tr>\n
    XRD<\/td>\nPhases present<\/td>\n<\/tr>\n
    Pycnometry<\/td>\nM\u1eadt \u0111\u1ed9<\/td>\n<\/tr>\n
    L\u01b0u l\u01b0\u1ee3ng ph\u00f2ng<\/td>\nL\u01b0u l\u01b0\u1ee3ng b\u1ed9t<\/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
    H\u1ee3p kim<\/th>\nKh\u1ea3 n\u0103ng ch\u1ed1ng \u00f4xi h\u00f3a<\/th>\nChi ph\u00ed<\/th>\nPrintability<\/th>\nKh\u1ea3 n\u0103ng h\u00e0n<\/th>\n<\/tr>\n<\/thead>\n
    IN738<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nTrung b\u00ecnh<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nT\u1ed1t<\/td>\n<\/tr>\n
    IN718<\/td>\nTrung b\u00ecnh<\/td>\nTh\u1ea5p<\/td>\nC\u00f4ng b\u1eb1ng<\/td>\nXu\u1ea5t s\u1eafc<\/td>\n<\/tr>\n
    Haynes 282<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nR\u1ea5t cao<\/td>\nT\u1ed1t<\/td>\nLimited<\/td>\n<\/tr>\n
    Inconel 625<\/td>\nT\u1ed1t<\/td>\nTrung b\u00ecnh<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nXu\u1ea5t s\u1eafc<\/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
    \u01afu \u0111i\u1ec3m<\/th>\nNh\u01b0\u1ee3c \u0111i\u1ec3m<\/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
    Complex geometries possible<\/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

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    Overview of IN738 Powder for 3D Printing 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. This article provides a comprehensive guide to IN738 alloy powder…<\/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\/vi\/wp-json\/wp\/v2\/product\/3875","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3dpmetal.com\/vi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/3dpmetal.com\/vi\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3dpmetal.com\/vi\/wp-json\/wp\/v2\/media\/1755"}],"wp:attachment":[{"href":"https:\/\/3dpmetal.com\/vi\/wp-json\/wp\/v2\/media?parent=3875"}],"wp:term":[{"taxonomy":"product-category","embeddable":true,"href":"https:\/\/3dpmetal.com\/vi\/wp-json\/wp\/v2\/product-category?post=3875"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}