{"id":3874,"date":"2024-03-18T06:10:10","date_gmt":"2024-03-18T06:10:10","guid":{"rendered":"https:\/\/3dp.45612300.xyz\/product\/best-in718-powder-for-3d-printing\/"},"modified":"2024-03-18T06:10:10","modified_gmt":"2024-03-18T06:10:10","slug":"best-in718-powder-for-3d-printing","status":"publish","type":"product","link":"https:\/\/3dpmetal.com\/vi\/product\/best-in718-powder-for-3d-printing\/","title":{"rendered":"Best in718 powder for 3D printing"},"content":{"rendered":"

<\/p>\n

Overview of IN718 Powder<\/strong><\/h2>\n

IN718 is a precipitation hardenable nickel-based superalloy powder widely used for additive manufacturing, owing to its good strength, corrosion resistance, weldability and processability. This article provides a detailed guide to IN718 powder.<\/p>\n

Key aspects covered include composition, properties, AM print parameters, applications, specifications, suppliers, handling, inspection methods, comparisons to alternatives, pros and cons, and FAQs. Tables are used to present quantitative data in an easy-to-reference format.<\/p>\n

Composition of IN718 Powder<\/strong><\/h3>\n

The composition of IN718 is:<\/p>\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>\n50 – 55<\/td>\nPrincipal matrix element<\/td>\n<\/tr>\n
Chrome<\/td>\n17 – 21<\/td>\nKh\u1ea3 n\u0103ng ch\u1ed1ng \u00f4xi h\u00f3a<\/td>\n<\/tr>\n
S\u1eaft<\/td>\nS\u1ef1 c\u00e2n b\u1eb1ng<\/td>\nSolid solution strengthener<\/td>\n<\/tr>\n
Niobi<\/td>\n4.75 – 5.5<\/td>\nPh\u00e2n c\u1ee9ng k\u1ebft t\u1ee7a<\/td>\n<\/tr>\n
Molyben<\/td>\n2.8 – 3.3<\/td>\nSolid solution strengthening<\/td>\n<\/tr>\n
Titan<\/td>\n0.65 – 1.15<\/td>\nCarbide former<\/td>\n<\/tr>\n
Nh\u00f4m<\/td>\n0.2 – 0.8<\/td>\nPh\u00e2n c\u1ee9ng k\u1ebft t\u1ee7a<\/td>\n<\/tr>\n
Carbon<\/td>\n0.08 max<\/td>\nCarbide former<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Trace amounts of cobalt, boron, copper and magnesium are also added.<\/p>\n

Properties of IN718 Powder<\/strong><\/h3>\n

Key properties of IN718 include:<\/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>\nTensile strength 1050 – 1350 MPa<\/td>\n<\/tr>\n
Phase stability<\/td>\nRetains properties after prolonged use up to 700\u00a1\u00abC<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng ch\u1ed1ng \u0103n m\u00f2n<\/td>\nResistant to aqueous corrosion and oxidation<\/td>\n<\/tr>\n
Kh\u1ea3 n\u0103ng h\u00e0n<\/td>\nExcellent weldability using matching filler material<\/td>\n<\/tr>\n
Fabricability<\/td>\nEasy to form and machine<\/td>\n<\/tr>\n
Creep resistance<\/td>\nHigh stress rupture strength at high temperatures<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The properties make IN718 suitable for the most demanding applications.<\/p>\n

3D Printing Parameters for IN718 Powder<\/strong><\/h3>\n

Typical parameters for printing IN718 powder include:<\/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 height<\/td>\n20 – 50 \u00c3\u00d7m<\/td>\nBalance speed and resolution<\/td>\n<\/tr>\n
Laser power<\/td>\n195 – 350 W<\/td>\nSufficient melting without evaporation<\/td>\n<\/tr>\n
Scan speed<\/td>\n700 – 1300 mm\/s<\/td>\nDensity versus build rate<\/td>\n<\/tr>\n
Hatch spacing<\/td>\n80 – 160 \u00c3\u00d7m<\/td>\nMechanical properties<\/td>\n<\/tr>\n
Support structure<\/td>\nMinimal<\/td>\nEasy removal<\/td>\n<\/tr>\n
Hot isostatic pressing<\/td>\n1120\u00a1\u00abC, 100 MPa, 3h<\/td>\nEliminate internal voids<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

The parameters depend on factors like build geometry, temperature management and post-processing requirements.<\/p>\n

Applications of 3D Printed IN718 Parts<\/strong><\/h3>\n

IN718 parts made by AM are used in:<\/p>\n\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>\nEngine components like turbine blades, discs<\/td>\n<\/tr>\n
Ph\u00e1t \u0111i\u1ec7n<\/td>\nCombustion cans, transition ducts<\/td>\n<\/tr>\n
D\u1ea7u m\u1ecf v\u00e0 kh\u00ed \u0111\u1ed1t<\/td>\nDownhole tools, valves, pumps<\/td>\n<\/tr>\n
\u00d4 t\u00f4<\/td>\nTurbocharger wheels, exhaust valves<\/td>\n<\/tr>\n
Y h\u1ecdc<\/td>\nOrthopedic implants, surgical tools<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Benefits over wrought IN718 include complex geometries, reduced lead times and buy-to-fly ratios.<\/p>\n

Specifications of IN718 Powder for AM<\/strong><\/h3>\n

IN718 powder must meet the following specifications for 3D printing:<\/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>\n10 – 45 \u00c3\u00d7m<\/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>\nTypically > 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<100 ppm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Custom size distributions and tightly controlled composition available.<\/p>\n

Suppliers of IN718 Powder<\/strong><\/h3>\n

Prominent suppliers 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
C\u00f4ng ngh\u1ec7 LPW<\/td>\nV\u01b0\u01a1ng qu\u1ed1c Anh<\/td>\n<\/tr>\n
Erasteel<\/td>\nPh\u00e1p<\/td>\n<\/tr>\n
AP&C<\/td>\nCanada<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Prices range from $50\/kg to $150\/kg, influenced by quality considerations and order volumes.<\/p>\n

Handling and Storage of IN718 Powder<\/strong><\/h3>\n

As a reactive material, IN718 powder requires controlled handling:<\/p>\n

    \n
  • Store sealed containers in a cool, dry inert atmosphere<\/li>\n
  • Prevent exposure to moisture, air, or temperature extremes<\/li>\n
  • Use properly grounded equipment during transfer<\/li>\n
  • Avoid dust accumulation and control ignition sources<\/li>\n
  • Local exhaust ventilation recommended<\/li>\n
  • Follow applicable safety guidelines<\/li>\n<\/ul>\n

    Correct storage and handling prevents composition changes or hazards.<\/p>\n

    Inspection and Testing of IN718 Powder<\/strong><\/h3>\n

    IN718 powder batches are validated using:<\/p>\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
    H\u00ecnh \u1ea3nh SEM<\/td>\nParticle morphology<\/td>\n<\/tr>\n
    EDX<\/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 per ASTM standards ensures batch-to-batch quality consistency.<\/p>\n

    Comparing IN718 to Alternative Superalloy Powders<\/strong><\/h3>\n

    IN718 compares with other alloys as:<\/p>\n\n\n\n\n\n\n\n\n
    H\u1ee3p kim<\/th>\nChi ph\u00ed<\/th>\nPrintability<\/th>\nKh\u1ea3 n\u0103ng h\u00e0n<\/th>\nS\u1ee9c m\u1ea1nh<\/th>\n<\/tr>\n<\/thead>\n
    IN718<\/td>\nTh\u1ea5p<\/td>\nT\u1ed1t<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nTrung b\u00ecnh<\/td>\n<\/tr>\n
    IN625<\/td>\nTrung b\u00ecnh<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nXu\u1ea5t s\u1eafc<\/td>\nTh\u1ea5p<\/td>\n<\/tr>\n
    IN792<\/td>\nCao<\/td>\nC\u00f4ng b\u1eb1ng<\/td>\nT\u1ed1t<\/td>\nXu\u1ea5t s\u1eafc<\/td>\n<\/tr>\n
    IN939<\/td>\nR\u1ea5t cao<\/td>\nT\u1ed1t<\/td>\nLimited<\/td>\nXu\u1ea5t s\u1eafc<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    For balanced properties at lower cost, IN718 supersedes other Ni-based superalloys for many applications.<\/p>\n

    Pros and Cons of IN718 Powder for 3D Printing<\/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
    Proven material credentials in AM<\/td>\nLower high temperature strength than some alloys<\/td>\n<\/tr>\n
    Excellent weldability and machinability<\/td>\nSusceptible to solidification cracking during printing<\/td>\n<\/tr>\n
    Easily fabricated into complex shapes<\/td>\nRequires controlled atmosphere handling<\/td>\n<\/tr>\n
    Cost advantage over exotic superalloys<\/td>\nSignificant post-processing often needed<\/td>\n<\/tr>\n
    Readily available from range of suppliers<\/td>\nRelatively low hardness after printing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    IN718 enables high performance additive manufacturing at a reasonable cost.<\/p>\n

    Frequently Asked Questions about IN718 Powder<\/strong><\/h2>\n

    Q: What particle size range works best for 3D printing IN718 alloy?<\/strong><\/p>\n

    A: A range of 15-45 microns provides the optimum blend of flowability, high resolution, and high density parts. Finer powders below 10 microns can also be used.<\/p>\n

    Q: What post processing is typically required for IN718 AM components?<\/strong><\/p>\n

    A: Hot isostatic pressing, heat treatment, and machining are commonly needed to eliminate voids, optimize properties, and achieve dimensional accuracy.<\/p>\n

    Q: Is IN718 easier to 3D print compared to other Ni superalloys?<\/strong><\/p>\n

    A: Yes, the excellent weldability and lower susceptibility to cracking make IN718 one of the easier to process Ni-based superalloys by powder bed fusion techniques.<\/p>\n

    Q: What industries use IN718 alloy for metal 3D printing?<\/strong><\/p>\n

    A: Aerospace, power generation, oil and gas, automotive, and medical sectors are major application areas for additively manufactured IN718 components.<\/p>\n

    Q: What material has properties closest to IN718 for AM?<\/strong><\/p>\n

    A: IN625 alloy powder has comparable weldability and corrosion resistance to IN718 but lower strength. IN792 trades weldability for higher strength.<\/p>\n

    Q: Is hot isostatic pressing mandatory for IN718 3D printed parts?<\/strong><\/p>\n

    A: HIP eliminates internal voids and improves fatigue resistance. It may not be required for non-critical applications.<\/p>\n

    Q: Does IN718 require support structures during 3D printing?<\/strong><\/p>\n

    A: Minimal supports are recommended on overhangs and bridged sections to prevent deformation and facilitate easy removal post-printing.<\/p>\n

    Q: What defects can occur when printing with IN718 powder?<\/strong><\/p>\n

    A: Potential defects are cracking, porosity, distortion, incomplete fusion, and surface roughness. Most can be prevented with optimized parameters.<\/p>\n

    Q: What hardness can be expected with IN718 AM components?<\/strong><\/p>\n

    A: Hardness after printing is typically 30-35 HRC. Post-processing like aging can increase it to 40-50 HRC for higher wear resistance.<\/p>\n

    Q: What precision can be obtained with IN718 printed parts?<\/strong><\/p>\n

    A: After post-processing, IN718 printed components can achieve dimensional tolerances and surface finishes comparable to CNC machined parts.<\/p>\n

    \n
    <\/div>\n<\/div>\n

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