Alloy, alloy powder, alloy member, and composite member
A technology for alloy powder and composite components, applied in the fields of alloy components and composite components, alloys, and alloy powders, can solve problems such as insufficient wear resistance, and achieve the effects of excellent wear resistance and excellent corrosion resistance.
Active Publication Date: 2022-05-06
株式会社博迈立铖
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Problems solved by technology
This level of hardness is insufficient for wear resistance in the application of injection molding screws and barrels
Method used
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Embodiment
[0168] Hereinafter, although an Example is shown and this invention is concretely demonstrated, the technical scope of this invention is not limited to this.
[0169] [Production of alloy block]
[0170] In order to confirm the appropriate amount and appropriate ratio of the chemical components of the alloy of the present invention, an alloy ingot was produced by casting. The alloy ingot produced by the casting method can be said to simulate the as-cast solidified structure of the alloy member of the present invention and the alloy powder of the present invention.
[0171] As alloy raw materials, the following nine types were prepared and weighed according to the chemical composition shown in Table 1.
[0172] Ni: spherical particles with a diameter of 8 to 15mm,
[0173] Cr: powder with a particle size of 63-90 μm,
[0174] Mo: fine powder with an average particle size of about 1.5 μm,
[0175] Ta: Powder with a particle size of 45 μm or less,
[0176] Mo 2 C: fine powd...
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Abstract
The present invention provides an alloy, an alloy powder, an alloy member, and a composite member, which have excellent corrosion resistance and wear resistance, have crack resistance, and are suitable for an additive manufacturing method and the like. An alloy and an alloy powder which contain, in mass%, 18-22% of Cr, 18-28% of Mo, 1.5-57% of Ta, 1.0-2.5% of C, 0-42% of Nb, 0-15% of Ti, 0-27% of V, and 0-29% of Zr, with the remainder being Ni and unavoidable impurities, and which satisfy (Ta + 0.7 Nb + Ti + 0.6 V + Zr) / C = 0.5-1.5 in molar ratio. The alloy member is a layered molded body or cast article having a solidified structure that has a dendritic crystal structure and a metal phase that is a face-centered cubic lattice structure, and a carbide. The composite member has a base material and an alloy layer laminated on the surface of the base material, and the alloy layer is a laminated molded body having a solidified structure that has a dendritic crystal structure and a metal phase that is a face-centered cubic lattice structure and a carbide.
Description
technical field [0001] The invention relates to alloys, alloy powders, alloy components and composite components, which are excellent in corrosion resistance and wear resistance, and have crack resistance and are suitable for additive manufacturing methods and the like. Background technique [0002] The injection molding machine is equipped with a screw that injects the molten resin into a mold while kneading the molten resin in a barrel that heats and melts the injected resin. When the resin is melted, corrosive gases such as sulfide gas may be generated, so the screw and barrel for injection molding are required to have corrosion resistance against corrosive gases. In addition, in the molding of fiber-reinforced plastics, since glass fibers, carbon fibers, etc. are added to the resin, wear resistance, that is, hardness is also required. [0003] Conventionally, Ni-based alloys (Ni-Cr-Mo-based alloys) have been known as alloys excellent in corrosion resistance and high in ...
Claims
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IPC IPC(8): C22C30/00C22C19/05B22F10/28B22F1/142B22F1/065B22F5/00B22F7/04B22F9/08B33Y10/00B33Y70/10B33Y80/00B22F1/00
CPCC22C30/00C22C19/055B22F10/28B22F9/082C22C32/0052B22F5/00B22F7/04B33Y10/00B33Y70/10B33Y80/00B22F2009/0824B22F2007/042B22F1/00B33Y70/00C22C19/05C22C27/02C22C30/02Y02P10/25C22C19/056C22C1/0433C22C1/05B22F10/25B22F5/085B22F2005/002B29C45/60B22F7/02B22F2301/15B22F2303/01B22F2304/10B22F2999/00
Inventor 白鸟浩史品川一矢桑原孝介小关秀峰
Owner 株式会社博迈立铖