Co-Cr-Mo alloy with high wear resistance
A cobalt-chromium-molybdenum alloy, high wear-resistant technology, applied in the field of high-temperature alloys, can solve problems such as insufficient wear resistance of cobalt-chromium-molybdenum alloys, and achieve the effect of solving insufficient hardness and insufficient wear resistance and improving material hardness
Inactive Publication Date: 2013-04-24
BEIJING MELTOP METAL
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Problems solved by technology
[0010] The purpose of the present invention is to provide a cobalt-chromium-molybdenum alloy with high wear resistance, which solves the problem of insufficient wear resistance of the existing cobalt-chromium-molybdenum alloy, and can produce products by casting, forging or powder metallurgy. ; It can meet the needs of the zinc industry or harsh industrial environments that require high temperature resistance, corrosion resistance and wear resistance at the same time, and can meet the jewelry industry's requirements for rings, bracelets, watch cases and other products that are scratch-resistant and brighter and whiter. It can be used in the production of electroplating sputtering targets, and physical vapor deposition forms a dense and highly wear-resistant white and bright surface layer, which meets people's higher requirements for the appearance, color and sensory of jewelry
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[0013] The hardness range of the above-mentioned cobalt-chromium-molybdenum alloy materials at home and abroad is between HRC25-35, and the wear resistance is obviously insufficient.
[0014] According to the following composition proportions, the ingots are produced by vacuum casting, and the hardness of the alloy is tested after production. The results are shown in Table 3:
[0015] Table 3 Wt%
[0016]
[0017] In summary, the high wear resistance cobalt-chromium-molybdenum alloy involved in the present invention has a hardness range of 36-65HRC.
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The invention relates to a Co-Cr-Mo alloy with high wear resistance, which belongs to the technical field of high temperature alloy. The Co-Cr-Mo alloy comprises, by weight, 24 to 35% of Cr, 5 to 20% of Mo, 0.35 to 2.5% of C, 0 to 4% of Ni, 0 to 4% of Fe, 0 to 2% of Si and 0 to 2% of Mn, with the balance being Co and other avoidable impurity elements and technical elements. The invention has the following advantages: the Co-Cr-Mo alloy overcomes the problem that conventional Co-Cr-Mo alloy has insufficient wear resistance, and production modes like casting, forging and powder metallurgy can be used for production of the Co-Cr-Mo alloy; the Co-Cr-Mo alloy can meet individual need or simultaneous need for high temperature resistance, corrosion resistance and wear resistance in the zinc industry and the like with a severe industrial environment, satisfies requirements for scratch resistance, brightness and whiteness on products like finger rings, bracelets and watchcases in the ornament industry, is applicable to production of electroplating sputtering target materials for formation of compact, high-wear resistance, white and bright surface layers through physical vapor deposition and meet higher demands by people for color, luster and visual impression of the appearance of ornaments.
Description
technical field [0001] The invention belongs to the technical field of superalloys, and in particular provides a cobalt-chromium-molybdenum alloy with high wear resistance. Background technique [0002] Cobalt-based alloys mainly include two series of cobalt chromium tungsten (CoCrW) and cobalt chromium molybdenum (CoCrMo). The alloy has high temperature resistance, excellent corrosion resistance and insufficient wear resistance; [0003] The following table is the standard composition range and hardness index of common cobalt chromium molybdenum (CoCrMo) series alloys at home and abroad: [0004] 1 YY0605.12-2007 / ISO5832-12: 1996 [0005] Table 1 Unit: Wt% [0006] [0007] 2 ASTM F75-07 and ASTM1537-08 [0008] Table 2 Unit: Wt% [0009] Contents of the invention [0010] The purpose of the present invention is to provide a cobalt-chromium-molybdenum alloy with high wear resistance, which solves the problem of insufficient wear resistance of the existing cobal...
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IPC IPC(8): C22C19/07C22C30/00
CPCC22C19/07C22C30/00
Inventor 周严胜刘建军
Owner BEIJING MELTOP METAL