铸造2024，Vol.73Issue(8)：1083-1088,6.
冷却速率对钴铬钼合金微观组织及力学性能的影响
Effect of Cooling Rate on Microstructure and Mechanical Properties of Cobalt-Chrome-Molybdenum Alloy
李伟东 1刘小涛 2刘义辉 3张志正 3王非 3王哲 3李宁2
作者信息
- 1. 华中科技大学材料科学与工程学院,湖北武汉 430074||中国船舶集团公司第七二五研究所,河南洛阳 471000||洛阳双瑞精铸钛业有限公司,河南洛阳 471000
- 2. 华中科技大学材料科学与工程学院,湖北武汉 430074
- 3. 中国船舶集团公司第七二五研究所,河南洛阳 471000||洛阳双瑞精铸钛业有限公司,河南洛阳 471000
- 折叠
摘要
Abstract
Cobalt-chromium-molybdenum alloy is the most widely used metallic material for bone and joint implants owing to its outstanding biocompatibility and wear resistance.In this work,the impacts of heat treatment processes with different cooling rates of air cooling,air blast cooling,water cooling,air quenching after treated with the regime of 1150 ℃ for 2 h on the microstructures and mechanical properties of cobalt-Cr-Mo alloys were studied.The results demonstrated that with the increase of cooling rate,the carbide strengthening phases of the Co-Cr-Mo alloys became markedly finer and more dispersive in the matrixes,and both the strength and plasticity of the material were remarkably enhanced.Under the conditions of keeping 1150 ℃ for 2 h in vaccum and the argon cooling rate of 150 ℃/min,the tensile strength,yield strength and elongation of the specimen reached 889 MPa,585 MPa and 13％,respectively.关键词
钴铬钼合金/热处理/冷却速度/真空气淬Key words
cobalt-chrome-molybdenum alloy/heat treatment/cooling rate/vacuum gas quenching分类
矿业与冶金引用本文复制引用
李伟东,刘小涛,刘义辉,张志正,王非,王哲,李宁..冷却速率对钴铬钼合金微观组织及力学性能的影响[J].铸造,2024,73(8):1083-1088,6.
