冷处理对Cr12MoV钢高压气淬组织和性能的影响  

Effects of Cold Treatment on Microstructure and Properties of Cr12MoV Steel After High Pressure Gas Quenched

作　　者：王志新[1] 施建军[1,2] 林在滨 

机构地区：[1]中原工学院材料与化工学院,河南郑州450007 [2]郑州飞虹热处理设备制造有限公司,河南郑州450066

出　　处：《热加工工艺》2015年第18期200-202,共3页Hot Working Technology

基　　金：河南省重点科技攻关项目(142102210084);郑州市中小企业创新基金资助项目(122PCXJJ806)

摘　　要：采用X射线衍射仪、金相显微镜、扫描电镜分析了Cr12MoV钢高压气淬后不同工艺处理的组织和形貌,并通过显微硬度计和磨损试验机测定了样品的显微硬度和耐磨性。结果表明:高压淬火后不同处理工艺对Cr12MoV钢组织和性能有较大影响。冷处理可以促使残余奥氏体向马氏体转变,明显提高材料的显微硬度和耐磨性。The microstructure of Cr12MoV steel after high pressure gas quenched was investigated by XRD,metallurgical microscope and SEM. The microhardness and wear resistance were tested with Vickers hardness tester and wear testing machine,respectively. The results show that the treatment process has great influence on the microstructure and properties of Cr12MoV steel after high pressure gas quenched. Cold treatment can promote the transformation from retained austenite to martensite,and the hardness and wear resistance of sample improve significantly.

关 键 词：CR12MOV钢 高压气淬 冷处理 组织 性能 

分 类 号：TG156.34[金属学及工艺—热处理]