摘要
为研究Cr12MoV的微观组织对其力学性能的影响,采用钢光板Cr12MoV为原材料,通过箱式电阻炉高温退火(860℃),淬火(950/980℃)和回火(210/520℃)制得样品后,采用X射线衍射仪、洛氏硬度、冲击试验机和金相显微镜等进行材料学分析检测。结果表明,最优的热处理方案为860℃退火+980℃淬火+520℃回火,此时组织中有着细小晶粒的索氏体和均匀析出的碳化物,有着较高的硬度(75 HRC)和最大的冲击韧性(36.07 J)。
In order to study the influence of Cr12MoV microstructure on its mechanical properties,steel plate Cr12MoV was used as raw material,and samples were prepared by high-temperature annealing(860℃),quenching(950/980℃)and tempering(210/520℃)in box resistance furnace.X-ray diffractometer,Rockwell hardness,impact testing machine and metallographic microscope were used for material analysis.The results show that the optimal heat treatment scheme is annealing at 860℃,quenching at 980℃and tempering at 520℃.At this time,there are fine grained sortensite and uniformly precipitated carbides in the microstructure,and it has high hardness(75 HRC)and maximum impact toughness(36.07 J).
作者
廖婷婷
杨华东
杨何
刘浩茏
陈飞
唐清明
丁义超
LIAO Tingting;YANG Huadong;YANG He;LIU Haolong;CHEN Fei;TANG Qingming;DING Yichao(School of Materials and Environmental Engineering,Chengdu Technological University,Chengdu 611730,China;Panzhihua Shuigang Hongfa Mining Co.,Ltd.,Panzhihua 617112,China)
出处
《成都工业学院学报》
2023年第6期8-12,共5页
Journal of Chengdu Technological University
基金
四川省科技计划重大研发项目“高钛球团矿绿色高性能制造技术和关键装备研发及应用示范”。
关键词
冷作模具钢
CR12MOV
热处理工艺
微观组织
力学性能
cold working die steel
Cr12MoV
heat treatment process
microstructure
mechanical performance
