多向锻造4Cr5MoSiV1模具钢的组织与性能研究  

Study on Microstructure and Properties of Multi Direction Forged 4Cr5MoSiV1 Die Steel

作　　者：李科[1] 陈建华[1] 李相军 LI Ke;CHEN Jianhua;LI Xiangjun(Handan Polytechnic College,Handan 056001,China;School of Materials Science and Engineering,Henan University of Technology,Jiaozuo 454003,China)

机构地区：[1]邯郸职业技术学院,河北邯郸056001 [2]河南理工大学材料科学与工程学院,河南焦作454003

出　　处：《热加工工艺》2025年第4期128-132,共5页Hot Working Technology

基　　金：河北科技支撑计划项目(11212138)。

摘　　要：为了研究多向锻造4Cr5MoSiV1模具钢的显微组织以及高温性能,对该模具钢试样进行了多向锻造处理,并与多向锻造前的坯料试样进行对比,测试和分析了试样的显微组织、450℃高温测试环境下的力学性能和耐磨损性能。结果表明:多向锻造显著细化了内部晶粒,改善了试样内部显微组织,明显提高了试样高温力学性能和高温耐磨损性能。与多向锻造前4Cr5MoSiV1模具钢坯料试样相比较,多向锻造后该模具钢锻造试样在450℃高温测试环境下的抗拉强度增大幅度达60.78%,屈服强度增大幅度达73.54%,摩擦磨损5 min后的磨损体积减小幅度达52.78%,摩擦磨损20 min后的磨损体积减小幅度达55.76%。In order to study the microstructure and high temperature properties of the multidirectional forging 4Cr5MoSiV1 die steel,the multidirectional forging treatment of the die steel sample was carried out,and the die steel sample was compared with the die steel blank sample before the multidirectional forging.The microstructure of the sample,mechanical properties and wear resistance under the 450℃high temperature test environment were tested and analyzed.The results show that the multi-directional forging significantly refines the internal grains,improves the internal microstructure of the sample,and significantly improves the high-temperature mechanical properties and high-temperature wear resistance of the sample.Compared with those of the specimen of 4Cr5MoSiV1 die steel blank before multi-directional forging,the tensile strength of the 4Cr5MoSiV1 die steel specimen after multi-directional forging increases by 60.78%,the yield strength increases by 73.54%,the wear volume decreases by 52.78%after 5 min of friction and wear,and the wear volume decreases by 55.76%after 20 min of friction and wear.

关 键 词：4Cr5MoSiV1模具钢 多向锻造 高温力学性能 高温耐磨损性能 

分 类 号：TG316.3[金属学及工艺—金属压力加工]