高温均质工艺改善30Cr3MoV芯棒材料的冲击韧性  

IMPROVING IMPACT TOUGHNESS OF MANDREL STEEL 30Cr3MoV BY HIGH TEMPERATURE HOMOGENIZING

作　　者：何西娟[1] 李丰[1] 左鹏鹏[1] 黎军顽[1] 吴晓春[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《上海金属》2013年第5期27-30,共4页Shanghai Metals

基　　金："十一五"国家科技支撑计划课题:高品质模具钢锻材关键技术开发(2007BAE51B04);上海市重点学科建设项目(S30107)

摘　　要：为降低材料成本,研发出一种经济型低合金空心芯棒用钢30Cr3MoV,研究了高温均质化对30Cr3MoV钢液析碳化物及冲击韧性的影响。结果表明,通过高温均质化处理有效地消除了钢中液析碳化物VC,提高芯棒冲击韧性,合理的高温均质化温度为1 230℃,同时芯棒横纵比提高了约0.18,等向性能大大提高。A new economical low alloy steel for hollow mandrel was presented to reduce the cost of materials. The effect of high temperature homogenizing on the liquid-precipitated carbides and impact toughness of 30Cr3 MoV steel was studied. High temperature homogenizing could effectively eliminate the liquid-precipitated carbides VC and improve the tougheness. The reasonable homogenizing temperature for the hollow mandrel steel 30Cr3MoV was 1 230 ~C. The aspect ratio of the hollow mandrel increased by about 0.18. Thereby, the isotropic of the hollow mandrel would be greatly improved.

关 键 词：30Cr3MoV钢 空心芯棒 高温均质化 冲击性能液析碳化物 

分 类 号：TG316[金属学及工艺—金属压力加工]