合金元素对热作模具钢(HD)力学性能的影响  

Effects of Alloying Elements on Mechanical Property of Hot·Die Steel (HD)

作　　者：郭志宏[1,2] 李开儒[1,2] 

机构地区：[1]山西财经大学 [2]太原理工大学(中区)教务处

出　　处：《太原理工大学学报》1998年第2期207-209,共3页Journal of Taiyuan University of Technology

摘　　要：研究降低热作模具钢４Ｃｒ３Ｍｏ２ＮｉＶＮｂ（ＨＤ）中合金元素Ｎｂ，Ｖ，Ｎｉ含量和填加１．５％Ｍｎ元素后钢的力学性能。试验结果表明，降低Ｎｂ，Ｖ，Ｎｉ含量，对（ＨＤ）钢性能室温强度影响不大，断面收缩率略有下降，高温屈服强度、高温塑性略有降低；加入１．５％Ｍｎ使钢室温力学性能略有下降，但高温塑性大幅度增长，并可消除高温脆性。The effects on mechanical property were studied by decreasing the content of Nb,V,Ni and adding 1 5%Mn to HD.The results showed that reducing the content of Nb,V,Ni has little effect on the strength in normal temperature,but makes the rate of sectional contraction,yield strength and plasticity in elevated temperature decrease a little,if 1 5%Mn is added in HD steel,the mechanical property in normal temperature get somewhat decreased,but the plasticity is great improved and hot shortness is eliminated.

关 键 词：模具钢 合金元素 力学性能 

分 类 号：TG142.45[一般工业技术—材料科学与工程]