40Cr钢亚温淬火氮碳共渗工艺试验研究  

Study on Sub-tempering Quenching and Nitrocarburizing of 40Cr steel

作　　者：商兴国[1] 王杰[1] 

机构地区：[1]唐山学院,河北唐山063000

出　　处：《煤矿机械》2011年第10期142-143,共2页Coal Mine Machinery

摘　　要：对40Cr钢亚温淬火氮碳共渗处理工艺和传统调质工艺进行对比试验研究,结果表明,40Cr经亚温淬火后较完全淬火在硬度、抗拉强度和屈服强度上稍有下降,但延伸率和冲击韧度有较大提高,氮碳共渗处理后表面硬度极大提高。The mechanical performances of 40Cr steel experienced intercritical quenching nitrocarburizing and traditional quenching and tempering was compared,the results indicated that the hardness and toughness of 40Cr steel slightly decreased,the ductility and toughness improved greatly,the hardness of 40Cr steel experienced nitrocarburizing improved sharply.

关 键 词：40CR钢 亚温淬火 氮碳共渗 

分 类 号：TG162.4[金属学及工艺—热处理]