81031钢的合金化原理及热处理工艺试验  

Investigation into the Alloying Principle and Heat Treatment Methord Test of 81031 Steel

作　　者：李远睿[1] 王书珍[1] 史兴华[1] 胡跃均[1] 

机构地区：[1]重庆大学材料科学与工程学院,重庆400030

出　　处：《重庆大学学报（自然科学版）》2007年第6期65-68,共4页Journal of Chongqing University

基　　金：重庆市自然科学基金资助项目(2006AC4021)

摘　　要：81031钢是一种含Cr10．5％左右，添加了少量的Ni和Mo，含碳量0．31％左右的成型能好，热处理后硬度很高的新型马氏体不锈钢。分析了它的合金化原理后，用其热轧板材进行了7个不同温度的淬火工艺试验，得到在1050℃加热该钢并油淬火后可以获得HRC59—61的硬度，并作出了硬度与淬火温度的关系曲线；淬火后及时进行了-15℃冷处理，其硬度增加并不明显。继而对在1050℃淬火后的试样于140～240℃热油中进行了低温回火试验，得到了硬度随回火温度变化而改变的曲线。为该钢种在民用刀具行业的应用上提供了制定其热处理工艺的依据。81031 steel is one kind of martensitic stainless steels , which contain Cr about 10.5 % , added few Ni and Mo , and contain C only 0.31% , this steel has good shape performance , and its hardness is very high after heat treatment. This article has analyzed its alloying principle , then using its hot rolling plates carried out quenching testing at 7 differ- ent temperatures, after this , heating up this steel at 1 050 ℃ and quenching it in oil , then obtaining its hardness HRC59-61 , and making the relational curve between hardness and the quenching temperature. This steel will carried on- 15 ℃ cold treatment after quenching , but its hardness increases is not obvious. Subsequently , the sample of after quenching at 1 050℃ will take the low temper testing in 140 -240 ℃ hot oil. A curve can be made which the hardness varies with the temper temperature. Consequently , all those conclusion can be a criterion to making the cutler heat treatment technical.

关 键 词：钢 合金化 原理 热处理 

分 类 号：TG161[金属学及工艺—热处理]