亚温正火在大型锻件中的应用  

Application of Subcritical Normalizing in Large Forgings

作　　者：马晓兵[1] 刘国平[1] 周预平 曹晶洁 杨文明[1] 

机构地区：[1]武汉重工铸锻有限责任公司技术中心,湖北430084

出　　处：《大型铸锻件》2015年第1期49-50,37,共3页Heavy Casting and Forging

摘　　要：对比吊钩采用常规热处理工艺和亚温正火+回火热处理后的力学性能,结果表明,采用亚温正火+回火热处理后,可以大大提高其低温冲击性能。The mechanical properties of lifting hook are compared by conventional heat treatment process and subcritical normalizing and tempering heat treatment process,and the results show that the low temperature impact properties can be improved largely by subcritical normalizing and tempering heat treatment.

关 键 词：亚温正火 回火 吊钩 低温冲击性能 

分 类 号：TG156[金属学及工艺—热处理]