65Mn钢连续冷却转变特性的试验研究  

Characteristic of 65Mn steel during continuous cooling transformation

作　　者：余万华[1] 徐绿婷[1] 张永军[1] 王会凤[1] 韩静涛[1] 刘靖[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《金属热处理》2010年第1期47-50,共4页Heat Treatment of Metals

摘　　要：用膨胀法测定65Mn钢的CCT曲线。得到了高碳线材在连续冷却过程中组织转变的特点,确定了控冷工艺的冷速范围,为了得到最多的索氏体,需将65Mn钢相变时的冷速控制在1-3℃/s。此结果对实际生产有指导作用。Continuous cooling transformation curve of 65Mn steel was determined by dilatometric method.Characteristics of microstructure transformation of high-carbon wire rod during continuous cooling process and domain of cooling rates of 65Mn steel were obtained.In order to obtain a great quantity of sorbite for 65Mn steel,the cooling rate in the phase transformation period is between 1 ℃/s and 3 ℃/s.This result can provide guidance for practical production control.

关 键 词：连续冷却 CCT曲线 组织 65MN钢 

分 类 号：TG33[金属学及工艺—金属压力加工]