ZG80CrMnMo钢的CCT曲线及组织研究  

Study on CCT Curve and Microstructure of ZG80CrMnMo Steel

作　　者：刘自勇[1] 杨涤心[1,2] 谢敬佩[1] 王爱琴[1] 王文焱[1] 

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471003 [2]河南省有色金属材料科学与加工技术重点实验室,河南洛阳471000

出　　处：《铸造技术》2012年第2期164-166,共3页Foundry Technology

基　　金：河南省国际科技合作项目(084300510006);河南科技大学博士科研基金(2008bs025)

摘　　要：在Gleeble-1500热模拟试验机上测试了ZG80CrMnMo钢的奥氏体连续冷却转变曲线(CCT曲线),并检测了不同冷却速度下转变产物的显微组织和硬度。研究了以1℃/s至45℃/s冷速连续冷却时的组织转变规律。结果表明,CCT曲线明显右移,珠光体和贝氏体转变被抑制,在所研究的冷却范围内容易得到马氏体+残余奥氏体组织。所测得的ZG80CrMnMo钢的CCT曲线可为生产马氏体钢提供参考。The CCT（Continuous Cooling Transformation） curve of ZG80CrMnMo steel was measured on Gleeble-1500 thermal trial simulator,the microstructure and hardness of transformation products under different cooling velocities were observed.The structure transformation regularity with being cooled continuously were emphatically researched at the cooling rate form 1℃/s to 45 ℃/s.The results show that CCT curve shift to the right,pearlite and bainite transformation are inhibited,martensite and residual austenite can easier-to-obtain within the studied of scope cooling rate.The CCT curve of ZG80CrMnMo steel can provide a instruction for producing martensitic steels.

关 键 词：热模拟 CCT曲线 高碳低合金钢 组织 

分 类 号：TG142.33[一般工业技术—材料科学与工程]