30CrMnSi钢奥氏体逆相变亚温淬火  

Austenite Inverse Phase Transformation Subcritical Quenching of 30CrMnSi Steel

作　　者：刘志强[1] 刘敬平[2] 郑喜平 张红霞 

机构地区：[1]河南理工大学研究生处,河南焦作454000 [2]焦作大学机电工程学院,河南焦作454003 [3]林州重机集团股份有限公司技术处,河南安阳456550 [4]焦作市质量技术监督检验测试中心物理检验室,河南焦作454000

出　　处：《热加工工艺》2015年第12期223-225,共3页Hot Working Technology

基　　金：河南省科技厅项目(132300410459)

摘　　要：研究了二次淬火温度对30CrMnSi钢力学性能的影响,并对奥氏体逆相变亚温淬火后的硬度、强度和显微组织进行了分析。结果表明：经780~855℃奥氏体逆相变亚温淬火,30CrMnSi钢的显微组织为细小的板条马氏体＋条状铁素体,其硬度和强度随温度的升高而增加,在855℃淬火时达到最大值。The effects of secondary quenching temperature on mechanical property of 30CrMnSi steel were studied. The hardness, strength and microstructure of the steel after austenite inverse phase transformation subcritical quenching were analyzed. The results show that： after austenite inverse phase transformation subcritical quenching at 780 ℃-855 ℃, microstructure of 30CrMnSi steel is fine lath martensite and strip ferrite. The hardness and strength increase with the increase of temperature, and reach the maximum at 855 ℃.

关 键 词：奥氏体逆相变 30CRMNSI钢 亚温淬火 显微组织 

分 类 号：TG156.3[金属学及工艺—热处理]