22Cr12NiWMoV锻件晶粒细化及机理研究  

Research on the Grain Refinement and Mechanism of 22Cr12NiWMoV Forgings

作　　者：赵义瀚[1] 孙福民[1] 吕振家[1] 刘新新[1] 彭建强[1] ZHAO Yi-han;SUN Fu-min;LV Zhen-jia;LIU Xin-xin;PENG Jian-qiang(Harbin Turbine Company Limited, Harbin 150046, China)

机构地区：[1]哈尔滨汽轮机厂有限责任公司,哈尔滨150046

出　　处：《汽轮机技术》2019年第2期155-157,共3页Turbine Technology

摘　　要：为解决22Cr12NiWMoV锻件性能热处理后粗晶问题,采用不同温度热处理相结合方式,观察了金相组织变化特征,并对晶粒细化机理进行阐述。试验结果表明:将22Cr12NiWMoV锻件在非平衡组织状态下,先进行850℃×3h炉冷,再进行1040℃×0.5h油冷、690℃×3h空冷后,晶粒度等级可由2级细化到5级。In order to solve coarse-grain after forgings treatment of 22Cr12NiWMoV forgings, the metallographic structure has been observed and the refining mechanism has been analyzed after different heating processing. The results display that for 22Cr12NiWMoV forging steel, the grain size refined from level 2 to level 5 under non-equilibrium state organization at 850℃×3hFC,1040℃×0.5hOC,690℃×3hFC.

关 键 词：22Cr12NiWMoV钢 热处理 晶粒细化 

分 类 号：TK265[动力工程及工程热物理—动力机械及工程]