Effect of Cooling Rate on Structure and Properties of Wear-Resistant Low Chromium Cast Iron after Hot Deformation  

作　　者：CHANGLi-min WANGHai-yan HUANGYa-dian XUHong ZHOUXiao-guang 

机构地区：[1]JilinNormalUniversity,Siping136000,China [2]YanshanUniversity,Qinhuangdao066004,China [3]SipingInstituteofScienceandTechnology,Siping13600,China

出　　处：《Journal of Iron and Steel Research International》2005年第2期52-55,63,共5页

基　　金：ItemSponsoredbyGuidingProgramofScienceandTechnologyResearchofHebeiProvinceofChina(94122123)

摘　　要：The effect of cooling rate on structure and properties of wear-resistant low chromium cast iron after 40% hot deformation was investigated by metallographic and scanning electron microscope. The results show that the cooling rate is closely related to the structure and properties, and for the cast iron, the best comprehensive mechanical properties were obtained by forced air cooling with a cooling rate as about 7 ℃/s. The reason and regularity for the change of mechanical properties were analyzed.The effect of cooling rate on structure and properties of wear-resistant low chromium cast iron after 40% hot deformation was investigated by metallographic and scanning electron microscope. The results show that the cooling rate is closely related to the structure and properties, and for the cast iron, the best comprehensive mechanical properties were obtained by forced air cooling with a cooling rate as about 7 ℃/s. The reason and regularity for the change of mechanical properties were analyzed.

关 键 词：cooling rate hot deformation structure property wear resistance low chromium cast iron 

分 类 号：TG25[金属学及工艺—铸造] TF643[冶金工程—钢铁冶金]