Alloying Effect of Lanthanum in GCr15 Bearing Steel with Tin and Antimony
来源期刊：JOURNAL OF RARE EARTHS2007年增刊第1期
论文作者：Zhao Yabin Xiao Jiguang Li Changrong Wang Fuming
Key words：tramp element; hot ductility; GCr15 beating steel; rare Earth elements;
Abstract: Effect of tin and antimony on hot ductility of GCr15 bearing steel as well as interaction between lanthanum and tramp dements, were studied by simulator Gleeble-1500 and the fractures for the tested steels were analyzed using SEM and EDS. The results show that with increasing contents of tin and antimony elements, the hot ductility of GCr15 beating steel was decreased. Lanthanum can reduce the harmful effect of tramp elements on the hot ductility of GCr15, which can react with antimony to form compound and segregate at grain boundary in steel. Lanthanum can refine the recrystallized austenite grains after deformation and subsequent martensite structure.
Zhao Yabin1，Xiao Jiguang1，Li Changrong3，Wang Fuming1
(1.School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;
2.Shaoguan Iron & Steel Group Co., limited, Guangdong 512123, China;
3.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China)
Abstract:Effect of tin and antimony on hot ductility of GCr15 bearing steel as well as interaction between lanthanum and tramp dements, were studied by simulator Gleeble-1500 and the fractures for the tested steels were analyzed using SEM and EDS. The results show that with increasing contents of tin and antimony elements, the hot ductility of GCr15 beating steel was decreased. Lanthanum can reduce the harmful effect of tramp elements on the hot ductility of GCr15, which can react with antimony to form compound and segregate at grain boundary in steel. Lanthanum can refine the recrystallized austenite grains after deformation and subsequent martensite structure.
Key words:tramp element; hot ductility; GCr15 beating steel; rare Earth elements;
【全文内容正在添加中】
