摘要
研究了高锰钢在热变形过程中的组织变化规律。研究发现,铸态高锰钢中Mo、P元素在晶界处存在偏析,形成磷共晶组织,产生微裂纹。经过热压缩变形,组织得到细化,发生再结晶现象。同时磷共晶组织再结晶沿晶界析出,导致开裂,严重影响了高锰钢的可锻性能。
This paper researches the microstructure evolution of high manganese steel during thermal deformation. It is found that the Mo and P are segregated in the grain boundary of as-cast high manganese steel, which forms the iron phosphide eutectic and causes microcrack. After the hot compression deformation, the microstructure has been refined and the recrystallization has been appeared. However, the iron phosphide eutectic is precipitated along the grain boundary, which causes the cracking, and seriously affects the forging performances of high manganese steel.
出处
《大型铸锻件》
2013年第5期27-30,34,共5页
Heavy Casting and Forging
关键词
高锰钢
热变形
磷共晶
开裂
high manganese steel
thermal deformation
iron phosphide eutectic
cracking
