摘要
在42CrMo钢中分别加入不同量的La制取试样,通过对晶粒度、金相组织、力学性能、断口等进行分析,结果表明:加入少量稀土元素La,晶粒减小,组织得到细化,大大改善了力学性能。
Test specimens have been made by adding different amounts of La into 42 CrMo,and by analyzing grain size,metallographic structure,mechanical performance,fracture and other indexes,it concluded that a little increment of rare earth element La could obtain smaller grain size and refining structure to improve mechanical performance of 42 CrMo evidently.
出处
《中国重型装备》
2017年第3期31-33,共3页
CHINA HEAVY EQUIPMENT
