稀土元素对热轧辊用钢60CrMnMo热疲劳性能的影响  

EFFECT OF RARE EARTH ELEMENTS ON THERMAL FATIGUE OF HOT ROLLER STEEL 60CrMnMo

作　　者：杨庆祥[1] 吴浩泉[1] 丁柏群 郭景海[1] 

机构地区：[1]燕山大学

出　　处：《钢铁》1994年第5期50-54,共5页Iron and Steel

基　　金："七五"攻关课题

摘　　要：本文研究了稀土元素对热轧辊用钢６０ＣｒＭｎＭｏ热疲劳性能的影响，同时对不同稀土含量的６０ＣｒＭｎＭｏ钢高温短时拉伸件能和硬度进行了比较。试验结果表明：稀土元素可明显提高６０ＣｒＭｎＭｏ钢的热疲劳寿命和塑件，抑制６０ＣｒＭｎＭｏ钢的循环软化，并得出稀土元素的合适含量为０．０５％～０．１０％。AbstractThe effect of rare eatth (RE)addition on thermal fatigue of the hot roller steel 60CrMnMo was investigated.At the same time the high temperature short time tensile propersies and hard-ness with different RE addition of 60CrMnMo were compared.The results showed that by adding a certain amount of RE in steel 60CrMnMo,its life span about thermal fatigue and pla-sticity could be improved cons iderably.And its cycle soften can be restrained,thereby leading to the conclusion that optimum amount of RE addition is about 0.05～0.10%

关 键 词：60CRMNMO钢 稀土族 热疲劳 影响 

分 类 号：TG142.13[一般工业技术—材料科学与工程]