残余奥氏体对30CrMn2Si铸钢耐磨性影响  

Eeffects of Retained Austenite 0n Wear-resistance of 30CrMn2Si Steel

作　　者：谢敬佩[1] 林钢 杨如萍 宋延沛[1] 罗全顺[1] 

机构地区：[1]洛阳工学院,471039

出　　处：《热加工工艺》1997年第2期3-5,共3页Hot Working Technology

摘　　要：利用扫描电镜，结合计算机有限元计算研究了残余奥氏体对30CrMn2Si铸钢耐磨性影响。结果表明：在两体磨损条件下．残奥量为26％时耐磨性能最好；在三体冲击磨损条件下，冲击功为1．oJ，残奥在2．6％时耐磨性能最好；冲击功为4.OJ，残奥为2．25%时耐磨性能最好。二体磨损以犁沟和切削机制为主，三体磨损时磨损以凿削、疲劳机制为主。The effects of retainetd austenite (AR ) on wear- resistance of 3oCrMn2Si steel have been investigate-cl by means of SPM and computer. The results show that wear- rcslstance is highest with 2. 6 % AR under the condi-tion of two- body wear. The wear- reslstance is lnghest with AR(2. 6 %and l J impacl energy,AR2' 25 % and 4J impactenergy respectively under the condition of three - body wear.

关 键 词：30CrMn2Si钢 残余奥氏体 铸钢 耐磨性 

分 类 号：TG142.12[一般工业技术—材料科学与工程]