M5-36-11No.20.5D风机轴断裂分析  

Fracture Analysis on M5-36-11No.20.5D Fan Shaft

作　　者：史月丽[1] 周华茂[1] 单丽云 曹炜[1] 孙智[1] 

机构地区：[1]中国矿业大学机电与材料工程学院,徐州221008

出　　处：《金属热处理》2002年第12期50-52,共3页Heat Treatment of Metals

摘　　要：通过观察断裂风机轴裂纹宏观和微观形貌 ,检验化学成分、显微硬度等方法对风机轴断裂的原因进行了分析。结果表明 。Fracture analysis of the fan shaft was made by observing macroscopic and microscopic appearances of the crack,and examining micro hardness and chemical composition of the material.The result shows that the main reason for the fracture of the shaft is low stress fatigue resulting from the welding defect in the surface of the fan shaft.

关 键 词：风机轴 低应力疲劳 焊接缺陷 

分 类 号：TG111.91[金属学及工艺—物理冶金]