摘要
对钴基Ｓｔｅｌｌｉｔｅ合金Ｄ８０２焊条、镍基ＮＤＧ－２粉末、Ｄ５４７Ｍｏ焊条和Ｄ５０７Ｍｏ焊条制备的阀门密封面堆焊层，进行了从室温至６００℃的粘着磨损试验研究．结果表明：组对材料、组对方式和粘着磨损试验温度都会影响堆焊层的耐磨性．结合堆焊层的高温硬度试验、高温金相和电子金相分析，探讨了高温粘着磨损的机理．
The adhesive wear of the seal surface of the valve overlaid by cobaltbase electrode D802, nickle-base powder NDG-2, electrode D547Mo and D507Mo is tested from room temperature to 600℃. The testing results indicate that the mating materials, the mating type and the testing temperature of adhesive wear can affect the wear resistance of weld overlay. The mechanism of adhesive wear at high temperature is discussed by means of hardness tests at high temperature, metallographic analyses and SEM.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
1996年第8期120-124,共5页
Journal of Shanghai Jiaotong University
关键词
阀门密封面
堆焊材料
耐磨性
磨损
valve
weld overlay
wear resistance
adhesive wear
