摘要
利用ＣＯ_２连续激光器，对耐热铸铁表面进行了Ｎｉ基ＷＣ、Ｎｉ基ＷＣ中加入少量稀土元素ＣｅＯ_２等合金粉末的激光熔敷，研究了不同成分激光熔敷层的高温硬度、高温干磨擦磨损性能，对摩擦磨损后的表面形貌进行了分析研究。试验结果表明Ｎｉ２１＋２０％ＷＣ＋０．５％ＣｅＯ_２熔覆层的高温性能较好。
In this paper,two Ni-base WC coatings with and without rare earth element (CeO_2) were remelted on the surface of a heat-resistant cast iron by high power CO_2 laser. Their hardness and friction and wear behaviors at high temperature were investigated. The surface morphologies after wear were analysed by SEM. The results showed that the coating of Ni21+20%WC +0.5%CeO_2 displays the optimum high temperature performance.
出处
《中国表面工程》
EI
CAS
CSCD
1999年第1期25-29,共5页
China Surface Engineering
关键词
激光熔敷
高温
磨擦磨损性能
镍基合金层
Laser remelted alloy coating, Hardness of high temperature abrasive-wear at high temperature
