摘要
分别在NiCrSiB和CuNiSiB自熔合金粉末中添加WC颗粒 ,利用氧乙炔焰粉末喷焊工艺制备覆层。用超声波振动气蚀仪研究覆层的耐气蚀性能 ,用扫描电镜观察覆层表面气蚀破坏形貌。结果表明 :复合覆层的耐气蚀能力比基体材料强。探讨了覆层的气蚀破坏机理。
The coatings were made by flame spray welding with self-fluxing alloy powder, NiCrSiB and CuNiSiB, in which WC particle was added. The coating's cavitation erosion was investigated with ultrasonic vibration cavitation instrument. The coating's cavitation erosion morphology was observed with SEM. Results show that the cavitation erosion resistance of composite coatings is better than that of base alloy. Cavitation erosion mechanism of the test coatings was also discussed.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
2002年第4期673-676,共4页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金资助项目 ( 5 98310 30 )
国家重点基础研究专项经费资助项目(G19990 6 5 0 )
