摘要
采用激光熔覆技术在镍基高温合金GH864表面制备了原位合成碳化物TiC、NbC陶瓷颗粒增强Ni_3Si金属间化合物基复合涂层。采用XRD、SEM和EDAX等方法,对熔覆层相、组织进行了表征。采用循环氧化法研究了熔覆层在1100℃下的高温抗氯化性能。
Ni3Si intermetaUic matrix composition coatings with in-situ TiC and NbC reinforcement were attained on the nickel-based superalloy substrate GH864 by laser cladding technique. The phase and the microstructure of cladding layers were characterized by XRD, SEM and EDAX. The oxidation resistance of clad layers was investigated by cyclic oxidation tests at the temperature 1100℃.
出处
《热加工工艺》
CSCD
北大核心
2007年第19期50-53,共4页
Hot Working Technology
基金
甘肃省科技攻关项目(2GS057-A52-001-03)
