DD5合金表面激光熔化沉积CoMoCrSi/Y2O3 复合涂层的微观组织与力学性能

刘伟军, 张广泰, 卞宏友, 于兴福, 王慧儒, 糟伊洁

Microstructure and Mechanical Properties of CoMoCrSi/Y2O3 Composite Coatings on DD5 Single Crystal Superalloy by Laser Melting Deposition

LIU Weijun, ZHANG Guangtai, BIAN Hongyou, YU Xingfu, WANG Huiru, ZAO Yijie

表1 DD5单晶合金基体和CoMoCrSi合金粉末的化学成分

Table 1 Chemical compositions of DD5 alloy substrate and CoMoCrSi alloy powders (mass fraction, %)

Material C Cr Co Mo W Al Fe Ta Hf Si Re Ni DD5 0.05 7.0 7.5 1.5 5.0 6.2 - 6.5 0.15 - 2.6 Bal. CoMoCrSi 0.07 15.75 Bal. 25.65 - - 1.35 - - 13.06 - 1.35