摘要
采用超音速火焰喷涂工艺制备了C-276哈氏合金涂层,同时对涂层的显微结构、显微硬度及耐磨性进行了研究.结果表明:涂层为层状结构且致密,与基体结合牢固;涂层与C-276合金粉末均以面心立方的γ相Ni-Cr-Co-Mo合金为主晶相,保持了喷涂粉末材料的性能,但喷涂过程中产生的氧化物与气孔影响了涂层的硬度及耐磨性.
A Hastelloy C-276 coating was prepared by HVOF（High Velocity Oxygen Fuel） process,and the microstructure,microhardness and wear resistance of the coating were demonstrated.The results revealed that the coating was layered and dense,firmly bonded to the substrate,the main crystalline phases of the coating and Hastelloy C-276 powder were both face-centered cubic γ phase structured Ni-Cr-Co-Mo alloy.The phase of coating remained to be consistent with that of spray powder.Nevertheless,the oxide and porosity generated during the spray process affected the hardness and wear resistance of the coating.
出处
《材料研究与应用》
CAS
2010年第3期207-210,共4页
Materials Research and Application
