镍基合金表面激光熔覆钴基合金的显微组织与硬度

Microstructure and hardness of the laser cladding Co-based alloy coating on the surface of Ni-based alloy

摘要:

采用激光熔覆技术在镍基高温合金表面制备了钴基熔覆层,用SEM,EDS和显微硬度计对熔覆层进行了测试分析.结果表明,用钴基自熔合金粉末所制备的熔覆层表面平整无裂纹、完整性好,熔覆层与基体之间形成良好的冶金结合,熔覆层的显微硬度约为基体硬度的3倍.

Abstract: