中国激光, 2009, 36 (8): 2187, 网络出版: 2009-08-13
镁合金表面激光熔覆Ni-Zr-Al合金涂层成分设计与组织性能
Composition Design and Properties of Laser Clad Ni-Zr-Al Alloy Coating on the Magnesium Surface
激光技术 激光熔覆 成分设计 镁合金 镍基合金 显微组织 性能 laser technique laser cladding composition design magnesium alloy Ni-based alloy microstructure properties
摘要
基于团簇线判据优化设计Ni-Zr-Al合金成分的基础上, 采用激光熔覆技术在AZ91 HP镁合金表面制备了Ni60.2Zr33.8Al6合金涂层。结果表明, 由于所设计的镍基合金具有低的熔点和良好的润湿性能, 致使合金涂层与镁合金基体之间实现了良好的冶金结合。合金涂层主要是由非晶相,Ni21Zr8和Ni10Zr7金属间化合物构成。由于非晶和金属间化合物复合增强作用及其高的化学稳定性, 致使合金涂层具有高的硬度、良好的耐磨和耐蚀性能。
Abstract
Based on optimum design of Ni-Zr-Al alloy composition using the cluster line criterion, the Ni60.2Zr33.8Al6 alloy coating is prepared by laser cladding on the magnesium surface. The result shows that the excellent metallurgical bonding between the coating and substrate is formed due to low melting point and good wettability of the Ni-based alloy. The coating mainly consists of amorphous, Ni21Zr8 and Ni10Zr7 phases. The composite strengthening and high chemical stability make the coating exhibit high hardness, good wear and corrosion resistances.
陈永哲, 王存山, 李婷, 姚标. 镁合金表面激光熔覆Ni-Zr-Al合金涂层成分设计与组织性能[J]. 中国激光, 2009, 36(8): 2187. Chen Yongzhe, Wang Cunshan, Li Ting, Yao Biao. Composition Design and Properties of Laser Clad Ni-Zr-Al Alloy Coating on the Magnesium Surface[J]. Chinese Journal of Lasers, 2009, 36(8): 2187.
PDF全文
