Synthesis of Ni-Al-Ta composite coatings on Al alloy plates and the transfer of Al powder via mechanical milling technique
Synthesis of Ni-Al-Ta composite coatings on Al alloy plates and the transfer of Al powder via mechanical milling technique
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DOI：
10.1016/j.powtec.2018.09.024
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发表时间：
2018-12
影响因子：
5.2
通讯作者：
Chen Yan;D. Xiong;Jianliang Li
中科院分区：
文献类型：
--
作者：
Chen Yan;D. Xiong;Jianliang Li
本文采用机械铣削技术在铝合金基体上成功制备了Ni-Al-Ta复合镀层。研究了涂层的显微组织、相组成、摩擦学性能和Al粉末的转移。结果表明，复合涂层的显微硬度高于Al基体，特别是在涂层中添加10%和15%的Ta，复合涂层对Al基体具有良好的保护作用。从Al， Al3Ni, Al3Ni2， AlNi和Ni的演变可以得出Al元素的含量（at.%）为：复合涂层 > 粗颗粒（+80 目） > 细颗粒（- 80 目）。
In the present work, Ni-Al-Ta composite coatings were successfully fabricated on Al alloy substrate by mechanical milling technique. The microstructure, phase composition, tribological properties of coatings and the transfer of Al powder have been studied. It was found that the microhardness of the coatings were higher than the Al substrate, especially 10% and 15% Ta were added into the coating, and the composite coatings demonstrated excellent protective effect to the Al substrate. From the evolution of Al, Al3Ni, Al3Ni2, AlNi and Ni to conclude the content of Al element (at.%) is: composite coating > coarse particle (+80 mesh) > fine particle (−80 mesh).