Effects of nano-diamond particles on the structure and tribological property of Ni-matrix nanocomposite coatings
Effects of nano-diamond particles on the structure and tribological property of Ni-matrix nanocomposite coatings
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DOI：
10.1016/j.msea.2004.08.033
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发表时间：
2005-01
期刊：
影响因子：
6.4
通讯作者：
Liping Wang;Y. Gao;Q. Xue;Huiwen Liu;T. Xu
中科院分区：
文献类型：
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作者：
Liping Wang;Y. Gao;Q. Xue;Huiwen Liu;T. Xu
以含有纳米金刚石颗粒的瓦特型电解液为原料，采用常规电沉积方法制备了微晶镍（m-Ni）和纳米晶镍（n-Ni）基复合镀层。比较研究了纳米金刚石颗粒对两种不同镍基复合材料显微组织、表面形貌、显微硬度和耐磨性的影响。我们目前的研究表明，在间镍基体的情况下，纳米金刚石颗粒的加入显着影响相应复合材料的微观结构、机械和摩擦学性能。然而，对于n-Ni基体，上述性能仅受到纳米金刚石颗粒的存在的轻微影响，并且在干滑动磨损条件下，n-Ni基复合材料的耐磨性能比纯n-Ni差得多。
Microcrystalline Ni (m-Ni) and nanocrystalline Ni (n-Ni) based composite coatings were prepared by a conventional electrodeposition method from a Watts-type electrolyte containing nano-diamond particles. Effects of nano-diamond particles on the microstructure, surface morphology, microhardness and wear resistance of two different Ni-matrix composites were investigated comparatively. Our present study shows that in the case of m-Ni matrix, the incorporation of nano-diamond particles significantly affects the microstructure, mechanical and tribological properties of corresponding composites. As to the n-Ni matrix, however, above properties were only slightly affected by the presence of nano-diamond particles, and the n-Ni matrix composites exhibit much poorer anti-wear performance than pure n-Ni under dry sliding wear conditions.