Corrosion and tribological behaviour of electroless Ni–P/nano-SiC composite coating on aluminium 6061
Corrosion and tribological behaviour of electroless Ni–P/nano-SiC composite coating on aluminium 6061
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DOI：
10.1179/1743294415y.0000000012
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发表时间：
2015-01
影响因子：
2.8
通讯作者：
R. Soleimani;F. Mahboubi;M. Kazemi;S. Arman
中科院分区：
文献类型：
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作者：
R. Soleimani;F. Mahboubi;M. Kazemi;S. Arman
采用化学镀方法在6061铝合金表面成功制备了Ni-P/纳米SiC复合镀层。利用扫描电子显微镜、能谱仪和维氏硬度计研究了纳米SiC颗粒加入对复合材料形貌和硬度的影响。采用销盘摩擦磨损试验研究了涂层的摩擦学性能。此外，采用动电位极化曲线和电化学阻抗谱研究了6061铝合金防护涂层在3.5wt-%NaCl溶液中的腐蚀行为。结果表明，碳化硅纳米粒子的加入提高了复合涂层的耐腐蚀性和摩擦学性能。
Ni–P/nano-SiC composite coating was successfully deposited on 6061 aluminium alloy by electroless coating process. Scanning electron microscopy equipped with energy dispersive spectroscopy as well as Vickers hardness tester was utilised to examine the effect of nano-SiC particle incorporation on the morphological and hardness properties. Pin on disc method was applied to investigate the tribological properties of the coatings. Moreover, the corrosion behaviour of coatings for the protection of 6061 aluminium alloy in 3·5 wt-%NaCl solutions was studied using potentiodynamic polarisation and electrochemical impedance spectroscopy. Results showed that incorporation of silicon carbide nanoparticles in the coatings enhances the corrosion and tribological properties of the composite coatings.