表面技术Issue(4)：23-26,31,5.DOI:10.16490/j.cnki.issn.1001-3660.2015.04.004
温度对化学镀Ni-P合金层形貌、硬度及耐蚀性的影响
Influence of Plating Temperature on the Morphology, Hardness and Corrosion Resistance of Electroless Ni-P Alloy Plating
摘要
Abstract
ABSTRACT:Objective The variation trend of surface morphology of the Ni-P alloy coating was studied in the plating temperature range of 70~95 ℃. In addition, the correlations between alloy hardness, corrosion resistance and surface morphology were dis-cussed. Methods Ni-P alloy coatings were prepared by chemical deposition at different plating temperatures. The surface morpholo-gy of Ni-P coatings was characterized by SEM. The hardness of Ni-P coatings was determined. And the corrosion resistance of Ni-P coatings was also characterized by the relative corrosion rate through soaking the samples in chlorhydric acid. Results In the plat-ing temperature range of 70~95 ℃, with the increase of the deposition temperature, the surface morphology of Ni-P coatings ten-ded to be denser and smoother at first and then surface coarsening occurred. Both the hardness and corrosion resistance of the Ni-P coatings first increased and then decreased with the increasing deposition temperature. The best surface morphology and the maxi-mum hardness were obtained at 85 ℃ and the deposition temperature range for good corrosion resistance was 85~90 ℃. Conclu-sion The Ni-P coatings with flat, dense and smooth surface, high hardness and good corrosion resistance were prepared at 85℃ for 3 h when the solution pH value was 4. 5±0. 1.关键词
化学镀/Ni-P合金/镀层形貌/耐蚀性/硬度Key words
electroless plating/Ni-P alloy/coating morphology/corrosion resistance/hardness分类
化学化工引用本文复制引用
金永中,杨奎,曾宪光,倪涛,丁松..温度对化学镀Ni-P合金层形貌、硬度及耐蚀性的影响[J].表面技术,2015,(4):23-26,31,5.基金项目
四川省教育厅科研项目(12ZB077) （12ZB077）
材料腐蚀与防护四川省重点实验室项目(2013CL06)Fund：Supported by Research Project of Sichuan Provincial Education Department (12ZB077) and Key Laboratory of Material Corrosion and Protection of Si-chuan Province (2013CL06) （2013CL06）
