孙硕,宋贡生,马正华.预化学镀镍时间对铝基化学镀镍层性能的影响[J].表面技术,2016,45(1):49-54.
SUN Shuo,SONG Gong-sheng,MA Zheng-hua.Effect of Electroless Nickel Pre-plating Time on Properties of Electroless Nickel on Aluminum[J].Surface Technology,2016,45(1):49-54 |
| 预化学镀镍时间对铝基化学镀镍层性能的影响 |
| Effect of Electroless Nickel Pre-plating Time on Properties of Electroless Nickel on Aluminum |
| 投稿时间：2015-10-08 修订日期：2016-01-20 |
| DOI：10.16490/j.cnki.issn.1001-3660.2016.01.008 |
| 中文关键词: 预化学镀镍 前处理 铝基 化学镀镍 性能 表面形貌 结合力 耐蚀性 |
| 英文关键词:electroless nickel pre-plating pretreatment aluminum electroless nickel properties surface morphology adhesion corrosion resistance |
| 基金项目:辽宁省教育厅科研项目(L2015392);2015 年辽宁省大学生创新创业训练计划项目(201510142000055);国家科技基础条件平台建设项目(2005DKA10400-15-Z04) |
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| 中文摘要: |
| 目的 揭示试样的显微形貌随预化学镀镍时间的变化规律,并探讨试样的显微形貌、镀层的结合强度及耐蚀性能的相关性。 方法 以预化学镀镍时间为变量,通过化学沉积方法制得化学镀镍层。 采用扫描电镜观察预镀层及化学镀镍层的表面形貌,采用热震试验、弯曲试验和划格试验测试镀层的结合力,并对化学镀镍层与铝基体之间的结合力进行评价。 采用电化学方法对镀层在模拟燃料电池腐蚀介质中的耐蚀性进行评价。 结果 随着预化学镀镍时间的延长,颗粒尺寸不断增大,预化学镀镍层形貌先逐渐变得均匀、致密,之后又变得粗糙不均匀。 化学镀镍层的耐蚀性以及与基体的结合力呈现出先增加后降低的趋势。 结论 预化学镀镍时间在 5 min 时,所得化学镀镍层的表面形貌最平整,结合力最好,耐蚀性最佳。 |
| 英文摘要: |
| Objective To reveal the variation trend of surface morphology of the sample along with the different pre-plating time and discuss the correlations between surface morphology, adhesion of coatings with aluminum matrix, and corrosion resistance. Methods Electroless nickel coatings were prepared by chemical deposition at different pre-plating time. The surface morphology of coatings was characterized by SEM. The adhesion of coatings with aluminum matrix was determined and evaluated by bending test, thermal shock test and scribe test. And the corrosion resistance of coatings in a simulated fuel cell corrosion medium was also characterized by the electrochemical workstation. Results With the electroless nickel pre-plating time increasing,the surface morphology of pre-plating nickel coating gradually became dense and uniform. And the particle size of pre-plating coating became bigger. Electroless nickel coating first became smooth and then rough,and its corrosion resistance and adhesion with matrix also first increased and then decreased with the electroless nickel pre-plating time increasing. Conclusion The best surface morphology,corrosion resistance and the maximum adhesion of the coating was obtained at 5 min of electroless nickel pre-plating time. |
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