| 电沉积镀镍层的无铬钝化工艺 |
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| 引用本文： | 堵艳艳,潘勇,周兆锋,李玮,惠建科. 电沉积镀镍层的无铬钝化工艺[J]. 腐蚀与防护, 2012, 0(1): 60-63 |
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| 作者姓名： | 堵艳艳 潘勇 周兆锋 李玮 惠建科 |
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| 作者单位： | 湘潭大学材料与光电物理学院;湘潭大学低维材料及其应用技术教育部重点实验室 |
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| 基金项目： | 国家自然科学基金(No.11002121);湖南省科技重大专项(No.2009FJ1002) |
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| 摘 要： | 采用正交试验法筛选了一种以植酸、钼酸钠和缓蚀添加剂为基本组成的无铬钝化液。通过电化学阻抗谱测试,确定了最佳成膜时间;通过5%CuSO4点滴试验、10%NaCl浸泡试验和极化曲线测试,对电沉积镀镍层无铬钝化后的耐蚀性能进行了研究。结果表明,采用本无铬钝化工艺后,镀镍层耐蚀性能良好。
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| 关 键 词： | 镀镍层 耐腐蚀 无铬钝化 |
Chromate-free Passivation Technology for Electrodeposited Nickel Coating |
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| DU Yan-yan,PAN Yong,ZHOU Zhao-feng,LI Wei,HUI Jian-ke. Chromate-free Passivation Technology for Electrodeposited Nickel Coating[J]. Corrosion & Protection, 2012, 0(1): 60-63 |
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| Authors: | DU Yan-yan PAN Yong ZHOU Zhao-feng LI Wei HUI Jian-ke |
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| Affiliation: | 1,2(1.Faculty of Materials & Optoelectronics Physics,Xiangtan University,Xiangtan 411105,China;2.Key Laboratory of Low Dimensional Materials and Application Technology Ministry of Education,Xiangtan University,Xiangtan 411105,China) |
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| Abstract: | In order to improve the corrosion resistance of electrodeposited nickel coating and subsititute the carcinogenic hexavalent chromium passivation,a new chromate-free passivation solution was screened out by means of orthogonal analysis experiments.The solution was composed of phytic acid,sodium molybdate and corrosion inhibitor.The optimal time for conversion film formation was determined by electrochemical impedance spectroscopy.The corrosion resistant properties of electrodeposited nickel coating were studied by dropping corrosion test in 5% CuSO4,immersion test in 10% NaCl and polarization curves.The results showed that the film passivated by the technology has good anti-corrosion performance. |
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| Keywords: | nickel coating corrosion resistance chromate-free passivation |
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