| AZ 31镁合金锡化膜上化学镀Ni-P层性能的研究 |
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| 引用本文： | 袁亮,马立群,杨猛,秦铁男,王娟,丁毅.AZ 31镁合金锡化膜上化学镀Ni-P层性能的研究[J].电镀与环保,2010,30(6). |
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| 作者姓名： | 袁亮 马立群 杨猛 秦铁男 王娟 丁毅 |
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| 作者单位： | 南京工业大学材料科学与工程学院,江苏,南京,210009;南京工业大学材料科学与工程学院,江苏,南京,210009;南京工业大学材料科学与工程学院,江苏,南京,210009;南京工业大学材料科学与工程学院,江苏,南京,210009;南京工业大学材料科学与工程学院,江苏,南京,210009;南京工业大学材料科学与工程学院,江苏,南京,210009 |
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| 摘 要： | 将化学转化与化学镀镍相结合,对AZ 31镁合金先进行锡酸盐转化处理,再在锡化膜上化学镀Ni-P层。对锡化膜及化学镀Ni-P层的成分、结构和耐蚀性能进行了研究。结果表明:AZ 31镁合金基体表面所形成的锡化膜是由细小、均一的近似球状的微粒密积而成,微粒间存在的间隙可为后续化学镀Ni-P层提供良好的吸附条件,对改善镀层与基体间的结合力有一定的作用。在质量分数为3.5%的NaCl溶液中的阳极极化曲线表明:锡化膜上化学镀Ni-P层的耐点蚀性能好于化学镀Ni-P层的。环形阳极极化曲线及盐雾和浸泡实验显示:锡化膜上化学镀Ni-P层具有更好的耐中性NaCl点蚀性能。
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| 关 键 词： | 锡化膜 化学镀Ni-P 点蚀 环形阳极极化曲线 |
A Research on the Performance of Stannate Conversion Film plus Electroless Ni-P Coating on AZ 31 Magnesium Alloy |
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| YUAN Liang,MA Li-qun,YANG Meng,QIN Tie-nan,WANG Juan,DING Yi.A Research on the Performance of Stannate Conversion Film plus Electroless Ni-P Coating on AZ 31 Magnesium Alloy[J].Electroplating & Pollution Control,2010,30(6). |
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| Authors: | YUAN Liang MA Li-qun YANG Meng QIN Tie-nan WANG Juan DING Yi |
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| Affiliation: | YUAN Liang,MA Li-qun,YANG Meng,QIN Tie-nan,WANG Juan,DING Yi(College of Materials Science , Engineering,Nanjing University of Technology,Nanjing 210009,China) |
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| Abstract: | In order to improve the corrosion resistance of AZ 31 magnesium alloy,electroless Ni-P plating is combined with chemical conversion treatment,that is,the alloy is first treated with stannate conversion,and then electroless Ni-P plating is carried out on the conversion film.The compositions,structure and corrosion resistance of the conversion film and the electroless Ni-P coating were studied.The results show that stannate conversion film on the surface of AZ 31 magnesium alloy film is formed by small unifor... |
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| Keywords: | stannate conversion film electroless Ni-P plating pitting corrosion circular anodic polarization curves |
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