| 镁合金浸锌合金溶液中金属离子对浸锌层的影响 |
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| 引用本文： | 孙忠武,钱建刚,黄巍,李莉娜. 镁合金浸锌合金溶液中金属离子对浸锌层的影响[J]. 材料保护, 2009, 42(1) |
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| 作者姓名： | 孙忠武 钱建刚 黄巍 李莉娜 |
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| 作者单位： | 1. 北京航空航天大学材料科学与工程学院,北京,100083
2. 北京承轩恒安科技有限公司,北京,100022 |
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| 摘 要： | 镁合金电镀或化学镀之前一般均需要进行浸锌处理,浸锌层的质量直接影响到镀层和基体间的结合力,也关系到镀层的耐蚀性等.为提高镀层的结合力与耐蚀性,采用扫描电子显微镜(SEM)、能谱仪(EDS)、塔菲尔极化曲线等方法,对比研究了一元Zn,二元Zn-Fe,Zn-Ni,Zn-Co,Zn-Cu以及三元Zn-Ni-Fe等浸锌工艺在AZ91D镁合金上获得的浸锌层,并详细分析了各种金属离子对浸锌层形成过程的影响.结果表明:Ni2+的加入既能提高镀层的覆盖率,又能使镀层结合力提高;Fe3+的加入可以细化浸锌层的晶粒;Cu2+的加入可以提高镀层的覆盖率,使浸锌铜镀层的覆盖率达到了99.1%;Co2+对镀层的性能有不好的影响,既降低了镀层的覆盖度,又降低了镀层的结合力.
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| 关 键 词： | 浸锌 化学镀 镁合金 耐蚀性 |
Coatings and Corrosion Resistance of Follow-Up Electroless or Electroplated Coatings on Magnesium Alloy |
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| SUN Zhong-wu,QIAN Jian-gang,HUANG Wei,LI Li-na. Coatings and Corrosion Resistance of Follow-Up Electroless or Electroplated Coatings on Magnesium Alloy[J]. Journal of Materials Protection, 2009, 42(1) |
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| Authors: | SUN Zhong-wu QIAN Jian-gang HUANG Wei LI Li-na |
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| Affiliation: | SUN Zhong-wu1,QIAN Jian-gang1,HUANG Wei2,LI Li-na1(1.School of Materials Science , Engineering,Beijing Univer-sity of Aeronautics , Astronautics,Beijing 100083,China,2.Beijing Chengxuanhengan Science , Technology Company Ltd.,Beijing 100022,China) |
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| Abstract: | Zinc-immersed coatings were prepared on AZ91D magnesium alloy substrates using zinc immersion processes of zinc alone,binary Zn-Fe,Zn-Ni,Zn-Co,and Zn-Cu,and ternary Zn-Ni-Fe,aiming at improving the adhesion to substrate and cor-rosion resistance of follow-up electroless or electroplated coat-ings.The effects of various metal ions used in zinc-immersion processes on the formation of immersed zinc coating and the adhe-sion strength and corrosion resistance of follow-up electroless or electroplated coatings we... |
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| Keywords: | zinc immersion electroless plating magnesium alloy corrosion resistance |
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