| 镁合金AZ91D化学镀前处理工艺的研究 |
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| 引用本文： | 杨金花,俞宏英,孙冬柏,孟惠民.镁合金AZ91D化学镀前处理工艺的研究[J].电镀与涂饰,2008(11). |
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| 作者姓名： | 杨金花 俞宏英 孙冬柏 孟惠民 |
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| 作者单位： | 北京科技大学腐蚀与防护中心,北京,100083 |
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| 基金项目： | 北京市教委共建计划
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| 摘 要： | 通过正交试验研究了镁合金AZ91D化学镀酸洗液中各因素对试样表面状态、镀速、自腐蚀电流密度的影响,讨论了活化时间对基体表面状态的影响,测试了镁合金化学镀后的耐蚀性和耐磨性.得到了镁合金酸洗的最佳工艺:240 g/L CrO3,40mL/LHNO3(W=68%),酸洗时间30 S.最佳工艺所得镁合金AZ91D化学镀Ni-P镀层的耐蚀性和耐磨性得到了显著提高.
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| 关 键 词： | 镁合金 化学镀镍 前处理 酸洗 活化 耐蚀性 耐磨性 |
Investigation of pretreatment process for electroless plating on AZ91D magnesium alloy |
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| YANG Jin-hua,YU Hong-ying,SUN Dong-bai,MENG Hui-min.Investigation of pretreatment process for electroless plating on AZ91D magnesium alloy[J].Electroplating & Finishing,2008(11). |
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| Authors: | YANG Jin-hua YU Hong-ying SUN Dong-bai MENG Hui-min |
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| Affiliation: | YANG Jin-hua,YU Hong-ying,SUN Dong-bai,MENG Hui-min Beijing University of Science , Technology Corrosion , Protection Center,Beijing 100083,China |
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| Abstract: | The influential factors for acid pickling solution of electroless plating on AZ91D magnesium alloy on the sample surface state,plating rate and corrosion current density were studied by orthogonal test. The influence of activation time on matrix surface state was discussed and the corrosion resistance and wear resistance of electrolessly plated magnesium alloy were tested. The optimal acid pickling process for magnesium alloy was obtained as follows: 240 g/L CrO3,40 mL/L HNO3 (mass fraction 68%),and picklin... |
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| Keywords: | magnesium alloy electroless nickel plating pretreatment acid pickling activation corrosion resistance wear resistance |
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