| 超声作用对镁合金表面电沉积层组织与性能的影响 |
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| 引用本文： | 吴化,李雪松,赵国良,杨悦. 超声作用对镁合金表面电沉积层组织与性能的影响[J]. 材料热处理学报, 2011, 32(3) |
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| 作者姓名： | 吴化 李雪松 赵国良 杨悦 |
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| 作者单位： | 长春工业大学先进结构材料省部共建教育部重点实验室,吉林,长春,130012 |
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| 摘 要： | 通过设计中间过渡层,缩小AZ91D镁合金与沉积层镍之间的电位差,并以碱性锡酸盐镀液代替对人体和环境均有害的氰化物镀液,配合超声波作用,在AZ91D镁合金表面获得了电沉积镍层.利用SEM观察沉积层表面微观形貌,XRD、XPS对各处理层进行相组成检测.分析了锡酸盐镀液代替氰化物镀液对沉积层质量的影响,超声波对各沉积层沉积过程的影响以及对沉积层组织的细化作用.结果表明:碱性锡酸盐的使用提高了镀液的pH值,与酸性镀液相比较,减缓了镁合金在镀液中的腐蚀速率,为电沉积镍层在其表面的获得奠定了良好基础;各沉积层获得过程中,超声波的使用明显细化了各沉积层的组织,提高了其致密性,镀层的择优取向和耐腐蚀性能也得到改善.
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| 关 键 词： | AZ91D镁合金 电沉积 锡酸盐 超声波 |
Effects of ultrasonic agitation on microstructure and properties of electrodeposited layer on magnesium alloy |
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| WU Hua,LI Xue-song,ZHAO Guo-liang,YANG Yue. Effects of ultrasonic agitation on microstructure and properties of electrodeposited layer on magnesium alloy[J]. Transactions of Materials and Heat Treatment, 2011, 32(3) |
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| Authors: | WU Hua LI Xue-song ZHAO Guo-liang YANG Yue |
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| Affiliation: | WU Hua,LI Xue-song,ZHAO Guo-liang,YANG Yue(Key Laboratory of Advanced Structural Materials,Ministry of Education,Changchun University of Technology,Changchun 130012,China) |
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| Abstract: | To reduce the potential difference between AZ91D magnesium alloy and deposited nickel layer,intermediate layer was designed in the present study.In consideration of the harm to human body and environment,the cyanide bath was replaced by alkaline stannate bath and the nickel layer was electrodeposited on the surface of AZ91D magnesium alloy with the aid of ultrasonic agitation.Phases and microstructure of the deposited layers were analyzed by scanning electron microscopy(SEM),X-ray diffraction(XRD),and X-ray... |
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| Keywords: | AZ91D magnesium alloy stannate ultrasonic agitation corrosion resistance |
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