王吉会,杨静

• 1:天津大学材料科学与工程学院
• 2:天津大学材料科学与工程学院 天津300072
• 3:天津300072

摘要(Abstract)：

利用交流微弧氧化装置对AZ91D镁合金在硅酸盐体系中进行了微弧氧化处理,并通过扫描电镜、电化学测试技术和表面性能测试仪等研究了氧化时间和电流密度对微弧氧化膜层表面形貌、厚度、耐蚀性、摩擦磨损性能和结合力的影响。结果表明:随氧化时间和电流密度的增大,镁合金微弧氧化膜层中微孔的数量减少,但微孔的直径和表面粗糙度增大。膜层厚度随氧化时间和电流密度的增加呈线性增大,但与基体的结合力明显降低。镁合金微弧氧化膜层的耐蚀性和耐磨性随氧化时间和电流密度的增大呈先增大后减小的趋势。镁合金在硅酸盐体系中微弧氧化处理的最佳工艺为氧化时间40min、电流密度0.20A/cm2。

关键词(KeyWords)： 微弧氧化;硅酸盐体系;耐蚀性;摩擦磨损;结合力

Abstract:

Keywords:

基金项目(Foundation): 教育部留学回国人员科研启动基金资助项目(413175)

作者(Author): 王吉会,杨静

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