| AZ91D镁合金表面环保型钙系磷化膜的制备及其耐蚀性 |
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| 引用本文： | 王鹏飞,隆佳,孙瑞雪.AZ91D镁合金表面环保型钙系磷化膜的制备及其耐蚀性[J].青岛化工学院学报(自然科学版),2014(5):485-488. |
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| 作者姓名： | 王鹏飞 隆佳 孙瑞雪 |
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| 作者单位： | 青岛科技大学材料科学与工程学院,山东青岛266042 |
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| 基金项目： | 山东省优秀中青年科学家科研奖励基金项目（BS2010CL018）. |
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| 摘 要： | 采用化学转化处理的方法,在AZ91D镁合金的表面制备了均匀致密的钙系磷化膜,其中磷化液配方中不含铬、氟及亚硝酸盐等对环境有害的离子.通过场发射扫描电子显微镜和X射线衍射仪研究了磷化时间及温度对磷化膜结构和相组成的影响.结果表明：磷化时间为20 min,磷化温度为40℃时,所得到的磷化膜的致密性和均匀性较好.与空白基体相比,经磷化处理后的镁合金在3.5 ％NaCl溶液中的耐腐蚀性能明显提高.
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| 关 键 词： | 镁合金 钙系磷化膜 耐蚀性 电化学测试 |
Preparation and Corrosion Resistance of an Environment-friendly Phosphate Conversion Coating on AZ91D Alloy |
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| WANG Peng-fei,LONG Jia,SUN Rui-xue.Preparation and Corrosion Resistance of an Environment-friendly Phosphate Conversion Coating on AZ91D Alloy[J].Journal of Qingdao Institute of Chemical Technology(Natural Science Edition),2014(5):485-488. |
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| Authors: | WANG Peng-fei LONG Jia SUN Rui-xue |
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| Institution: | (College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China) |
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| Abstract: | An environment-friendly phosphate conversion coating free of chromate, fluorides, and nitrite was developed on AZ91D alloy through a facile chemical deposition method. Influence of phosphating time and temperature on the morphology and phase composition of magnesium alloy was investigated by field emission scanning electron microscopy and X-ray diffraction （XRD）. The results indicated that when the phosphating time was 20 min and temperature was 40 ℃, the phosphate coating was dense and uniform. Compared with the bare AZ91D substrate, the corrosion resistance of the phosphate coating was improved greatly in 3.5 % NaCl solution. |
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| Keywords: | magnesium alloy calcium phosphate coating corrosion resistance electrochemical test |
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