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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effect of in-situ micro-arc oxidation coating on the galvanic corrosion of AZ31Mg coupled to aluminum alloys
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Effect of in-situ micro-arc oxidation coating on the galvanic corrosion of AZ31Mg coupled to aluminum alloys

机译：原位微弧氧化涂层对AZ31MG电硅腐蚀耦合铝合金的影响

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摘要

Micro-arc oxidation (MAO) corrosion-resistant coating was prepared on AZ31Mg with MAO technique, and galvanic corrosion performance of the coated AZ31Mg coupled to 2024Al and 7075Al was studied. The results showed that the MAO coating can significantly protect AZ31Mg from galvanic corrosion and crevice corrosion. The lifetime of AZ31Mg with MAO coating coupled to 2024Al and 7075Al was 2184 h and 1800 h, respectively, when the surface corrosion morphology rating was 5. While it was only 264 h and 240 h for AZ31Mg. The MAO coating made the constraint of life-span of the coupled components changing from the anode corrosion of AZ31Mg to the corrosion of aluminum alloys and decreased the mass loss rate of the components greatly. This work had significant meaning to the applications of Mg alloys. (C) 2018 Elsevier B.V. All rights reserved.
机译：用MAO技术对AZ31MG制备微弧氧化（MAO）耐腐蚀涂层，研究涂覆的AZ31mg和7075al的涂覆的AZ31mg的电致腐蚀性能。 结果表明，毛涂层可显着保护Az31mg免受电抗腐蚀和缝隙腐蚀。 当表面腐蚀形态等级为5.虽然，当表面腐蚀形态等级为5.虽然，当表面腐蚀形态等级为2184 h和1800小时，但分别为2184小时和1800小时，而AZ31mg仅为264小时和240小时。 MaO涂层使偶联部件的寿命的约束从AZ31mg的阳极腐蚀改变为铝合金的腐蚀并大大降低了组分的质量损失率。 这项工作对Mg合金的应用具有重要意义。 （c）2018年elestvier b.v.保留所有权利。

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