庄俊杰,宋仁国,项南,宋若希,熊缨,胡强,王超

• 1:常州大学江苏省材料表面科学与技术重点实验室
• 2:宁波瑞隆表面技术有限公司
• 3:浙江工业大学机械工程学院

摘要(Abstract)：

在磷酸盐碱性电解液中加入氟锆酸钾(K_2ZrF_6),利用微弧氧化技术(MAO)在AZ31镁合金表面制备了陶瓷膜层,研究了电解液中K_2ZrF_6对MAO膜层的形貌、相组成和耐腐蚀性能等的影响。结果表明,电解液中添加K_2ZrF_6能使MAO膜层变得更加均匀,也降低了膜层的表面粗糙度,所形成的MAO膜层主要是由Mg O,Mg F2和Zr O2相组成。长时间浸泡和电化学测试结果表明,电解液中添加K_2ZrF_6提高了MAO膜层的耐蚀性。本实验电解液中添加2.5 g/L K_2ZrF_6时,所形成的MAO膜层的耐蚀性最好,而过高浓度K_2ZrF_6会对膜层的耐蚀性产生负作用。

关键词(KeyWords)： AZ31镁合金;氟锆酸钾;微弧氧化;显微结构;耐蚀性

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51371039);; 江苏省材料表面科学与技术重点实验室开放课题

作者(Author): 庄俊杰,宋仁国,项南,宋若希,熊缨,胡强,王超

DOI: 10.13289/j.issn.1009-6264.2016.09.028

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