董必成,张详浩,胡志华,马冬威,罗成,王天国

• 1:湖北汽车工业学院材料科学与工程学院

摘要(Abstract)：

采用多弧离子镀在烧结Nd-Fe-B磁体表面制备了铝薄膜，研究沉积时间和热处理温度对薄膜性能和微观结构的影响。利用扫描电镜和X射线衍射仪分析薄膜的微观结构和物相组成，通过涂层附着力自动划痕仪和电化学工作站测试薄膜与基体间的结合力以及耐腐蚀性能。结果表明：随着沉积时间增加，铝薄膜平均厚度增加，当沉积时间为20 min时，薄膜的耐腐蚀性能最佳；铝薄膜表面存在菜花状液滴堆叠现象，其液滴直径随沉积时间增加而降低。非真空热处理后薄膜表面颗粒熔化和长大，菜花状液滴堆叠现象消失；随着热处理温度升高，铝薄膜的腐蚀电流密度先减小后略微增大；热处理温度为530℃时，腐蚀电流密度最小，沉积铝薄膜磁体的耐腐蚀性能得到改善。

关键词(KeyWords)： 烧结钕铁硼磁体;多弧离子镀;铝薄膜;非真空热处理;耐腐蚀性能

Abstract:

Keywords:

基金项目(Foundation): 新能源汽车关键材料湖北省重点实验室开放基金项目(QCCLSZK2021B02);; 大学生创新创业训练计划项目(DC2020050)

作者(Author): 董必成,张详浩,胡志华,马冬威,罗成,王天国

DOI: 10.13289/j.issn.1009-6264.2023-0187

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