鲁亮,薛文斌,金小越,杜建成,李永良

• 1:北京师范大学核科学与技术学院射线束技术与材料改性教育部重点实验室
• 2:北京市辐射中心
• 3:北京师范大学分析测试中心

摘要(Abstract)：

采用微弧氧化技术在5083铝合金搅拌摩擦焊接头表面制备一层均匀的陶瓷膜。通过扫描电镜(SEM)、X射线衍射(XRD)和显微硬度测试分析了微弧氧化膜的形貌、相组成和显微硬度,并采用浸泡方法研究了微弧氧化膜对焊接接头耐腐蚀性能的影响。结果表明,接头表面微弧氧化膜均匀致密,铝合金焊缝区的显微硬度低于母相区,但微弧氧化膜的硬度比铝合金基体提高一个数量级,并且不同区域对应的微弧氧化膜硬度相同。在0.2 mol/L NaHSO3+0.6 mol/L NaCl溶液中浸泡3天后,未氧化处理的焊接样品表面出现孔蚀,而微弧氧化处理的样品表面没有观察到腐蚀迹象。

关键词(KeyWords)： 微弧氧化;陶瓷膜;搅拌摩擦焊;5083铝合金

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51071031);; 北京市自然科学基金项目(2102018)

作者(Author): 鲁亮,薛文斌,金小越,杜建成,李永良

DOI: 10.13289/j.issn.1009-6264.2011.11.027

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