鲁亮,阳超林,刘晓龙,薛文斌,赵衍华

• 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:首都航天机械公司

摘要(Abstract)：

利用搅拌摩擦技术对LD10铝合金板材进行焊接,观察了搅拌摩擦焊接头搅拌区、热机械影响区、热影响区及母材区的微观组织。通过浸泡试验、盐雾腐蚀试验、动电位极化和电化学阻抗谱评估了接头的腐蚀特性,分析了LD10铝合金搅拌摩擦焊接头腐蚀机理。发现搅拌摩擦焊接头区域的开路电位高于母材区,同时腐蚀电流密度小于母材区,且接头区域的容抗弧半径比母材区更大。LD10铝合金搅拌摩擦焊焊接接头耐蚀性好于铝合金母材,这同搅拌区晶粒细小和Cu Al2析出相分布均匀有关。

关键词(KeyWords)： 搅拌摩擦焊;LD10铝合金;焊接接头;腐蚀

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51071031);; 北京市自然科学基金(2102018,2122017);; 高等学校博士学科点专项科研基金(20120003110010)

作者(Author): 鲁亮,阳超林,刘晓龙,薛文斌,赵衍华

DOI: 10.13289/j.issn.1009-6264.2015.04.013

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