雷志文,邢保英,何晓聪,曾凯,赵腾飞

• 1:昆明理工大学机电工程学院

摘要(Abstract)：

为探究酸性腐蚀工况下异质压印接头的力学性能，将通过圆形模具压印连接的铝AA5052与钢DP590试件置于0.02 mol·L~(-1) NaHSO_3溶液中进行周浸腐蚀试验，在腐蚀不同周期后取出称重，并进行静力学拉伸-剪切试验。腐蚀试验结果表明，腐蚀周期越长，腐蚀产物越多，试件的失重量越大，腐蚀速率则越低。静力学试验结果表明，接头的失效形式发生改变，经腐蚀后的试件皆为颈部完全断裂且铆扣部分被拉出失效，且拉伸失效形式的改变与腐蚀周期的长短无关；接头静强度呈先增大后减小的变化趋势，且增大速率明显大于减小速率；能量吸收值呈先上升后下降的趋势。

关键词(KeyWords)： 酸性腐蚀;压印;周浸试验;力学性能;失效形式

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助项目(52065034);; 云南省应用基础研究计划青年项目(14051848)

作者(Author): 雷志文,邢保英,何晓聪,曾凯,赵腾飞

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