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Cl-含量对2A12铝合金腐蚀行为的影响

冯海涛,李涛,李晓刚,周建龙

Journal of Inner Mongolia University of Science and Technology（2010）

Cited 23|Views11
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Abstract
通过干湿周浸实验、扫描电镜观察和x射线衍射分析研究了2A12铝合金在NaCl的质量分数不同的NaCl溶液中的腐蚀行为与规律.实验结果表明,2A12铝合金在五种NaCl不同含量的NaCl溶液中周浸480 h后,腐蚀动力学均服从幂指数关系,腐蚀形态为明显的局部腐蚀,主要包括点蚀和晶间腐蚀.在NaCl的质量分数为5%的NaCl溶液中,点蚀深度达到极大值.各实验条件下,腐蚀产物组成基本一致,主要含有AlO(OH),AlCl3和Al2O3等.
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2a12 aluminum alloy,corrosion behavior
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