5052铝合金表面晶粒超细化后腐蚀性能研究
Study on Corrosion Property of 5052 Aluminium Alloy with Ultrafine-grained Surface
陈 渊, 尹志新, 樊新波
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作者单位：广西大学 机械工程学院, 广西 南宁 530004
中文关键字：铝合金； 表面晶粒超细化； 硬度； 超细晶
英文关键字：aluminum alloy; surface ultrafine-grained; hardness; ultrafine grain
中文摘要：对表面晶粒超细化和未经表面超细化处理的5052铝合金的样品分别进行仿海水腐蚀对比实验，在3.5%NaCl + 0.05%MgCl2 (原子分数)水溶液中分别测出不同表面晶粒尺寸的腐蚀速率。结果表明，5052铝合金表面晶粒超细化后抗蚀性能提高，其平均腐蚀速率与表面晶粒尺寸呈线性关系。
英文摘要：The corrosion tests of 5052 aluminium alloy with ultrafine-grained and non-treatment surface were carried out in the entironment of simulated sea. The corrosion rates were also measured in 3.5%NaCl + 0.05%MgCl2 (atomic percentage) solution. The results show that the corrosion property of 5052 aluminium alloy with ultrafine-grained surface improves. The average corrosion rate is linearly related to surface grain size.