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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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mg-11li-3al-0.5re合金在碱性nacl溶液中的腐蚀特性
Keywords: 材料失效与保护,mg-11li-3al-0.5re合金
Abstract:
？用静态失重法、动电位极化曲线和电化学交流阻抗谱等方法研究了mg-11li-3al-0.5re合金在碱性nacl溶液中的腐蚀行为,结果表明:在碱性nacl溶液中,随着cl-浓度的升高,合金的平均腐蚀速率增大,腐蚀电流增大,体系中rsolrt、rf减小,腐蚀严重;当溶液的碱性增强时,合金的点蚀电位正移,表面膜钝化作用增强,rf提高,同时rt和rsol增大,减缓了腐蚀的进行;在合金表面生成的腐蚀产物主要成分为mg(oh)2、al2o3和li2o2;mg-11li-3al-0.5re合金的腐蚀以点蚀为主,逐渐向基体内部和四周扩大,形成较深的蚀坑.
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