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耐腐蚀镁合金的成分设计方法研究进展

Research Progress on Design of Corrosion Resistant Mg Alloys

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【作者】 张弛王俊升李鑫田光元王硕苏辉

【Author】 ZHANG Chi;WANG Junsheng;LI Xin;TIAN Guangyuan;WANG Shuo;SU Hui;School of Materials Science and Engineering,Beijing Institute of Technology;Advanced Research Institute of Multidisciplinary Science,Beijing Institute of Technology;

【通讯作者】 王俊升;

【机构】 北京理工大学材料学院北京理工大学前沿交叉科学研究院

【摘要】 镁合金因其密度低,轻量化效果明显,矿产资源丰富,在航空航天等领域得到了广泛的应用,成为“21世纪新型绿色材料”。但镁的电化学活性强,耐腐蚀性能差,一直限制着镁合金的大规模应用。目前,探索镁合金的腐蚀机理,设计新型耐蚀镁合金的成分已经引起人们的广泛关注。本文以耐腐蚀镁合金的成分设计方法研究进展为题进行了讨论,主要阐述了镁的腐蚀反应机理和异常析氢现象等镁合金腐蚀机制,以及电偶腐蚀、点蚀、丝状腐蚀、应力腐蚀等腐蚀类型,并总结了不同合金元素对镁合金耐腐蚀性能的影响。重点概述了第一性原理模型、分子动力学以及X射线计算机断层扫描技术(X-CT)在镁合金腐蚀方面的应用,期望能够为耐腐蚀镁合金的成分设计提供帮助。

【Abstract】 Mg alloys have been widely used in aerospace and other fields because of its low density, light-weighting effects and abundant mineral resources. It has become a “new green material of the 21st century”. However, Mg has strong electrochemical activity and is prone to corrosion, which has been limiting the wide application of magnesium alloys. At present, exploring the corrosion mechanism of Mg alloys and designing the composition of corrosion-resistant Mg alloys have attracted world-wide attention. This review discusses the research progress on the design of corrosion resistant of Mg alloys. It mainly describes the corrosion mechanism of Mg alloy and anomalous hydrogen reaction phenomenon, as well as the corrosion types such as galvanic corrosion, pitting corrosion, exfoliation corrosion and stress corrosion. And the effects of different alloying elements on the corrosion resistance of Mg alloy are summarized. Focuses on the application of firstprinciples, molecular dynamics, and X-CT technology in Mg alloy corrosion, which is expected to provide principles for the chemistry design of corrosion-resistant Mg alloys.

  • 【文献出处】 航空制造技术 ,Aeronautical Manufacturing Technology , 编辑部邮箱 ,2023年06期
  • 【分类号】TG146.22
  • 【下载频次】175
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