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等通道转角挤压制备超细晶镁合金腐蚀行为研究进展
          
Progress in Research on Corrosion Behaviour of Ultra-fine Grained Mg Alloys Fabricated by ECAP

摘    要
镁合金较差的耐蚀性制约着其应用进程,等通道转角挤压(ECAP)可实现镁合金的组织超细化,有望在提高镁合金力学性能的同时改善其耐蚀性。综述了当前ECAP制备超细晶镁合金腐蚀行为的研究进展,通过对纯镁、Mg-Al合金、Mg-RE合金等典型镁材腐蚀行为与机理的分析,初步探索了借助ECAP同时实现镁合金强韧化和耐蚀化的可能途径。
标    签 等通道转角挤压   超细晶   镁合金   耐蚀性   腐蚀与防护   equal-channel angular pressing(ECAP)   ultra-fine grained   magnesium alloy   corrosion resistance   corrosion and protection  
 
Abstract
Magnesium alloys have relatively poor corrosion resistance, which is actually one of the main obstacles to their application in practical environments. Equal-channel angular pressing (ECAP) is one of the most effective techniques for fabricating ultrafine-grained (UFG) bulk magnesium alloys, which can significantly improve their corrosion resistance and superior mechanical properties. This paper reviews recent research progress on corrosion behaviour of UFG magnesium alloys fabricated by ECAP, and discusses the corrosion mechanism of typical magnesium alloys (pure Mg, Mg-Al, Mg-RE). Some possible methods to improve their strength and corrosion resistance are preliminary explored.

中图分类号 TG174

 
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所属栏目 专论

基金项目 国家自然科学基金(51141002); 江苏省自然科学基金(BK2011249); 南通市应用研究计划(BK2012042)

收稿日期 2013/7/23

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备注郭光辉(1988-),硕士研究生,从事高性能金属材料及其加工,

引用该论文: GUO Guang-hui,JIANG Jing-hua,MA Ai-bin,SONG Dan,HE Qing. Progress in Research on Corrosion Behaviour of Ultra-fine Grained Mg Alloys Fabricated by ECAP[J]. Corrosion & Protection, 2014, 35(5): 413


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