新型高强度低合金化镁合金研究进展-中国材料进展

文章信息/Info

Title:: Research Progress of Newly Developed HighStrength and LowAlloyed Magnesium Alloy

作者:: 程仁山; 潘虎成; 谢东升; 李景仁; 谢红波; 秦高梧; (东北大学材料学院材料各向异性与织构教育部重点实验室，辽宁省，沈阳 110819)

Author(s):: CHENG Renshan; PAN Hucheng; XIE Dongsheng; LI Jingren; XIE Hongbo; QIN Gaowu; (Key Laboratory for Anisotropy and Texture of Materials Ministry of Education, School of Materials Science and Engineering, Northeastern University, Shenyang 110819, China)

Keywords:: Magnesium alloy; Grain refinement; Strengthening mechanism; Alloying; Segregations

摘要:: 近年来，随着能源问题和环境问题的日益严峻，作为轻量化合金代表之一的镁合金得到了人们普遍的关注。特别是低合金化镁合金，因其具有优异的可加工性能、好的耐蚀性、低成本（密度）以及可提高镁合金塑性等优势而引起了国内外学者的广泛关注。然而，低合金含量镁合金获得的绝对强度难以满足实际的工况需求，使其应用面临着严峻的挑战，高强度低合金化镁合金可进一步拓展镁合金的应用范围。综述了近年来高强度低合金化镁合金的研究进展，系统分析了不同体系高强度低合金化镁合金的高强高韧化机理，并展望了未来高性能低合金化镁合金研究的发展方向。

Abstract:: In recent years, with the energy and environmental problems being gradually serious, the research on Mg alloy, which is one of the representatives of lightweight alloys, has received greatest attention. In particular, low-alloyed Mg alloy has attracted wide attention from scholars at home and abroad due to their excellent processing properties, high corrosion resistance, low cost (density) and improved ductility. However, it is always a great challenge to achieve high absolute-strength for this low-alloyed Mg alloy to satisfy the requirement for the practical applications, high-strength and low-alloyed magnesium alloy can further broaden the application scope of Mg alloy. In this regard, the research progress of high-strength and low-alloyed Mg alloy in recent years is reviewed in this paper. The strengthening and toughening mechanism of high-strength and low-alloyed Mg alloys in different alloying systems are comprehensively analyzed, and the development direction of high-performance and low-alloyed Mg alloy is prospected.