高性能稀土镁合金的研究进展-中国材料进展

文章信息/Info

作者:: 吴玉娟; 丁文江; 彭立明; 曾小勤; 林栋樑; (1.上海交通大学轻合金精密成型国家工程研究中心，上海 200240)
(2.上海交通大学金属基复合材料国家重点试验室，上海 200240)
(3.上海交通大学机械与动力工程学院，上海 200240)

Author(s):: WU Yujuan; DING Wenjiang; PENG Liming; ZENG Xiaoqin; LIN Dongliang; (1. National Engineering Research Center of Light Alloy Net Forming, Shanghai Jiao Tong University, Shanghai 200240, China )
(2. The State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai 200240, China)
(3. School of Mechanical Engineering，Shanghai Jiao Tong University, Shanghai 200240, China）

摘要:: 随着近年来汽车等工业节能减排对更高性能轻质镁合金的迫切需求，镁合金在工业应用中展现出了很大的发展前途。稀土镁合金系由于具有高温强度高、优良抗蠕变性能及耐热性能以及良好的塑性和耐腐蚀性等高性能，已经成为越来越受到重视的镁合金系之一，并在航空航天、电子、汽车、通讯等领域得到了广泛应用。目前，国内外已开发了MgGd、MgY、MgGdY、MgYGd等一系列稀土镁合金。综述了高性能稀土镁合金的研究进展和应用现状，主要介绍了MgY和MgGd二元和多元合金系的研究开发及应用的新进展，以及含长周期堆垛有序结构（Long Period Stacking Ordered Structure，简称LPSO结构）的MgYZn、MgGdZn、MgGdYZn、MgYGdZn合金系的研究现状。最后，展望了高性能稀土镁合金的发展趋势。

Abstract:: Along with the urgent need of higher performance light quality magnesium alloys for energysaving and carbon emission reduction in automobile and other industries of late years, magnesium alloys exhibit much development prospect in industry application. Rare earth magnesium alloy series have been attached more and more importance owing to their highperformances, including high strength at high temperature, excellent creep resistance & heat resistance, and good plasticity and corrosion resistance, etc. They have been widely used in fields such as aerospace, electronics, automobile, communication, and so on. At present, a series of rare earth magnesium alloys, including Mg Gd, Mg Y, Mg Gd Y, Mg Y Gd, and etc., have been developed worldwide. Current research development and application status of advanced Mg alloys were reviewed, mainly on new development of binary and complex MgY and MgGd alloys, as well as on status of Mg Y Zn, Mg Gd Zn, Mg Gd Y Zn and Mg Y Gd Zn alloy series with long period stacking ordered structures. At last, the development trend of advanced Mg alloy was proposed.