高性能稀土镁合金的研究进展

中国材料进展, 2011, 30(2): 1-9.

高性能稀土镁合金的研究进展

吴玉娟 ^1, , 丁文江 ^2, , 彭立明 ^3, , 曾小勤 ^4, , 林栋樑 ^5,

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;上海交通大学,金属基复合材料国家重点试验室,上海,200240;上海交通大学机械与动力工程学院,上海,200240

2.上海交通大学,轻合金精密成型国家工程研究中心,上海,200240;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,轻合金精密成型国家工程研究中心,上海,200240;上海交通大学,金属基复合材料国家重点试验室,上海,200240

4.上海交通大学,轻合金精密成型国家工程研究中心,上海,200240;上海交通大学,金属基复合材料国家重点试验室,上海,200240

5.上海交通大学,轻合金精密成型国家工程研究中心,上海,200240;上海交通大学,金属基复合材料国家重点试验室,上海,200240

基金项目: 国家自然科学基金(50971089) 中国博士后科学基金项目(20090460615) 中国博士后科学基金特别资助项目(201003267) 国家863计划重点项目(2009AA033501)

关键词：镁合金 , 高性能稀土镁合金 , 长周期堆垛有序结构 , 镁合金研发

Research Progress of Advanced Magnesium Rare-Earth Alloys

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 Ordlered 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.

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