摘要
轻质高强的镁合金材料若要在航空航天领域大规模应用,高温性能是必须要考虑的主要参数之一。本文综述了不同成分(不含稀土镁合金和稀土镁合金)、不同状态(铸态、变形态和热处理态)镁合金的高温拉伸和蠕变性能的研究进展,重点介绍了稀土镁合金的强度反常温度效应及机理。最后指出了未来镁合金高温性能的研究方向。
High temperature properties are one of the major parameters that must be taken into consideration if magnesium alloy is widely applied in the aerospace field. A review of the recent achievement in researching high temperature tensile and high temperature creep of magnesium alloy under different conditions was given. The high temperature fracture mechanism of magnesium alloys was introduced, and emphases on the phenomenon and the mecha- nism that the strength of Mg - RE alloys are abnormally increased with the temperature. Future research direction of high temperature mechanical proper- ties of magnesium alloy was pointed out.
出处
《轻金属》
CSCD
北大核心
2013年第6期48-53,共6页
Light Metals
基金
国家自然科学基金(51275295)
国家高技术研究计划资助项目(2009AA033501)
关键词
镁合金
高温蠕变
高温力学性能
magnesium alloy
high temperature creep
high temperature mechanical properties
