近来国内外的研究确定,钇对提高镁合金室温和高温机械性能有着良好的作用。在压力加工之后,不经淬火,直接进行长时间人工时效,这些合金可以达到最高的强度指标。关于在人工时效前对可时效的镁合金进行小量变形(5～10%)有提高强度的可能性,我们已经对含钕、铝、锌等合金进行了研究。这时产生了相当大的强化效果。 Recent studies at home and abroad have confirmed that yttrium has a good effect on improving the mechanical properties of magnesium alloy at room temperature and high temperature. After the pressure process, without quenching, direct artificial aging for a long time, these alloys can achieve the highest strength index. About the possibility of increasing the strength of aging-tolerant magnesium alloys (5 to 10%) prior to artificial aging, we have investigated alloys containing neodymium, aluminum and zinc. At this time there has been a considerable strengthening effect.