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系统论述了不同稀土元素的结构特性,基于镁合金的强化机制,并结合当前稀土镁合金的研究现状,展示了稀土元素的添加对镁合金在强度、塑性及抗蠕变性能等方面带来的变化,尤其是对镁合金塑性的影响。其中,区别于传统的强化机制,对添加稀土元素后出现的LPSO结构相对镁合金性能的影响也进行了重点讨论,进一步对镁合金中的稀土元素合金化后的改性作用及前景进行了探讨和展望。
The structural characteristics of different rare earth elements are systematically discussed. Based on the strengthening mechanism of magnesium alloys and the current research status of rare earth magnesium alloys, the effects of rare earth elements on the strength, plasticity and creep resistance of magnesium alloys Changes, especially on the plasticity of magnesium alloys. Among them, different from the traditional strengthening mechanism, the effects of rare earth elements on the properties of LPSO structure relative to magnesium alloys are also discussed. The modification and prospects of alloying of rare earth elements in magnesium alloys are also discussed And outlook.