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通过对稀土元素添加前后镁合金超塑性能的对比，研究了稀土元素对镁合金超塑性的影响，分析了稀土元素影响镁合金超塑性的原因。
By comparing the superplasticity of magnesium alloys before and after the addition of rare earth elements, the effects of rare earth elements on the superplasticity of magnesium alloys were studied. The reasons that rare earth elements affect the superplasticity of magnesium alloys were analyzed.