以X射线衍射分析术为主要分析手段,探讨了双相合金Mg-8Li-1Al(质量分数,%)在等通道转角挤压(ECAP)变形过程中的变形方式.α相在第1道次ECAP过程中主要的变形方式是{1011}<1012>孪生,在随后道次的ECAP过程中主要变形方式为位错滑移,变形方式的转变主要是由于ECAP造成的组织细化效应;对于β相,各道次ECAP的主要变形方式均为位错滑移.
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