采用背散射电子衍射技术(EBSP)分析AZ91镁合金在热压缩变形过程中的流变行为及组织演变特征.研究表明,该合金在热压缩实验中通过动态再结晶过程细化基体晶粒.随应变速率降低,稳态组织的平均晶粒尺寸增大,大尺寸晶粒比例和大边数晶粒比例增加.流变曲线的峰值应力随Zener-Hollomon参数的增大而增大.
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