The results show that Widmansttten structure needle consists of many blocky subgrains that have higher dislocation density and subgrain boundary is made up of dislocation tangle.
结果表明，魏氏组织针由多个块状的亚晶粒组成，亚晶粒边界由位错缠结而成，在亚晶粒内有较高的位错密度；
It is shown from TEM analysis that the fine grained matrix materials are mainly derived from the huge clasts by subgrain rotation and local grain boundary migration.
TEM亚微分析表明，细粒基质是由粗大碎屑经过亚颗粒旋转，并伴随着局部颗粒边界迁移形成的动态重结晶颗粒。
It is shown from TEM analysis that the fine grained matrix materials are mainly derived from the huge clasts by subgrain rotation and local grain boundary migration.
TEM亚微分析表明，细粒基质是由粗大碎屑经过亚颗粒旋转，并伴随着局部颗粒边界迁移形成的动态重结晶颗粒。
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