Microstructure evolution of pure magnesium based on dynamic recrystallization during ambient equal channel angular pressing

被引：0
|
作者：
Lei, Weiwei [1 ]
Yin, Tao [1 ]
Feng, Guosheng [2 ]
机构：
[1] Shanxi Med Univ, Coll Med Imaging, Taiyuan 030001, Peoples R China
[2] Shanxi Med Univ, Dept Radiol, Hosp 1, Taiyuan 030001, Peoples R China
来源：
MATERIALS LETTERS | 2025年 / 378卷
基金：
中国国家自然科学基金; 山西省青年科学基金;
关键词：
Dynamic recrystallization; Grain orientation; Pure mg; ECAP; GRAIN-REFINEMENT; DEFORMATION; BEHAVIOR; ALLOY;
D O I：
10.1016/j.matlet.2024.137600
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An as-extruded pure Mg bar was subjected to ambient equal channel angular pressing (ECAP) up to four passes. Recrystallization behavior of as-ECAPed samples was investigated by scanning electron microscope-electron back scatter diffraction (SEM-EBSD). After four-pass ECAP, grain orientation was significantly changed and basal-oriented texture was formed with c-axes of most grains nearly parallel to transverse direction (TD). Dynamic recrystallization (DRX) shows obvious orientation dependence during ambient ECAP, with continuous dynamic recrystallization (CDRX) partly transforming into discontinuous dynamic recrystallization (DDRX) after the four-pass ECAP.
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页数：4
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