Static recrystallization behavior of cold-rolled AZ31 Mg alloy with high density of shear bands and{101^(-)1}twins

作     者：CHENG Zong-yuan PENG Jin-hua FANG Tao ZANG Qian-hao CHEN Liang-yu LU Sheng 程宗元;彭金华;方涛;臧千昊;陈靓瑜;芦笙

作者机构：School of Materials Science and EngineeringJiangsu University of Science and TechnologyZhenjiang 212003China Foshan(Southern China)Institute for New MaterialsFoshan 528000China 

出 版 物：《Journal of Central South University》 (中南大学学报(英文版))

年 卷 期：2025年第32卷第3期

页      面：727-743页

核心收录：

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：Project(52405369) supported by National Natural Science Foundation of China Project(BK20210891) supported by the Natural Science Foundation of Jiangsu Province,China Project(BX2022030) supported by the Special Project of Introducing Foreign Talents of Jiangsu Province,China 

主　　题：cold-rolling isothermal annealing twinning texture yield strength 

摘      要：Cold-rolling was conducted on AZ31 magnesium alloy with fine and coarse grains to produce plates with high density of shear bands and{101^(-)1}twins,***,these two kinds of plates are subjected to isothermal annealing to reveal the effect of shear bands and{101^(-)1}twins on recrystallization *** annealing,static recrystallization occurs firstly in shear band zones and{101^(-)1}twin zones,which has different effect on texture and mechanical *** the increase of annealing temperature,strong basal texture remains in annealed SG-17%while the basal texture is weakened gradually in annealed LG-15%.Recrystallized grains from twin zones have a random orientation which is responsible for the weakened basal texture in annealed LG-15%.In addition,microhardness decreases gradually with the prolonged annealing time due to static ***-15%has a lower recrystallization activation energy because{101^(-)1}twins are in favor of the nucleation and growth of recrystallized *** 500℃annealing,the yield strength decreases significantly with a significant improvement in failure *** annealed LG-15%has a much higher compressive strain than the annealed SG-17%due to texture weakening effect.