Effect of Li content on microstructure, texture and mechanical properties of cold rolled Mg-3Al-1Zn alloy
Effect of Li content on microstructure, texture and mechanical properties of cold rolled Mg-3Al-1Zn alloy
复制标题
Li含量对冷轧Mg-3Al-1Zn合金显微组织、织构和力学性能的影响
DOI：
10.1016/j.msea.2015.02.023
复制
发表时间：
2015
期刊：
影响因子：
6.4
通讯作者：
Pan Fusheng
中科院分区：
文献类型：
--
作者：
Zeng Ying;Jiang Bin;Li Ruihong;He Junjie;Xia Xiangsheng;Pan Fusheng
Cold rolling of the as-extruded Mg–3Al–1Zn (AZ31) sheets containing different Li contents (Li=1, 3, 5; wt%) was performed at room temperature with a rolling reduction of 5%, and the microstructure, texture and tensile properties of the cold rolled and annealed sheets were investigated. The results indicated that the AZ31 sheet with a high Li content exhibited a high degree of dynamic recrystallization (DRX). Besides, the strain hardening rate of the annealed AZ31 sheets with a high Li content was more likely to be volatile, which can be attributed to Li atoms interacting with dislocations and influencing the movement of dislocations during the process of deformation. Furthermore, the Li addition to AZ31 alloy decreased the axial ratio (c/a) and led to a weak basal texture tilted towards the transverse direction (TD), and therefore improved the ductility and formability of the cold rolled and annealed AZ31 sheets. AZ31–3Li (LAZ331) sheet possessed excellent comprehensive mechanical properties and presented to be the best option in industrial processes considering the costing saving and property improvement.
