Cyclic deformation behavior of as-extruded Mg–3%Al–1%Zn
Cyclic deformation behavior of as-extruded Mg–3%Al–1%Zn
复制标题
DOI：
10.1016/j.scriptamat.2007.12.020
复制
发表时间：
2008-05
影响因子：
6
通讯作者：
S. Yin;H. J. Yang;Shunguang Li;Suxiang Wu;Fan Yang
中科院分区：
文献类型：
--
作者：
S. Yin;H. J. Yang;Shunguang Li;Suxiang Wu;Fan Yang
研究了挤压态Mg-3%Al-1%Zn镁合金（AZ 31）在室温下塑性应变幅和应力幅控制下的循环变形行为。在恒塑性应变幅值控制循环下，观察到压缩和拉伸之间的应力幅值的显著循环硬化不对称性。这种现象的可能原因进行了讨论的磁滞回线分析和在一个加载周期，使用电子背散射衍射的孪生和非孪生原位观察相结合。
The cyclic deformation behavior of extruded magnesium alloy Mg–3%Al–1%Zn (AZ31) was studied under plastic strain amplitude and stress amplitude-control at room temperature. A significant cyclic hardening asymmetry of stress amplitudes between compression and tension was observed under constant plastic strain amplitude-controlled cycling. The possible reasons for this phenomenon are discussed by a combination of hysteresis loop analysis and in situ observation of twinning and untwinning during one loading cycle using electron backscatter diffraction.