Onset of detwinning in Mg-3Al-1Zn alloy: A synchrotron-based X-ray diffraction study

作者：Zhang, N. B.; Zhang, Y. Y.; Chen, S.; Zhang, B. B.; Li, Z. L.; Xie, H. L.; Lu, L.^*; Yao, X. H.^*; Luo, S. N.

来源：Scripta Materialia, 2021, 190: 113-117.

DOI：10.1016/j.scriptamat.2020.08.044

• Magnesium alloy
• Synchrotron X-ray diffraction
• Twinning
• Detwinning

We investigate the onset of detwinning in magnesium alloy Mg-3Al-1Zn under continuous loading with real-time in situ synchrotron X-ray diffraction. Detwinning of the {10 (1) over bar2} extension twins activated both by tension parallel to and compression perpendicular to the c-axis fibers is explored. The experimental results reveal that detwinning of the {10 (1) over bar2} extension twins occurs immediately upon unloading, regardless of whether the twins are activated by tension parallel to or compression perpendicular to the c-axis fibers. @@@ We investigate the onset of detwinning in magnesium alloy Mg-3Al-1Zn under continuous loading with real-time in situ synchrotron X-ray diffraction. Detwinning of the {10 (1) over bar2} extension twins activated both by tension parallel to and compression perpendicular to the c-axis fibers is explored. The experimental results reveal that detwinning of the {10 (1) over bar2} extension twins occurs immediately upon unloading, regardless of whether the twins are activated by tension parallel to or compression perpendicular to the c-axis fibers.

• 单位
  西南交通大学; 中国科学院