Influence of Heat Treatment on Microstructures and Impact Toughness of Mg-Al-Zn Alloy. - Mao, Longhui; Liu, Chuming; Wan, Yingchun; Wei, Jianshen; Gao, Yonghao; Jiang, Shunong; Chen, Zhiyong (JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2019)