Exceptional mechanical properties of AZ31 alloy wire by combination of cold drawing and EPT
来源期刊：JOURNAL OF MATERIALS SCIENCE TECHNOLOG2020年第16期
论文作者：Zhaohui Shan Jing Bai Jianfeng Fan Hongfei Wu Hua Zhang Qiang Zhang Yucheng Wu Weiguo Li Hongbiao Dong Bingshe Xu
文章页码：111 - 118
摘 要：A 0.66 mm-diameter AZ31 alloy wire with ultimate tensile strength of 400 MPa and elongation of 28.5%was successfully prepared via the combination of cold-drawing and electropulsing treatment processing（EPT）.Microstructure observation showed that the grain size of EPTed samples was refined to about 1 μm and the basal texture strength with maxima texture index was weakened to 7.18.EPT can significantly accelerate recrystallization by enhancing the mobility of dislocation and atomic diffusion due to the coupling of the thermal and athermal effects.Finally,uniform ultrafine-grained structure was obtained in the EPTed samples by static recrystallization completed in a very short time（30 s） at relatively low temperature（433 K）.
Zhaohui Shan1，Jing Bai2，Jianfeng Fan1,3，Hongfei Wu1，Hua Zhang1,3，Qiang Zhang1,3，Yucheng Wu1，Weiguo Li1，Hongbiao Dong4，Bingshe Xu1
1. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan University of Technology2. School of Materials Science and Engineering, Southeast University3. Shanxi Key Laboratory of Advanced Magnesium-based Materials4. Department of Engineering, University of Leicester
摘 要：A 0.66 mm-diameter AZ31 alloy wire with ultimate tensile strength of 400 MPa and elongation of 28.5%was successfully prepared via the combination of cold-drawing and electropulsing treatment processing（EPT）.Microstructure observation showed that the grain size of EPTed samples was refined to about 1 μm and the basal texture strength with maxima texture index was weakened to 7.18.EPT can significantly accelerate recrystallization by enhancing the mobility of dislocation and atomic diffusion due to the coupling of the thermal and athermal effects.Finally,uniform ultrafine-grained structure was obtained in the EPTed samples by static recrystallization completed in a very short time（30 s） at relatively low temperature（433 K）.
关键词：
