In-situ TEM observations on interaction of basal <a> dislocations and β′ phases in a Mg–Gd binary alloy
Mengning Xu, Na Li, Xuechao Sha, Yi Liu, Bo Gao, Lirong Xiao, Xuefei Chen, Hao Zhou
Nanjing University of Science and Technology Beijing University of Technology Jiangsu University Harbin University of Science and Technology
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Here we report in-situ TEM observations on interaction between dislocations and β′ phases in aged Mg–Gd alloys. The slipping <a> dislocations squash into the interface and bow out to bypass the β′ phase, leading to a zigzag route of plastic flow. Orowan mechanism is determined as the main strengthen mechanism.
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材料 / 化学Magnesium Alloys: Properties and Applications
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