Abstract
The microstructure of solid solution treated Mg–Gd–Zn alloy has been investigated. After solid solution at 773 K for 16 h, a large amount of long period stacking ordered (LPSO) phases precipitate. The study on the evolution of microstructure indicated that this alloy has great solid solution strengthening effect. Besides the LPSO phases, stacking faults and {10–12} annealing twins were observed in the specimen aged at 623 K for 0.5 h. Generally, the stacking faults generate from the matrix and parallel to the (0002)α plane of the α–Mg matrix. However, studies of the stacking faults in the {10–12} annealing twin showed that the stacking faults were vertical to the (0002)α plane of the magnesium matrix. In addition, the interface between the twin and the α–Mg matrix has been studied.
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Acknowledgements
The project was sponsored by the Natural Science Foundation of Shandong Province (No: ZR2016EMB11, ZR2017PEE007 and ZR2018BEE013) and National Natural Science Foundation of China (No. 51371130).
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Liu, Y., Zhao, D., Liu, H., Lin, T., Liu, Y., Zhou, J. (2019). Investigation on the Microstructure of Mg–Gd–Zn Alloy. In: Han, Y. (eds) Physics and Engineering of Metallic Materials. CMC 2018. Springer Proceedings in Physics, vol 217. Springer, Singapore. https://doi.org/10.1007/978-981-13-5944-6_60
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DOI: https://doi.org/10.1007/978-981-13-5944-6_60
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