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Superplastic Deformation Behavior of Rolled Mg-8Al-2Sn and Mg-8Al-1Sn-1Zn Alloys at High Temperatures by Zhang, Shao-You; Wang, Cheng; Zhao, Long-Qing; Ma, Pin-Kui; Song, Jia-Wang; Xu, Jin; Cheng, Xiu-Ming; Wang, Hui-Yuan is a Engineering article available to read on EtoBox.
What is Superplastic Deformation Behavior of Rolled Mg-8Al-2Sn and Mg-8Al-1Sn-1Zn Alloys at High Temperatures about?
The high-temperature superplastic deformation behavior of rolled Mg-8Al-2Sn (AT82) and Mg-8Al-1Sn-1Zn (ATZ811) alloys were investigated in this study. During tensile deformation at 573 K, no obvious grain growth occurred in both alloys, because of the high-volume fraction of second phases located at grain boundaries. Meanwhile, texture weakening was observed, suggesting that grain boundary sliding (GBS) is the dominant superplastic deformation mechanism, which agreed well with the strain rate sensitivity (__m__) and the activation energy (__Q__) calculations. The microstructural evolution during tensile deformation manifested that there were more and larger cavities in AT82 than ATZ811 during high-temperature tensile deformation. Therefore, superior superplasticity was found in the ATZ811 alloy that presented a tensile elongation of ~510% under a strain rate of 10^−3^ s^−1^ at 573 K, in contrast to the relatively inferior elongation of ~380% for the AT82 alloy. Meanwhile, good tensile properties at ambient temperature were also obtained in ATZ811 alloy, showing the ultimate tensile strength (UTS) of ~355 MPa, yield strength (YS) of ~250 MPa and elongation of ~18%. Excellent mechani
Who reads Superplastic Deformation Behavior of Rolled Mg-8Al-2Sn and Mg-8Al-1Sn-1Zn Alloys at High Temperatures?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Zhang, Shao-You; Wang, Cheng; Zhao, Long-Qing; Ma, Pin-Kui; Song, Jia-Wang; Xu, Jin; Cheng, Xiu-Ming; Wang, Hui-Yuan
- Publisher
- MDPI AG; MDPI Open Access Publishing; Basel: MDPI, 2008-; Publons (ISSN 1996-1944)
- Published
- 2020
- Language
- EN
- Field
- Engineering (Physical Sciences)