Unveiling the Twinning Mechanisms in Al2MgCu: Insights from Electron Backscatter Diffraction Analysis in High Alloyed Al-Zn-Mg-Cu Alloys: Unveiling the Twinning Mechanisms in Al2MgCu: Insights from Electron Backscatter Diffraction Analysis in High Alloyed Al-Zn-Mg-Cu Alloys: Dai, Liao, Khan, and Li
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| Title: | Unveiling the Twinning Mechanisms in Al |
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| Authors: | Dai, Shang1 (AUTHOR), Liao, Luhai2 (AUTHOR), Khan, Muhammad Abubaker1 (AUTHOR), Li, Jingyuan1 (AUTHOR) lijy@ustb.edu.cn |
| Source: | JOM: The Journal of The Minerals, Metals & Materials Society (TMS). May2025, Vol. 77 Issue 5, p3864-3870. 7p. |
| Subjects: | Electron diffraction, Space groups, Backscattering, Hot rolling, Alloys |
| Abstract: | This study explores the twining phenomenon in the Al2MgCu intermetallic compound, a common second phase in a hot-rolling high-alloyed Al-Zn-Mg-Cu alloy, using advanced electron backscatter diffraction (EBSD). Theoretically, the full twining elements of types I {110} < –1, 1, 2.9197 > twining system in Al2MgCu with an orthorhombic structure (space group cmcm) are first determined. There are two possible {1 1 0} twin variants, which are (1 1 0) [–1, 1, 2.9197] and (–1 1 0) [–1, –1, 2.9197], or crystallographically equivalent (–1 –1 0) [1, –1, –2.9197] and (1 –1 0) [1, 1, –2.9197]. The misorientation between a {1 1 0} twin and matrix Al2MgCu grains has been calculated to be [0 0 1] 44.3°, which can be used to identify {1 1 0} twins in Al2MgCu by EBSD. [ABSTRACT FROM AUTHOR] |
| Copyright of JOM: The Journal of The Minerals, Metals & Materials Society (TMS) is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Abstract: | This study explores the twining phenomenon in the Al2MgCu intermetallic compound, a common second phase in a hot-rolling high-alloyed Al-Zn-Mg-Cu alloy, using advanced electron backscatter diffraction (EBSD). Theoretically, the full twining elements of types I {110} < –1, 1, 2.9197 > twining system in Al2MgCu with an orthorhombic structure (space group cmcm) are first determined. There are two possible {1 1 0} twin variants, which are (1 1 0) [–1, 1, 2.9197] and (–1 1 0) [–1, –1, 2.9197], or crystallographically equivalent (–1 –1 0) [1, –1, –2.9197] and (1 –1 0) [1, 1, –2.9197]. The misorientation between a {1 1 0} twin and matrix Al2MgCu grains has been calculated to be [0 0 1] 44.3°, which can be used to identify {1 1 0} twins in Al2MgCu by EBSD. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 10474838 |
| DOI: | 10.1007/s11837-025-07252-y |
