Abstract
Solute segregation to grain boundaries is an essential phenomenon that affects multiple mechanical properties of magnesium alloys. In this work, the deformed microstructure in a Mg–Zn–Ca alloy that was compressed at room temperature has been examined by bright-field and high-angle annular dark-field scanning transmission electron microscopy. Domains made of nanograins have been observed in some local areas. These domains exhibit strong texture and most of the nanograins oriented with their being paralleled to each other, which is similar to those reported in the Mg–Gd alloy. The grain boundaries of these nanograins involve many isometric tilt boundaries containing twin boundaries. Segregation of Zn/Ca atoms occurs in these tilt boundaries in the cold deformed sample. The segregation forms unique and chemically ordered patterns specific to tilt boundaries.
Original language | English |
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Title of host publication | Magnesium Technology, 2019 |
Editors | Neale R. Neelameggham, J. Brian Jordon, Dmytro Orlov, Vineet V. Joshi |
Publisher | Springer |
Pages | 263-266 |
Number of pages | 4 |
ISBN (Print) | 9783030057886 |
DOIs | |
Publication status | Published - 1 Jan 2019 |
Event | Magnesium Technology Symposium 2019 - San Antonio, United States of America Duration: 10 Mar 2019 → 14 Mar 2019 https://link.springer.com/book/10.1007%2F978-3-030-05789-3 (Proceedings) |
Publication series
Name | Minerals, Metals and Materials Series |
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ISSN (Print) | 2367-1181 |
ISSN (Electronic) | 2367-1696 |
Conference
Conference | Magnesium Technology Symposium 2019 |
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Country/Territory | United States of America |
City | San Antonio |
Period | 10/03/19 → 14/03/19 |
Internet address |
Keywords
- HAADF-STEM
- Mg alloys
- Solute segregation
- Tilt boundary
Equipment
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Centre for Electron Microscopy (MCEM)
Flame Sorrell (Manager) & Peter Miller (Manager)
Office of the Vice-Provost (Research and Research Infrastructure)Facility/equipment: Facility