Journal
SCIENTIFIC REPORTS
Volume 9, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-018-37067-8
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Funding
- National Natural Science Foundation of China [51301215]
- Talent project of Chongqing University of Arts and Sciences [R2014CJ04, 2017RXC24]
- Scientific Technological Research Program of Chongqing Municipal Education Commission [KJ1601117]
- Chongqing Research Program of Basic Research and Frontier Technology [cstc2017jcyjBX0051]
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The atomic structure of {10 (1) over bar 2} twin boundary (TB) from a deformed Mg-3Al-1Zn (AZ31) magnesium alloy was examined by using high-resolution transmission electron microscopy (HRTEM). By comparing the lattice structure of TB with the previously established model, a kind of special atomic combinations, here named primitive cells (PCs), were discovered at the TB. The PCs reorientation induced mechanism of twinning in hexagonal-close-packed (HCP) crystals was hence verificated. Meanwhile, the relationship between the misorientation of adjacent layers of PCs and the width of TB was discussed. The verification of the mechanism clarifies the twinning mechanism in HCP crystals and opens up opportunities for further researches.
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