[HTML][HTML] Review of non-classical features of deformation twinning in hcp metals and their description by disconnection mechanisms

A Ostapovets, A Serra - Metals, 2020 - mdpi.com
The study of deformation twinning has long history. However new, sometimes surprising,
findings have shown that the phenomenon of deformation twinning still is not completely …

Atomic-scale insights into grain boundary-mediated plasticity mechanisms in a magnesium alloy subjected to cyclic deformation

H Su, S Zheng, Z Yang, J Wang, H Ye - Acta Materialia, 2024 - Elsevier
Sustaining grain boundary (GB) plasticity is important to prevent the premature GB cracking
during plastic deformation of hexagonal-close-packed (HCP) materials. Here, we …

Multiscale modeling of crystal defects in structural materials

J Wang, H Xu, H Gao, DL McDowell - MRS Bulletin, 2024 - Springer
Defects in crystals influence and control many relevant material properties. It is essential to
employ multiscale modeling to understand structure and evolution of crystal defects. Most …

Influence of lowering basal stacking fault energy on twinning behaviours

B Wei, W Wu, M Gong, S Yu, S Ni, M Song, J Wang - Acta Materialia, 2023 - Elsevier
Deformation twinning plays a crucial role in the strong anisotropic strength, poor
deformability, and texture and microstructure evolutions of hexagonal metals. Modifying …

The role of embedded coordinates for disclinations and disconnection components

JP Hirth, J Wang - Acta Materialia, 2024 - Elsevier
The standard model is applied for partial disclination pairs in hard materials. These defects
comprise two partial disclinations and an intervening fault that can be a twin boundary, grain …

[HTML][HTML] Formation and solute segregation for an asymmetric tilt boundary on {101¯ 2} twin boundaries

Q Yang, S Lv, P Chen, Z **e, S Zhou, X Qiu - Journal of Magnesium and …, 2024 - Elsevier
Asymmetric tilt boundaries on conventional twin boundaries (TBs) are significant for
understanding the role of twins on coordinating plastic deformation in many metallic alloys …

{101¯ 2} Twin interface structure and energetics in HCP materials

G Gengor, ASK Mohammed, H Sehitoglu - Acta Materialia, 2021 - Elsevier
This study systematically analyzes the {10 1¯ 2} twin in Hexagonally Close Packed (HCP)
materials. Despite several propositions over 50 years, the Twin Boundary (TB) structure and …

Macroscopic low-friction via twinning assisted lattice reconstruction in magnesium

Y Li, Q Zhang, F Liang, Y Zhang, W Liu, Y Zhao, Y Zhu… - Acta Materialia, 2024 - Elsevier
One-fourth of the global energy losses are spent to overcome friction, making it particularly
important to reduce and minimize friction between contacting materials. Hexagonal close …

[HTML][HTML] Evolution of deformation twinning mechanisms in magnesium from low to high strain rates

NM della Ventura, A Sharma, S Kalácska, M Jain… - Materials & Design, 2022 - Elsevier
We present a systematic investigation of {10 1¯ 2} extension twinning mechanism in single
crystal magnesium micropillars deformed over seven orders of magnitude of strain rate, from …

Twin boundary migration mechanisms in quasi-statically compressed and plate-impacted Mg single crystals

KY **e, K Hazeli, N Dixit, L Ma, KT Ramesh… - Science …, 2021 - science.org
Twinning is a prominent deformation mode that accommodates plasticity in many materials.
This study elucidates the role of deformation rate on the atomic-scale mechanisms that …