In response to temperature or pressure changes, many body-centered cubic (bcc) materials undergo martensitic bcc-hcp phase transformation, which is known to produce rich …
This study utilized the molecular dynamics method to investigate the slip transfer behaviors of edge and screw dislocations in magnesium at basal/prismatic grain boundaries (BPGBs) …
Abstract {10 1 ̄ 2} twinning occurs extensively in Mg to accommodate plastic deformation. With multiple active twin variants, twin–twin interaction occurs and this often forms twin–twin …
By integrating atomistic simulations with theoretical calculations, we investigate the prevalence of {112} deformation twins in bcc materials and their sensitivity to the loading …
In this paper, we perform concurrent atomistic–continuum (CAC) simulations to assess the contribution of the internal stress induced by the microscale dislocation pileup at an …
AH Zahiri, J Ombogo, L Cao - Scripta Materialia, 2021 - Elsevier
We report the discovery of a non-conventional {11 2¯ 2} twinning mechanism in α-titanium through reversible α→ ω→ α martensitic phase transformations. Specifically, the parent α …
AH Zahiri, J Ombogo, T Ma, P Chakraborty… - Journal of Applied …, 2021 - pubs.aip.org
ω-titanium (Ti) is a high-pressure phase that is conventionally perceived to be brittle and nondeformable, although direct investigations of its deformation process remain scarce. In …
AH Zahiri, J Ombogo, M Lotfpour, L Cao - 2023 - leicao-research.github.io
Twinning is a major mechanism of plastic deformation in hexagonal close-packed (hcp) structures. However, a mechanistic understanding of twin nucleation and growth has yet to …