Atomic scale investigation of the phase transformation path from HCP to FCC in high-purity hafnium during torsion deformation

J Hu, F Han, M Ali, J Ren, Q Wang, Z Zhang, W Guo… - Scripta Materialia, 2024 - Elsevier
Although the hexagonal close-packed (HCP) to face centered cubic (FCC) martensitic phase
transformation has been frequently observed and discussed in many HCP metals and …

Deformation mechanisms in FCC Co dominated by high-density stacking faults

R Su, D Neffati, S Xue, Q Li, Z Fan, Y Liu… - Materials Science and …, 2018 - Elsevier
It has been known that twin boundaries dominate the plasticity of nanotwinned metals.
However, the role of stacking faults on the deformation mechanisms in face-centered-cubic …

Atomistic simulation of deformation twinning in nanocrystalline body-centered cubic U–Mo alloys

X Ou, Y Yang, Y Shen, P Wang, Z You, X Tian - CrystEngComm, 2024 - pubs.rsc.org
Deformation mechanisms of the nanocrystalline body-centered cubic U–Mo alloy were
investigated through molecular dynamics simulations, focusing on the influences of the grain …

Deformation twins in nanocrystalline body-centered cubic Mo as predicted by molecular dynamics simulations

Y Zhang, PC Millett, M Tonks, SB Biner - Acta materialia, 2012 - Elsevier
This work studies deformation twins in nanocrystalline body-centered cubic Mo, including
the nucleation and growth mechanisms as well as their effects on ductility, through …

Three dimensional crystallographic orientation relationships for hexagonal close packed structure to face centered cubic structure transformation in pure titanium

B Wei, S Ni, Y Liu, M Song - Scripta Materialia, 2019 - Elsevier
In this work, two types of stress induced hexagonal close packed structure to face centered
cubic structure transformation were observed in cold-rolled pure titanium. The …

Atomic-scale observation of strain-induced local amorphization in face-centered cubic metals

Z Wang, N Chen, X Li, J Teng, Y Guo, L Fu, Z Zhang… - Scripta Materialia, 2022 - Elsevier
The formation of metallic glass through melt processing proves to be the most challenging
for pure monatomic face-centered cubic (FCC) metals. Though it has long been conjectured …

Dislocation depinning from ordered nanophases in a model fcc crystal: From cutting mechanism to Orowan looping

L Proville, B Bakó - Acta materialia, 2010 - Elsevier
Based on the embedded atom method we have studied dislocation bypassing of
nanophases in a model for face-centered cubic (fcc) alloys. A system in which either a purely …

Plastic deformation induced hexagonal-close-packed nickel nano-grains

ZP Luo, XK Guo, JX Hou, X Zhou, XY Li, K Lu - Scripta Materialia, 2019 - Elsevier
Nickel has a stable face-centered-cube lattice structure with a high stacking fault energy. No
phase transition has been identified in Ni at elevated temperatures and under high pressure …

Nanoscale ductile fracture and associated atomistic mechanisms in a body-centered cubic refractory metal

Y Lu, Y Chen, Y Zeng, Y Zhang, D Kong, X Li… - Nature …, 2023 - nature.com
Understanding the competing modes of brittle versus ductile fracture is critical for preventing
the failure of body-centered cubic (BCC) refractory metals. Despite decades of intensive …

Mechanically enhanced grain boundary structural phase transformation in Cu

M Aramfard, C Deng - Acta Materialia, 2018 - Elsevier
It has been previously proposed that grain boundary can be treated as a two-dimensional
phase in materials with possible transformations between its multiple metastable states …