The mechanism of plasticity and phase transition in iron single crystals under cylindrically divergent shock loading

J Tan, Z Jian, S Xiao, X Li, K Wang, L Wang… - International Journal of …, 2022 - Elsevier
Cylindrically divergent shock loading significantly influences the plasticity and phase
transition of iron. In this study, the mechanisms of plasticity and α→ ε phase transition are …

The atomistic mechanism of hcp-to-bcc martensitic transformation in the Ti–Nb system revealed by molecular dynamics simulations

Y Li, JH Li, BX Liu - Physical Chemistry Chemical Physics, 2015 - pubs.rsc.org
Applying the constructed Ti–Nb potentials, molecular dynamics simulations were conducted
to investigate the martensitic transformation of Ti100− xNbx alloys (x= 5, 10… 25) from the …

The role of deviatoric stress and dislocations on the α to ω phase transformation in Ti

K Dang, CN Tomé, L Capolungo - Acta Materialia, 2023 - Elsevier
Under extreme conditions, α-Ti becomes unstable and transforms either into β-Ti at high
temperature or into ω-Ti at high pressure. In what concerns the α to ω phase transformation …

[HTML][HTML] Crystal metamorphosis at stress extremes: how soft phonons turn into lattice defects

X Liu, J Gu, Y Shen, J Li - NPG Asia Materials, 2016 - nature.com
At 0 K, phonon instability controls the ideal strength and the ultrafast dynamics of defect
nucleation in perfect crystals under high stress. However, how a soft phonon evolves into a …

Shock and Microstructural Characterization of the Phase Transition in Titanium Crystals

BM Morrow, PA Rigg, DR Jones, FL Addessio… - Journal of Dynamic …, 2017 - Springer
A multicrystal comprised of a small number of large crystals of high-purity titanium and a
0001 0001 oriented high-purity single crystal titanium sample were shock loaded using gas …

Effect of Zr on the properties of (TiZr) Ni alloys from first-principles calculations

QM Hu, R Yang, JM Lu, L Wang, B Johansson, L Vitos - Physical review B, 2007 - APS
The effect of Zr on the martensitic transformation (MT) behavior and mechanical properties of
(Ti 0.5− x Zr x) Ni 0.5 alloys is investigated by calculating the elastic constants and elastic …

Tuning thermal expansion by a continuing atomic rearrangement mechanism in a multifunctional titanium alloy

DL Gong, HL Wang, EG Obbard, SJ Li, R Yang… - Journal of Materials …, 2021 - Elsevier
As to multifunctional titanium alloys with high strength and low elastic modulus, thermal
training is crucial to tune their thermal expansion from positive to negative, resulting in a …

Strain-rate effect on plasticity and ω-phase transformation in single crystal titanium: A molecular dynamics study

S Rawat, S Chaturvedi - Mechanics of Materials, 2020 - Elsevier
We employ molecular dynamics simulations to investigate the role of applied strain rate on
plasticity (twinning and dislocation slip) and ω-phase transformation in single crystal titanium …

Molecular dynamics study of surface effect on martensitic cubic-to-tetragonal transformation in Ni–Al alloy

K Saitoh, WK Liu - Computational Materials Science, 2009 - Elsevier
Molecular dynamics (MD) study of martensitic transformation (MT) in nickel and aluminum
alloy is performed. The behavior focused on is transformation between crystalline structures …

Explanation of the microscopic mechanism of h-BN isostructural transformation under biaxial strain

Y Niu, Z Cheng, Y Xu, Z Lu, G Zhang - Materials Today Communications, 2021 - Elsevier
Polymorphism and stacking faults can seriously affect the physical properties of two-
dimensional materials. What's important, the biaxial strain has a significant impact on the …