Transient dislocation emission from the nanosized interface of Cu–Ag composite under the coupled thermal-mechanical shock: Molecular dynamics simulations study

Y Wei, L Qiao, K Han, L Yang - Physica B: Condensed Matter, 2022 - Elsevier
In this study, we use molecular dynamics to simulate the deformation of Cu–Ag
nanocomposite under the coupled thermal-mechanical shock. We compare the dislocation …

Quantitative determination of the generalized stability of Fe-based binary alloys

Z Ding, H Hou, W Liu, J Kan, Y Sun, F Liu - Materialia, 2023 - Elsevier
Abstract Our recent study [Acta Mater. 201 (2020) 167–181] proposed a unified generalized
stability (GS) criterion to design high-performance metallic materials, but quantitative …

A stochastic discrete slip approach to microplasticity: Application to submicron W pillars

CJ Ruestes, J Segurado - International Journal of Plasticity, 2024 - Elsevier
A stochastic discrete slip approach is proposed to model plastic deformation in submicron
domains. The model is applied to the study of submicron pillar (D≤ 1 μ m) compression …

Indentation strain rate sensitivity of laser-powder bed fused and electron beam melted Ti–6Al–4V

HC Kaushik, SI Shakil, BS Amirkhiz, M Mohammadi… - Vacuum, 2022 - Elsevier
Indentation hardness (H in) and strain rate sensitivity (SRS) of additive manufactured Ti–6Al–
4V (Ti64) alloys fabricated through both laser powder bed fusion (L-PBF) and electron beam …

Unconventional dislocation starvation behavior of medium-entropy alloy single crystal pillars containing pre-existing dislocations

L Wang, B Liu, J Zhou, Y Cao, F Zhang… - Journal of Materials …, 2023 - Elsevier
The excellent dislocation storage ability of bulk multi-principal element alloys (MPEAs) has
been widely reported. To date, however, the underlying mechanisms of dislocation escape …

Characterization of Lomer junctions based on the Lomer arm length distribution in dislocation networks

B Katzer, K Zoller, J Bermuth, D Weygand, K Schulz - Scripta Materialia, 2023 - Elsevier
During the plastic deformation of crystalline materials, 3d dislocation networks form based
on dislocation junctions. Particularly, immobile Lomer junctions are essential for the stability …

Dislocation behavior in Cu single crystal joints under the ultrasonically excited high-strain-rate deformation

Q Ma, J Ma, J Zhou, X Zheng, H Ji - Journal of Materials Science & …, 2023 - Elsevier
The coupling effects of ultrasonic excitation and high-strain-rate deformation are the core
factors for weld formation during ultrasonic welding. However, interfacial deformation …

A hierarchical multiscale crystal plasticity model for refractory multi-principal element alloys

W Lu, Y Chen, W Zhang, F Tan, J Li, B Liu… - International Journal of …, 2024 - Elsevier
Refractory multiple principal elemental alloys (RMPEAs) show the excellent combinations of
mechanical properties and oxidation resistance, are considered the most promising as the …

The influence of hafnium removal on the microstructure and properties of 8YSZ ceramics

Y Li, H Sun, J Song, Z Zhang, H Lan, L Tian, K Xie - Ceramics International, 2023 - Elsevier
The effects of hafnium removal on the sinterability, phase composition, and microstructural,
mechanical, and electrical properties of 8YSZ (8 mol% yttrium stabilized zirconia) were …

Advanced modeling of higher-order kinematic hardening in strain gradient crystal plasticity based on discrete dislocation dynamics

YA Amouzou-Adoun, M Jebahi, S Forest… - Journal of the Mechanics …, 2024 - Elsevier
An extensive study of size effects on the small-scale behavior of crystalline materials is
carried out through discrete dislocation dynamics (DDD) simulations, intended to enrich …