Slip planes in bcc transition metals

CR Weinberger, BL Boyce… - International materials …, 2013 - journals.sagepub.com
Slip in face centred cubic (fcc) metals is well documented to occur on {111} planes in< 110>
directions. In body centred cubic (bcc) metals, the slip direction is also well established to …

Dislocation–obstacle interactions at the atomic level

DJ Bacon, YN Osetsky, D Rodney - Dislocations in solids, 2009 - Elsevier
Dislocation–obstacle interactions that resist the glide of dislocations in metals, and hence
increase the applied stress necessary for plastic deformation, are treated at the atomic scale …

Ultrastrong and ductile BCC high-entropy alloys with low-density via dislocation regulation and nanoprecipitates

X Yan, PK Liaw, Y Zhang - Journal of Materials Science & Technology, 2022 - Elsevier
The high strength is a typical advantage of body-centered-cubic high-entropy alloys
(BCCsingle bondHEAs). However, brittleness and weak strain-hardening ability are still their …

Unusual activated processes controlling dislocation motion in body-centered-cubic high-entropy alloys

B Chen, S Li, H Zong, X Ding… - Proceedings of the …, 2020 - National Acad Sciences
Atomistic simulations of dislocation mobility reveal that body-centered cubic (BCC) high-
entropy alloys (HEAs) are distinctly different from traditional BCC metals. HEAs are …

Atomistic simulations of dislocations in a model BCC multicomponent concentrated solid solution alloy

SI Rao, C Varvenne, C Woodward, TA Parthasarathy… - Acta Materialia, 2017 - Elsevier
Molecular statics and molecular dynamics simulations are presented for the structure and
glide motion of a/2< 111> dislocations in a randomly-distributed model-BCC Co 16.67 Fe …

[图书][B] Dislocations, mesoscale simulations and plastic flow

L Kubin - 2013 - books.google.com
In the past twenty years, new experimental approaches, improved models and progress in
simulation techniques have brought new insights into longstanding issues concerning …

Modeling solution hardening in BCC refractory complex concentrated alloys: NbTiZr, Nb1. 5TiZr0. 5 and Nb0. 5TiZr1. 5

SI Rao, B Akdim, E Antillon, C Woodward… - Acta Materialia, 2019 - Elsevier
Large scale, atomistic simulations of the core structure and mobility of ½ [111] screw, edge
and mixed dislocations in ternary multicomponent alloys (eg High Entropy alloys), NbTiZr …

Unraveling the temperature dependence of the yield strength in single-crystal tungsten using atomistically-informed crystal plasticity calculations

D Cereceda, M Diehl, F Roters, D Raabe… - International Journal of …, 2016 - Elsevier
We use a physically-based crystal plasticity model to predict the yield strength of body-
centered cubic (bcc) tungsten single crystals subjected to uniaxial loading. Our model …

Quantum effect on thermally activated glide of dislocations

L Proville, D Rodney, MC Marinica - Nature materials, 2012 - nature.com
Crystal plasticity involves the motion of dislocations under stress. So far, atomistic
simulations of this process have predicted Peierls stresses, the stress needed to overcome …

Kinetics of dislocations in pure Fe. Part I. In situ straining experiments at room temperature

D Caillard - Acta Materialia, 2010 - Elsevier
In situ straining experiments have been carried out in pure Fe, in order to determine the
geometry and the kinetics of dislocation glide at room temperature. Straight screw …