[PDF][PDF] Dislocation Mobility Function as a Key to Understanding Plasticity of Refractory Metals and Alloys

S Starikov - Available at SSRN 4843481 - researchgate.net
The dependence of dislocation mobility on temperature, stress and alloy composition is a
key to describing plastic deformation in metals. A special case is the plasticity of body …

Multiscale simulation of plasticity in bcc metals

D Weygand, M Mrovec, T Hochrainer… - Annual Review of …, 2015 - annualreviews.org
Significant progress in our understanding of plasticity in body-centered cubic (bcc) metals
during the last decade has enabled rigorous multiscale modeling based on quantitative …

[图书][B] Stochastic studies of dislocation mobility in BCC alloys

CS Deo - 2003 - search.proquest.com
The interaction of dislocations and solute atoms is key to understanding crystal plasticity in
alloys. I present a kinetic Monte Carlo (kMC) simulation of the glide of a screw dislocation in …

On the strain rate sensitivity of size-dependent plasticity in BCC iron at elevated temperatures: discrete dislocation dynamics investigation

P El Ters, MA Shehadeh - Mechanics of Materials, 2020 - Elsevier
Multiscale discrete dislocation plasticity (MDDP) simulations are carried out to investigate
the mechanical response and microstructure evolution of BCC iron micropillars under …

Temperature and strain rate dependent flow criterion for bcc transition metals based on atomistic analysis of dislocation glide

R Gröger, V Vitek - International journal of materials research, 2009 - degruyter.com
Abstract 1/2111 screw dislocations that possess non-planar cores and thus a high lattice
friction (Peierls) stress control the plastic deformation of pure bcc metals. In this paper we …

A time-dependent deformation mechanism in metallic fcc crystals

AM Cuitino - Acta materialia, 1997 - Elsevier
In this article, we present a time-dependent deformation mechanism for fcc metal single
crystals in which the resulting deformation is produced by the cumulative effect of dislocation …

[PDF][PDF] Analytical Plastic Flow Rules For BCC Metals Involving Non-Schmid Effects

R Gröger, V Vitek - Los Alamos National Laboratory, 2008 - groger.ipm.cz
We have performed atomistic simulations of an isolated screw dislocation in bcc Mo and W
using Bond Order Potentials [Gröger, 2007]. Based on these results we formulated an …

Ab initio informed yield criterion across body-centered cubic transition metals

B Bienvenu, L Dezerald, D Rodney, E Clouet - Acta Materialia, 2022 - Elsevier
Plasticity of body-centered cubic (bcc) metals is atypical at low temperatures, caused by the
important lattice friction of 1/2< 111> screw dislocations. In this paper, we present a yield …

Dislocation motion in tungsten: atomistic input to discrete dislocation simulations

K Srivastava, R Gröger, D Weygand… - International Journal of …, 2013 - Elsevier
A computational framework for the discrete dislocation dynamics simulation of body-
centered cubic (bcc) metals which incorporates atomistic simulation results is developed …

Dislocation mobility and the mechanical response of bcc single crystals: a mesoscopic approach

M Tang, LP Kubin, GR Canova - Acta Materialia, 1998 - Elsevier
A mesoscopic simulation of dislocations and plasticity in bcc crystals at low temperatures is
developed and applied to the case of Ta. The thermally activated nucleation of double kinks …