A phenomenological dislocation mobility law for bcc metals

G Po, Y Cui, D Rivera, D Cereceda, TD Swinburne… - Acta Materialia, 2016 - Elsevier
Dislocation motion in body centered cubic (bcc) metals displays a number of specific
features that result in a strong temperature dependence of the flow stress, and in shear …

Plastic anisotropy and dislocation trajectory in BCC metals

L Dezerald, D Rodney, E Clouet, L Ventelon… - Nature …, 2016 - nature.com
Plasticity in body-centred cubic (BCC) metals at low temperatures is atypical, marked in
particular by an anisotropic elastic limit in clear violation of the famous Schmid law …

Screw dislocations in BCC transition metals: from ab initio modeling to yield criterion

E Clouet, B Bienvenu… - Comptes …, 2021 - comptes-rendus.academie-sciences …
We show here how density functional theory calculations can be used to predict the
temperatureand orientation-dependence of the yield stress of body-centered cubic (BCC) …

Data-driven modeling of dislocation mobility from atomistics using physics-informed machine learning

Y Tian, S Bagchi, L Myhill, G Po, E Martinez… - npj computational …, 2024 - nature.com
Dislocation mobility, which dictates the response of dislocations to an applied stress, is a
fundamental property of crystalline materials that governs the evolution of plastic …

Non-glide effects and dislocation core fields in BCC metals

A Kraych, E Clouet, L Dezerald, L Ventelon… - npj Computational …, 2019 - nature.com
A hallmark of low-temperature plasticity in body-centered cubic (BCC) metals is its departure
from Schmid's law. One aspect is that non-glide stresses, which do not produce any driving …

Orientation dependent plastic localization in the refractory high entropy alloy HfNbTaTiZr at room temperature

MA Charpagne, JC Stinville, F Wang, N Philips… - Materials Science and …, 2022 - Elsevier
A statistical and quantitative perspective on the incipient slip localization behavior of the
HfNbTaTiZr refractory high entropy alloy is presented, after monotonic tensile testing at room …

Incorporating physically-based microstructures in materials modeling: Bridging phase field and crystal plasticity frameworks

H Lim, F Abdeljawad, SJ Owen… - … and Simulation in …, 2016 - iopscience.iop.org
The mechanical properties of materials systems are highly influenced by various features at
the microstructural level. The ability to capture these heterogeneities and incorporate them …

Accurate determination of active slip systems using a novel lattice rotation analysis: Quasi-in-situ EBSD/ECCI study on the homogeneous/heterogeneous deformation …

Y Zhou, C Shen, H Shi, J Lu, L Zhu, B Qian, L Zhang - Materialia, 2024 - Elsevier
The accurate determination of slip systems is crucial for understanding deformation
mechanisms of metals in particular, how slip/twining transfer or blocking occurs. This paper …

Phase field dislocation dynamics (PFDD) modeling of non-Schmid behavior in BCC metals informed by atomistic simulations

H Kim, N Mathew, DJ Luscher, A Hunter - … of the Mechanics and Physics of …, 2021 - Elsevier
Abstract Body-Centered Cubic (BCC) metals exhibit anomalous mechanical properties such
as twinning/anti-twinning and tension/compression asymmetry, which are attributed to …

Reconciled top-down and bottom-up hierarchical multiscale calibration of bcc Fe crystal plasticity

AE Tallman, LP Swiler, Y Wang… - … Journal for Multiscale …, 2017 - dl.begellhouse.com
In this paper, a test for connections between models via parameter sets is developed. A set
of parameters from the flow rule of a crystal plasticity model for bcc Fe is identified for …