Self-equilibrated backstresses induce compensation between hardening and softening: Micromechanical and microstructural features

Q Xie, JJ Sidor, J Lian, S Yin, Y Wang - Materials Science and Engineering …, 2022 - Elsevier
For crystal plasticity formulation neglecting the strain gradients at the dislocation scale,
backstresses are necessary to satisfy the mesoscopic stress equilibrium and strain …

Crystallographic orientation and spatially resolved damage in a dispersion-hardened Al alloy

Q Xie, J Lian, JJ Sidor, F Sun, X Yan, C Chen, T Liu… - Acta Materialia, 2020 - Elsevier
The in-situ neutron diffraction technique, in combination with both the full-field crystal elasto-
viscoplastic finite element model and microstructural characterization, was used to study the …

Effects of the isotropic and anisotropic hardening within each grain on the evolution of the flow stress, the r-value and the deformation texture of tensile tests for …

Q Xie, A Van Bael, YG An, J Lian, JJ Sidor - Materials Science and …, 2018 - Elsevier
Both the isotropic and anisotropic hardening laws implemented in a crystal elastic visco-
plastic finite element model (CEPFEM) were tested for the prediction of the flow stress, the r …

Grain interaction mechanisms leading to intragranular orientation spread in tensile deformed bulk grains of interstitial-free steel

G Winther, JP Wright, S Schmidt… - International Journal of …, 2017 - Elsevier
The spatially resolved intragranular orientation spread in two representative bulk grains of
interstitial-free steel deformed to 9% tension has been investigated. A three-dimensional X …

Correlation between dislocation hardening and the geometrically-necessary-dislocation densities in a hexagonal-close-packed Zr-2wt% Ti alloy

Q Xie, Z Li, H Ma, S Liu, X Liu, J Liu, JJ Sidor - Materials Science and …, 2023 - Elsevier
Geometrically necessary bands (GNBs) that are reflected by variations in the geometrically
necessary dislocation densities (GNDDs) often appear at early stages of deformation …

[HTML][HTML] Assessment of crystal plasticity finite element simulations of the hot deformation of metals from local strain and orientation measurements

C Pinna, Y Lan, MF Kiu, P Efthymiadis… - International Journal of …, 2015 - Elsevier
Simulations of the deformation of microstructures at high homologous temperatures have
been carried out using a Crystal Plasticity Finite Element (CPFE) model to predict texture …

The prediction of differential hardening behaviour of steels by multi-scale crystal plasticity modelling

P Eyckens, H Mulder, J Gawad, H Vegter… - International journal of …, 2015 - Elsevier
An essential aspect of materials modelling in the field of metal plasticity is hardening. The
classical assumption of isotropic hardening in metal plasticity models is often too simplified …

In-situ neutron diffraction investigation on twinning/detwinning activities during tension-compression load reversal in a twinning induced plasticity steel

Q Xie, Y Chen, P Yang, Z Zhao, YD Wang, K An - Scripta Materialia, 2018 - Elsevier
The tension-compression type of load reversal produces an asymmetric cyclic tension-
compression behavior and varied yielding stresses in the subsequent monotonic tension …

Crystal plasticity finite element study on the formation of Goss-oriented deformation inhomogeneous regions in electrical steels

H Wang, P Yang, Q Xie, W Jiang - International Journal of Material Forming, 2023 - Springer
For electrical steels, the volume fraction and distribution of the residual Goss-oriented
regions after cold rolling is critical in controlling the Goss texture during subsequent …

Deformation of Ni–Mn-Ga 7M modulated martensite through detwinning/twinning and forward/reverse intermartensitic transformation studied by in-situ neutron …

N Zou, Z Li, Y Zhang, W Gan, B Yang, X Zhao, C Esling… - Acta materialia, 2019 - Elsevier
Shape memory alloys, especially the newly developed Ni–Mn-based heusler-type
intermetallic compounds, exhibit specific mechanical responses to mechanical loading …