Grain boundaries and interfaces in slip transfer

TR Bieler, P Eisenlohr, C Zhang, HJ Phukan… - Current Opinion in Solid …, 2014 - Elsevier
The effect of slip transfer on heterogeneous deformation of polycrystals has been a topic of
recurring interest, as this process can either lead to the nucleation of damage, or prevent …

Exploring new links between crystal plasticity models and high-energy X-ray diffraction microscopy

PA Shade, WD Musinski, M Obstalecki… - Current Opinion in Solid …, 2019 - Elsevier
The advancement and transition of computational materials models requires corresponding
developments in experimental methods to provide new phenomenological insights as well …

Direct measurement of critical resolved shear stress of prismatic and basal slip in polycrystalline Ti using high energy X-ray diffraction microscopy

L Wang, Z Zheng, H Phukan, P Kenesei, JS Park… - Acta Materialia, 2017 - Elsevier
Abstract Knowledge of the critical resolved shear stress (CRSS) values of different slip
modes is important for accurately modeling plastic deformation of hexagonal materials …

Intra-grain orientation distributions in deformed aluminium: Synchrotron X-ray diffraction experiment and crystal-plasticity finite-element simulation

L Renversade, R Quey - Acta Materialia, 2024 - Elsevier
The development of intra-grain orientation distributions is analyzed for 446 individual grains
of an aluminium polycrystal deformed in tension to successive strains of 1, 1.5, 2, 2.5 and …

Incipient dynamic recrystallization and adiabatic shear bands in Ti–7Al studied via in situ X-ray diffraction

DJ Magagnosc, JT Lloyd, CS Meredith… - International Journal of …, 2021 - Elsevier
The interconnected phenomena of dynamic recrystallization (DRX) and adiabatic shear
bands (ASBs) are critical features of dynamic deformation and fracture in metals. Despite …

Effect of realistic 3D microstructure in crystal plasticity finite element analysis of polycrystalline Ti-5Al-2.5 Sn

C Zhang, H Li, P Eisenlohr, W Liu, CJ Boehlert… - International Journal of …, 2015 - Elsevier
The effect of constitutive parameters and microstructure on the kinematic and constitutive
responses within grains in a crystal plasticity finite element (CPFE) simulation of a …

Understanding Micromechanical Material Behavior Using Synchrotron X-rays and In Situ Loading

MP Miller, DC Pagan, AJ Beaudoin, KE Nygren… - … materials transactions A, 2020 - Springer
With the flux of high-energy, deeply penetrating X-rays that a 3rd-generation synchrotron
source can provide and the current generation of large fast area detectors, the development …

[HTML][HTML] Inferring the probability distribution over strain tensors in polycrystals from diffraction based measurements

A Henningsson, AG Wills, SA Hall, J Hendriks… - Computer Methods in …, 2023 - Elsevier
Polycrystals illuminated by high-energy X-rays or neutrons produce diffraction patterns in
which the measured diffraction peaks encode the individual single crystal strain states …

An algorithm for resolving intragranular orientation fields using coupled far-field and near-field high energy X-ray diffraction microscopy

KE Nygren, DC Pagan, JV Bernier, MP Miller - Materials Characterization, 2020 - Elsevier
We present a novel algorithm for reconstructing spatial intragranular lattice orientation fields
using both far-field and near-field high energy X-ray diffraction microscopy (HEDM) …

X-ray characterization of the micromechanical response ahead of a propagating small fatigue crack in a Ni-based superalloy

DP Naragani, PA Shade, P Kenesei, H Sharma… - Acta Materialia, 2019 - Elsevier
The small fatigue crack (SFC) growth regime in polycrystalline alloys is complex due to the
heterogeneity in the local micromechanical fields, which result in high variability in crack …