Grain boundary migration in polycrystals

GS Rohrer, I Chesser, AR Krause… - Annual Review of …, 2023 - annualreviews.org
Grain boundaries in polycrystalline materials migrate to reduce the total excess energy. It
has recently been found that the factors governing migration rates of boundaries in bicrystals …

Grain boundary velocity and curvature are not correlated in Ni polycrystals

A Bhattacharya, YF Shen, CM Hefferan, SF Li, J Lind… - Science, 2021 - science.org
Grain boundary velocity has been believed to be correlated to curvature, and this is an
important relationship for modeling how polycrystalline materials coarsen during annealing …

High-energy X-ray diffraction microscopy in materials science

JV Bernier, RM Suter, AD Rollett… - Annual Review of …, 2020 - annualreviews.org
High-energy diffraction microscopy (HEDM) is an implementation of three-dimensional X-ray
diffraction microscopy. HEDM yields maps of internal crystal orientation fields, strain states …

Grain boundary mobilities in polycrystals

J Zhang, W Ludwig, Y Zhang, HHB Sørensen… - Acta Materialia, 2020 - Elsevier
Most metals, ceramics, semiconductors and rocks are composed of small crystals known as
grains. When annealed, this polycrystalline structure coarsens, thus allowing the properties …

[HTML][HTML] Grain boundary migration in polycrystalline α-Fe

Z Xu, YF Shen, SK Naghibzadeh, X Peng… - Acta Materialia, 2024 - Elsevier
High energy x-ray diffraction microscopy was used to image the microstructure of α-Fe
before and after a 600° C anneal. These data were used to determine the areas, curvatures …

Characterization of metals in four dimensions

AJ Shahani, X **ao, EM Lauridsen… - Materials Research …, 2020 - Taylor & Francis
The ability to watch the three-dimensional (3D) evolution of structural materials is a
breakthrough in non-destructive characterization. In particular, X-ray tomographic imaging …

Three-dimensional observations of grain volume changes during annealing of polycrystalline Ni

A Bhattacharya, YF Shen, CM Hefferan, SF Li, J Lind… - Acta Materialia, 2019 - Elsevier
The orientations, locations, and sizes of approximately 2500 grains in a Ni polycrystal were
measured at six points in time during an interrupted annealing experiment by synchrotron x …

Comparison of simulated and measured grain volume changes during grain growth

X Peng, A Bhattacharya, SK Naghibzadeh… - Physical Review …, 2022 - APS
The three-dimensional microstructure of Ni, observed after five annealing intervals, was
compared to simulations of grain growth using the threshold dynamics method with the …

Experimental demonstration of coupled multi-peak bragg coherent diffraction imaging with genetic algorithms

MJ Wilkin, S Maddali, SO Hruszkewycz, A Pateras… - Physical Review B, 2021 - APS
Bragg coherent diffraction imaging has the potential to provide significant insight into the
structure-properties relationship for crystalline materials by imaging, with nanoscale …

Nondestructive evaluation of 3D microstructure evolution in strontium titanate

A Trenkle, M Syha, W Rheinheimer… - Journal of Applied …, 2020 - scripts.iucr.org
Nondestructive X-ray diffraction contrast tomography imaging was used to characterize the
microstructure evolution in a polycrystalline bulk strontium titanate specimen. Simultaneous …