Direct imaging of atomistic grain boundary migration

J Wei, B Feng, R Ishikawa, T Yokoi, K Matsunaga… - Nature Materials, 2021 - nature.com
Grain boundary (GB) migration plays an important role in modifying the microstructures and
the related properties of polycrystalline materials, and is governed by the atomistic …

Metastable grain boundaries: the roles of structural and chemical disorders in their energetics, non-equilibrium kinetic evolution, and mechanical behaviors

M He, Y Wang, Y Fan - Journal of Physics: Condensed Matter, 2024 - iopscience.iop.org
Complex environments in advanced manufacturing usually involve ultrafast laser or ion
irradiation which leads to rapid heating and cooling and drives grain boundaries (GBs) to …

[КНИГА][B] Grain boundary migration in metals: thermodynamics, kinetics, applications

G Gottstein, LS Shvindlerman - 2009 - taylorfrancis.com
A major goal of materials science is to create new engineering materials and optimize their
cost and performance. Understanding how adjacent materials behave at their borders is an …

Misorientation-dependent transition between grain boundary migration and sliding in FCC metals

Q Huang, Q Zhao, H Zhou, W Yang - International Journal of Plasticity, 2022 - Elsevier
Grain boundaries (GBs) play a crucial role in the mechanical behaviors of nanocrystalline
materials. The dynamics of GBs depend on a variety of intrinsic and extrinsic factors …

Structures and energies of Σ 3 asymmetric tilt grain boundaries in copper and aluminium

MA Tschopp, DL McDowell - Philosophical Magazine, 2007 - Taylor & Francis
The objective of this research is to use atomistic simulations to investigate the energy and
structure of symmetric and asymmetric Σ3⟨ 110⟩ tilt grain boundaries. A nonlinear …

Grain boundary shear–migration coupling—I. In situ TEM straining experiments in Al polycrystals

F Mompiou, D Caillard, M Legros - Acta Materialia, 2009 - Elsevier
Grain boundary (GB) migration was dynamically observed and characterized by means of in
situ transmission electron microscopy straining experiments at moderate temperature in …

A classical equation that accounts for observations of non-Arrhenius and cryogenic grain boundary migration

ER Homer, OK Johnson, D Britton… - npj Computational …, 2022 - nature.com
Observations of microstructural coarsening at cryogenic temperatures, as well as numerous
simulations of grain boundary motion that show faster migration at low temperature than at …

Kinetics of grain boundary migration in nanosized Al polycrystals

GB Bizana, LA Barrales-Mora - Acta Materialia, 2023 - Elsevier
Classical theories of grain growth assume that grain boundary curvature and velocity are
linearly correlated. However, recent experimental observations seem to imply that the …

Grain-boundary shear-migration coupling. II. Geometrical model for general boundaries

D Caillard, F Mompiou, M Legros - Acta Materialia, 2009 - Elsevier
Grain boundary-mediated plasticity is now a well-established phenomenon, especially in
fine-grained or nanocrystalline metals. It has been described in several models, but most of …

Comparing calculated and measured grain boundary energies in nickel

GS Rohrer, EA Holm, AD Rollett, SM Foiles, J Li… - Acta Materialia, 2010 - Elsevier
Recent experimental and computational studies have produced two large grain boundary
energy data sets for Ni. Using these results, we perform the first large-scale comparison …