Grain boundary migration in polycrystals
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 …
has recently been found that the factors governing migration rates of boundaries in bicrystals …
Extreme abnormal grain growth: connecting mechanisms to microstructural outcomes
If variety is the spice of life, then abnormal grain growth (AGG) may be the materials
processing equivalent of sriracha sauce. Abnormally growing grains can be prismatic …
processing equivalent of sriracha sauce. Abnormally growing grains can be prismatic …
Energy dissipation by grain boundary replacement during grain growth
The changes in both the grain boundary area and grain boundary energy that occur during
grain growth have been measured in polycrystalline Ni using high energy diffraction …
grain growth have been measured in polycrystalline Ni using high energy diffraction …
Examination of computed aluminum grain boundary structures and energies that span the 5D space of crystallographic character
The space of possible grain boundary structures is vast, with 5 macroscopic, crystallographic
degrees of freedom that define the character of a grain boundary. While numerous datasets …
degrees of freedom that define the character of a grain boundary. While numerous datasets …
[HTML][HTML] Grain boundary migration in polycrystalline α-Fe
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 …
before and after a 600° C anneal. These data were used to determine the areas, curvatures …
Dynamic behavior of grain boundaries with misorientations in the vicinity of Σ3 coherent and incoherent twin boundaries in Al bicrystals
JE Brandenburg, LA Barrales-Mora, S Tsurekawa… - Acta Materialia, 2023 - Elsevier
The migration behaviour of different grain boundaries with misorientations close to the Σ3
CSL orientation relationship in high purity Al bicrystals under the capillary driving force and …
CSL orientation relationship in high purity Al bicrystals under the capillary driving force and …
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 …
linearly correlated. However, recent experimental observations seem to imply that the …
Phase-field model for anisotropic grain growth
Grain boundary properties may depend on the five macroscopic crystallographic degrees of
freedom of the boundary, these being the misorientation between crystals and the inclination …
freedom of the boundary, these being the misorientation between crystals and the inclination …
[HTML][HTML] New phase-field model for polycrystalline systems with anisotropic grain boundary properties
N Moelans - Materials & Design, 2022 - Elsevier
In this paper, a new methodology is presented to inlude anisotropic grain boundary
properties in a phase-field model. The new approach is thermodynamically consistent and …
properties in a phase-field model. The new approach is thermodynamically consistent and …
Oxidation-induced recrystallization and damage mechanism of a Ni-based single-crystal superalloy during creep
Q Xiao, Y Xu, X Liu, Y Wang, W Zhang - Materials Characterization, 2023 - Elsevier
The creep tests for Ni-based single-crystal superalloy are carried out under 980° C, and the
microstructure at the crack tip is characterized at micro-and nano-scales. Numerous γ'phase …
microstructure at the crack tip is characterized at micro-and nano-scales. Numerous γ'phase …