252 citations · 559 across the 12 of their papers we have counts for
7 papers · 1 filter
On the Variability of Grain Boundary Mobility in the Isoconfigurational Ensemble
Anqi Qiu, Ian Chesser, Elizabeth Holm
Recent grain growth experiments have revealed that the same type of grain boundary can have very different mobilities depending on its local microstructure. In this work, we use mo…
Optimal transportation of grain boundaries: A forward model for predicting migration mechanisms
Ian Chesser, Elizabeth Holm, Brandon Runnels
It has been hypothesized that the most likely atomic rearrangement mechanism during grain boundary (GB) migration is the one that minimizes the lengths of atomic displacements in t…
Applied Machine Learning to Predict Stress Hotspots II: Hexagonal close packed materials
Ankita Mangal, Elizabeth A. Holm
Stress hotspots are regions of stress concentrations that form under deformation in polycrystalline materials. We use a machine learning approach to study the effect of preferred s…
Understanding the anomalous thermal behavior of sigma 3 grain boundaries in a variety of FCC metals
Ian Chesser, Elizabeth Holm
We present a case study of the complex temperature dependence of grain boundary mobility. The same general incoherent twin boundary in different FCC metals is found to display anti…
Applied Machine Learning to Predict Stress Hotspots I: Face Centered Cubic Materials
Ankita Mangal, Elizabeth A. Holm
We investigate the formation of stress hotspots in polycrystalline materials under uniaxial tensile deformation by integrating full field crystal plasticity based deformation model…
The structure and motion of incoherent Σ3 grain boundaries in FCC metals
Jonathan Humberson, Elizabeth A. Holm
Synthetic driving force molecular dynamics simulations were utilized to survey grain boundary mobility in three classes of incoherent Σ3 twin boundaries: <112>, <110>, and <111> ti…