9 papers
Emergence of directionally-anisotropic mobility in a faceted 11 <110> tilt grain boundary in Cu
Megan J. McCarthy, Timothy J. Rupert
Faceted grain boundaries, where grain boundary area is increased in the name of producing low-energy segments, can exhibit new and unexpected migration trends. For example, several…
Amorphous intergranular films mitigate radiation damage in nanocrystalline Cu-Zr
Jennifer D. Schuler, Charlette M. Grigorian, Christopher M. Barr +3
Nanocrystalline metals are promising radiation tolerant materials due to their large interfacial volume fraction, but irradiation-induced grain growth can eventually degrade any im…
Disconnection-mediated twin embryo growth in Mg
Yang Hu, Vladyslav Turlo, Irene J. Beyerlein +4
While deformation twinning in hexagonal close-packed metals has been widely studied due to its substantial impact on mechanical properties, an understanding of the detailed atomic…
Solid-state dewetting instability in thermally-stable nanocrystalline binary alloys
Jennifer D. Schuler, Guild Copeland, Khalid Hattar +2
Practical applications of nanocrystalline metallic thin films are often limited by instabilities. In addition to grain growth, the thin film itself can become unstable and collapse…
Prediction of a wide variety of linear complexions in face centered cubic alloys
Vladyslav Turlo, Timothy J. Rupert
Linear complexions are defect states that have been recently discovered along dislocations in body centered cubic Fe-based alloys. In this work, we use atomistic simulations to ext…
Amorphous Intergranular Films Enable the Creation of Bulk Nanocrystalline Cu-Zr with Full Density
Olivia K. Donaldson, Timothy J. Rupert
Nanocrystalline metal alloys show great potential as structural materials, but are often only available in small volumes such as thin films or powders. However, recent research has…