86 citations · 370 across the 73 of their papers we have counts for
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In situ mechanical testing of an Al matrix composite to investigate compressive plasticity and failure on multiple length scales
Tianjiao Lei, Jenna L. Wardini, Olivia K. Donaldson +1
SiC particle-reinforced Al matrix composites exhibit high strength, high wear resistance, and excellent high-temperature performance, but can also have low plasticity and fracture…
Interdependent linear complexion structure and dislocation mechanics in Fe-Ni
Vladyslav Turlo, Timothy J. Rupert
Using large-scale atomistic simulations, dislocation mechanics in the presence of linear complexions are investigated in an Fe-Ni alloy, where the complexions appear as nanoparticl…
Dislocation-induced Y segregation at basal-prismatic interfaces in Mg
Zhifeng Huang, Vladyslav Turlo, Xin Wang +5
Solute segregation at twin boundaries in Mg has been widely investigated, yet this phenomenon has not been studied at the equally important basal-prismatic interfaces. To fill this…
Alloying induces directionally-dependent mobility and alters migration mechanisms of faceted grain boundaries
Megan J. McCarthy, Timothy J. Rupert
Faceted grain boundaries exhibit unusual segregation and migration tendencies. To gain a deeper understanding of how solute atoms interact with faceted interfacial structures durin…
Critical cooling rates for amorphous-to-ordered complexion transitions in Cu-rich nanocrystalline alloys
Charlette M. Grigorian, Timothy J. Rupert
Amorphous complexions in nanocrystalline metals have the potential to improve mechanical properties and radiation tolerance, as well as resistance to grain growth. In this study, t…
Shuffling mode competition leads to directionally-anisotropic mobility of faceted Σ11 boundaries in face centered cubic metals
Megan J. McCarthy, Timothy J. Rupert
Faceted grain boundaries can migrate in interesting and unexpected ways. For example, faceted Σ11 <110> tilt grain boundaries were observed to exhibit mobility values that could be…
Embracing the chaos: Alloying adds stochasticity to twin embryo growth
Yang Hu, Vladyslav Turlo, Irene J. Beyerlein +4
High-throughput atomistic simulations reveal the unique effect of solute atoms on twin variant selection in Mg-Al alloys. Twin embryos first undergo a stochastic incubation stage w…
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…