86 citations · 370 across the 73 of their papers we have counts for
8 papers · 1 filter
In situ high-cycle fatigue reveals the importance of grain boundary structure in nanocrystalline Cu-Zr
Jennifer D. Schuler, Christopher M. Barr, Nathan M. Heckman +4
Nanocrystalline metals typically have high fatigue strengths, but low resistance to crack propagation. Amorphous intergranular films are disordered grain boundary complexions that…
Linear complexions: Metastable phase formation and coexistence at dislocations
Vladyslav Turlo, Timothy J. Rupert
The unique three-phase coexistence of metastable B2-FeNi with stable L10-FeNi and L12-FeNi3 is discovered near edge dislocations in body-centered cubic Fe-Ni alloys using atomistic…
Atomistic modeling of interfacial segregation and structural transitions in ternary alloys
Yang Hu, Timothy J. Rupert
Grain boundary engineering via dopant segregation can dramatically change the properties of a material. For metallic systems, most current studies concerning interfacial segregatio…
Combined effects of nonmetallic impurities and planned metallic dopants on grain boundary energy and strength
Zhifeng Huang, Fei Chen, Qiang Shen +2
Most research on nanocrystalline alloys has been focused on planned doping of metals with other metallic elements, but nonmetallic impurities are also prevalent in the real world.…
Thick amorphous complexion formation and extreme thermal stability in ternary nanocrystalline Cu-Zr-Hf alloys
Charlette M. Grigorian, Timothy J. Rupert
Building on the recent discovery of tough nanocrystalline Cu-Zr alloys with amorphous intergranular films, this paper investigates ternary nanocrystalline Cu-Zr-Hf alloys with a fo…
Concurrent transitions in wear rate and surface microstructure in nanocrystalline Ni-W
Jason F. Panzarino, Timothy J. Rupert
Nanocrystalline metals are promising materials for wear-resistant applications due to their superior strength and hardness, but prior work has shown that cyclic loading can lead to…