Synergistic Cr solid-solution strengthening and Y grain-boundary segregation in nanocrystalline Ni alloys suppresses dislocation emission, grain-boundary sliding, and grain rotation, yielding a record hardness of 11.0 GPa for single-phase Ni-based alloys.
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Monte Carlo and molecular dynamics simulations of Al-Ni nanocrystalline alloys show amorphous grain-boundary complexions enable shear-transformation-zone plasticity while short-range-ordered complexions drive stress-heterogeneity-controlled shear localization.
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Synergistic doping of the grain interior and grain boundary alters deformation mechanisms and enables extreme strength in nanocrystalline Ni-Cr-Y alloys
Synergistic Cr solid-solution strengthening and Y grain-boundary segregation in nanocrystalline Ni alloys suppresses dislocation emission, grain-boundary sliding, and grain rotation, yielding a record hardness of 11.0 GPa for single-phase Ni-based alloys.
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Amorphous vs. Short-Range-Ordered Complexions: Consequences for Grain-Boundary-Mediated Plasticity in Nanocrystalline Al-Ni Alloys
Monte Carlo and molecular dynamics simulations of Al-Ni nanocrystalline alloys show amorphous grain-boundary complexions enable shear-transformation-zone plasticity while short-range-ordered complexions drive stress-heterogeneity-controlled shear localization.