9 papers · 1 filter
Stress field modification near linear complexions increases the effective obstacle size and strengthening effect
Zhengyu Zhang, Daniel S. Gianola, Timothy J. Rupert
Linear complexions are stable defect states that form along dislocations and recent experiments have demonstrated strengthening effects exceeding classical precipitation hardening…
Thicker amorphous grain boundary complexions reduce plastic strain localization in nanocrystalline Cu-Zr
Esther C. Hessong, Nicolo Maria della Ventura, Tongjun Niu +6
Amorphous grain boundary complexions have been shown to increase the plasticity of nanocrystalline alloys as compared to ordered grain boundaries. Here, the effect of an important…
Energy-Resolved EBSD using a Monolithic Direct Electron Detector
Nicolò M. Della Ventura, Kalani Moore, McLean P. Echlin +4
Accurate quantification of the energy distribution of backscattered electrons (BSEs) contributing to electron backscatter diffraction (EBSD) patterns remains as an active challenge…
Orientation-Adaptive Virtual Imaging of Defects using EBSD
Nicolò M. della Ventura, James D. Lamb, William C. Lenthe +8
EBSD is a foundational technique for characterizing crystallographic orientation, phase distribution, and lattice strain. Embedded within EBSD patterns lies latent information on d…
Enhanced strain rate sensitivity due to platelet linear complexions in Al-Cu
Pulkit Garg, Daniel S. Gianola, Timothy J. Rupert
Platelet array linear complexions have been predicted in Al-Cu, with notable features being dislocation faceting and climb into the precipitate, both of which should impact plastic…
Bulk nanocrystalline Al-Mg-Y alloys with amorphous grain boundary complexions display high strength and compressive plasticity
Tianjiao Lei, Esther Hessong, Brandon Fields +3
Although nanocrystalline alloys regularly exhibit high strengths, their use in structural applications often face challenges due to sample size limitations, unstable microstructure…