14 papers
Phase nucleation and evolution pathways of a nanostructured Inconel 725 alloy during heat treatment
Ruqing Cao, Ikponmwosa J. Iyinbor, Andrea M. Hodge +1
Physical vapor deposition enables the fabrication of nanostructured superalloys with unique defect architectures, yet their phase evolution pathways can differ significantly from t…
A computational alloy design framework for the promotion of amorphous grain boundary complexions
Prince Sharma, Jaime Marian, Jason R. Trelewicz +1
Amorphous grain boundary complexions have been shown to be radiation tolerant interfaces that can also reduce grain boundary embrittlement, marking them as favorable microstructura…
Extraction of a structural short-range order descriptor from nanobeam electron diffraction patterns using a transfer learning approach
Junjie Wu, Timothy J. Rupert
Amorphous solids exhibit structural short-range order despite lacking long-range crystalline order, with this structural descriptor found to be important for determining mechanical…
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…
Synergistic doping of the grain interior and grain boundary alters deformation mechanisms and enables extreme strength in nanocrystalline Ni-Cr-Y alloys
Yi Liu, Jason R. Trelewicz, Timothy J. Rupert
Solid solution addition and grain boundary segregation have been independently shown to enhance the strength of nanocrystalline alloys. In the present study, the interplay between…