13 citations · 18 across the 10 of their papers we have counts for
10 papers
Modulation of structural short-range order due to chemical patterning in multi-component amorphous interfacial complexions
Esther C. Hessong, Zhengyu Zhang, Tianjiao Lei +3
Amorphous interfacial complexions have been shown to restrict grain growth and improve damage tolerance in nanocrystalline alloys, with increased chemical complexity stabilizing th…
Kinetics of Amorphous Defect Phases Measured Through Ultrafast Nanocalorimetry
W. Streit Cunningham, Tianjiao Lei, Hannah C. Howard +2
Recognition of the role of extended defects on local phase transitions has led to the conceptualization of the defect phase, localized thermodynamically stable interfacial states t…
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…
High-throughput assessment of the microstructural stability of segregation-engineered nanocrystalline Al-Ni-Y alloys
W. Streit Cunningham, Jungho Shin, Tianjiao Lei +2
Segregation engineering has emerged as a promising pathway towards designing thermally stable nanocrystalline alloys with enhanced mechanical properties. However, the compositional…
Binary nanocrystalline alloys with strong glass forming interfacial regions: Complexion stability, segregation competition, and diffusion pathways
Tianjiao Lei, Esther C. Hessong, Daniel S. Gianola +1
Stabilization of grain structure is important for nanocrystalline alloys, and grain boundary segregation is a common approach to restrict coarsening. Doping can alter grain boundar…
Intermetallic particle heterogeneity controls shear localization in high-strength nanostructured Al alloys
Tianjiao Lei, Esther C. Hessong, Jungho Shin +2
The mechanical behavior of two nanocrystalline Al alloys, Al-Mg-Y and Al-Fe-Y, is investigated with in-situ micropillar compression testing. Both alloys were strengthened by a hier…
Growth and structural transitions of core-shell nanorods in nanocrystalline Al-Ni-Y
Tianjiao Lei, Mingjie Xu, Jungho Shin +2
Unique nanorod precipitates with a core-shell structure are found to nucleate from the grain boundaries of a bulk nanocrystalline Al-Ni-Y alloy fabricated via powder consolidation,…
Bulk nanocrystalline Al alloys with hierarchical reinforcement structures via grain boundary segregation and complexion formation
Tianjiao Lei, Jungho Shin, Daniel S. Gianola +1
Grain size engineering, particularly reducing grain size into the nanocrystalline regime, offers a promising pathway to further improve the strength-to-weight ratio of Al alloys. U…
Bulk High-Entropy Hexaborides
Mingde Qin, Qizhang Yan, Yi Liu +7
For the first time, a group of CaB6-typed cubic rare earth high-entropy hexaborides have been successfully fabricated into dense bulk pellets (>98.5% in relative densities). The sp…
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…