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Recently, novel high‐entropy alloys (HEAs) of Al–Co–Cr–Fe–Ni–Ti systems containing face‐centered cubic (FCC) matrix and γ′ precipitates (L12 phase) have been studied. They show superior mechanical properties at room (298 K) and cryogenic temperatures (77 K). Herein, microstructure deformation and fracture after tensile strain are investigated. The results show that multiple‐layered stacking faults...
In this work, the coopetitive relationships among dynamic ferrite transformation, reverse ferrite transformation, and austenite recrystallization were investigated by using dynamic dilatometry, optical metallography, and electron backscattering diffraction in an aluminum-containing low-carbon steel subjected to hot compressions in the two-phase region. The microscopic mechanism of concurrent dynamic...
This work is to calculate the dc characteristics and investigate the internal quantum efficiencies of β-FeSi2-based DH LED and AlGaAs/GaAs DH LED by analytical methods. The internal quantum efficiencies are decreased as the applied forward-bias voltages are increased. When the intrinsic layer thicknesses and doping concentrations are increased, the internal quantum efficiencies will also increase...
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