Ultra-strong and strain-hardenable ultrafine-grained medium-entropy alloy via enhanced grain-boundary strengthening

Jeong Min Park,Dae Cheol Yang,Han Jin Kim,Dong Geun Kim,Sunghak Lee,Hyoung Seop Kim,Seok Su Sohn

Ultra-strong and strain-hardenable ultrafine-grained medium-entropy alloy via enhanced grain-boundary strengthening

2021

Jeong Min Park
Dae Cheol Yang
Han Jin Kim
Dong Geun Kim
Sunghak Lee
Hyoung Seop Kim
Seok Su Sohn

An equiatomic VCoNi medium-entropy alloy possesses high sensitivity to grain-boundary strengthening, achieved by severe lattice distortions. Its ultrafine-grain structure enables 1.5 Gigapascal yie...

Keywords:

Strain (chemistry)
Alloy
Entropy (classical thermodynamics)
Thermodynamics
Materials science
Grain boundary strengthening

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