Journal
MATERIALS LETTERS
Volume 305, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2021.130770
Keywords
Medium entropy alloy; Stacking fault energy; Microstructure; Metals and alloys; Metallurgy
Funding
- Science, Technology Research Program of Chongqing Municipal Education Commission [KJQN202001301]
- Research project of Chongqing University of Technology [KLA210001]
- [2017RCH01]
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Ultra-strong medium entropy alloy VCoNi is designed through severe lattice distortion. Simulation results show that increasing Ta content can reduce the stacking fault energy of VCoNi, while keeping deformation twinnability almost unchanged. Experimental data indicates that the addition of Ta does not significantly increase the propensity for deformation twinning due to the chemical short-range order in VCoNi.
Ultra-strong medium entropy alloy (VCoNi) is designed via severe lattice distortion. Simulation calculation suggests the stacking fault energy of VCoNi can be reduced as increasing Ta contents, but keep the deformation twinnability almost unchanged. The experiment result suggests Ta addition can't remarkably increase the deformation twinning propensity due to the chemical short-range order in VCoNi.
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