The oxidation-resistance mechanism of WTaNbTiAl refractory high entropy alloy
نویسندگان
چکیده
The WTaNbTiAl alloy demonstrated excellent oxidation resistance with a 31.83 mg/cm2 of specific mass gain after 48 h at 1000 °C in the air environment. Based on multi-scale microstructural characterizations, diffusion-controlled three-layers oxide scale model was proposed to explain kinetics this RHEA. In addition, thermodynamic calculation results shed light formation mechanism oxides based standard free energy formation. present work uncovered oxidation-resistance RHEA via delicate analysis oxides, which assists guide design oxidation-resistant high entropy alloys.
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ژورنال
عنوان ژورنال: Corrosion Science
سال: 2022
ISSN: ['1879-0496', '0010-938X']
DOI: https://doi.org/10.1016/j.corsci.2022.110377