Chung, Hyun Lim, Gukhyun Nam, Seungjin Cho, Hoon-Hwe Hong, Jihyun Sohn, Seok Su 2024-01-19T08:32:12Z 2024-01-19T08:32:12Z 2023-09-21 2023-10 0010-938X https://pubs.kist.re.kr/handle/201004/113214 The corrosion resistance of VCrCoNi medium-entropy alloys in a 0.5 M H2SO4 solution was investigated by tailoring V and Cr compositions while minimizing microstructural differences. The elemental effects were dis-cussed regarding the formation of the passive film and its subsequent impact on corrosion resistance. The results revealed that an increase in the Cr/V ratio enhances the corrosion resistance by forming a Cr-enriched passive film. However, the elevated ratio negatively affects the mechanical strength, wherein V plays a crucial role. The optimal balance between mechanical strength and corrosion resistance was discussed based on electrochemical measurements and immersion test results. English Pergamon Press Ltd. Optimizing strength-corrosion properties in sulfuric acid environment via tailoring V-Cr composition in medium-entropy VCrCoNi alloys Article 10.1016/j.corsci.2023.111442 1 Corrosion Science, v.223 Corrosion Science 223 N scie scopus 001059430900001 2-s2.0-85169893145 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science Metallurgy & Metallurgical Engineering Article MECHANICAL-PROPERTIES STAINLESS-STEELS SOLID-SOLUTION BEHAVIOR RESISTANCE VANADIUM MN MICROSTRUCTURE PASSIVATION DISSOLUTION Medium -entropy alloy Acid corrosion X-ray photoelectron spectroscopy Passive film