Optimizing strength-corrosion properties in sulfuric acid environment via tailoring V–Cr composition in medium-entropy VCrCoNi alloys
Source abstract
Abstract
The corrosion resistance of VCrCoNi medium-entropy alloys in a 0.5 M H 2SO 4 solution was investigated by tailoring V and Cr compositions while minimizing microstructural differences. The elemental effects were discussed 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.
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Research context
OpenAlex topics: High Entropy Alloys Studies · High-Temperature Coating Behaviors · High Temperature Alloys and Creep
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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