Mengtian Liang, Jinpeng Zhang, Jie Gao, Huaqing Yi, Bingbing Yin, Zhenhua Yang, Fugang Qi, Yi Yang
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引用次数: 0
Abstract
High-entropy alloys (HEAs) are promising for extreme environments, but their high-temperature oxidation resistance remains a significant challenge. We have combined experimental data with the first principles to investigate the effect of titanium content on AlCoCrNiTix HEAs at 900 ℃. Results show that optimal Ti doping reduces the oxidation rate by two orders of magnitude and promotes the formation of a protective α-Al2O3 scale. This contrasts with previous findings by demonstrating the critical role of Ti in stabilising the oxide layer and preventing spalling. Our results provide a theoretical basis for the design of AlCoCrNi-based HEAs with improved high-temperature performance.
期刊介绍：
Corrosion occurrence and its practical control encompass a vast array of scientific knowledge. Corrosion Science endeavors to serve as the conduit for the exchange of ideas, developments, and research across all facets of this field, encompassing both metallic and non-metallic corrosion. The scope of this international journal is broad and inclusive. Published papers span from highly theoretical inquiries to essentially practical applications, covering diverse areas such as high-temperature oxidation, passivity, anodic oxidation, biochemical corrosion, stress corrosion cracking, and corrosion control mechanisms and methodologies.
This journal publishes original papers and critical reviews across the spectrum of pure and applied corrosion, material degradation, and surface science and engineering. It serves as a crucial link connecting metallurgists, materials scientists, and researchers investigating corrosion and degradation phenomena. Join us in advancing knowledge and understanding in the vital field of corrosion science.
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