1. A Lightweight AlCrTiV 0.5 Cu x High-Entropy Alloy with Excellent Corrosion Resistance.
- Author
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Peng, Zhen, Li, Baowei, Luo, Zaibin, Chen, Xuefei, Tang, Yao, Yang, Guannan, and Gong, Pan
- Subjects
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CORROSION in alloys , *CORROSION resistance , *COPPER , *VACUUM arcs , *CONSTRUCTION materials , *ELECTROLYTIC corrosion - Abstract
Lightweight high-entropy alloys (HEAs) are a new class of low-density, high strength-to-weight ratio metallic structural material. Understanding their corrosion behavior is crucial for designing microstructures for their practical applications. This work investigates the electrochemical corrosion behavior of lightweight HEAs AlCrTiV0.5Cux (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0) in a 0.6 M NaCl solution. These HEAs were produced by vacuum arc melting. In contrast to 304L stainless steel, all of the alloys exhibited lower current density levels caused by self-corrosion, with AlCrTiV0.5 demonstrating the highest corrosion resistance (0.131 μA/cm2). Corrosion resistance decreased along with the content of copper because copper segregation accelerated local corrosion throughout the alloy. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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