Manufacturing Technology 2024, 24(4):700-709 | DOI: 10.21062/mft.2024.062

Microstructural Analysis, Corrosion Resistance, and Wear Performance Study of Al0.8FeCoNiCrCu0.5Si0.2 High-Entropy Alloy

Peng Zhang ORCID..., Yanzhou Li ORCID...
School of Mechanical and Vehicle Engineering, West Anhui University, Lu'an 237012, Anhui, China

The high-entropy alloy with the composition Al0.8FeCoNiCrCu0.5Si0.2 was produced through a pro-cess in-volving a vacuum arc melting method. Comprehensive characterization was performed through techniques such as XRD, SEM, and TEM. The findings revealed that the alloy primarily con-sists of Fe-Cr and Al-Ni phases, displaying predominantly two body-centered cubic structures. The alloy exhibited a characteristic dendritic cast structure. The alloy predominantly has high-angle grain boundaries accounting for 96.1%. Its grains demonstrate minimal internal strain and reduced lattice anomalies. The alloy showcased resistance with a corrosion current density of 1.4×10-7 A/cm2 and a corrosion potential of 0.28047 V. Post-corrosion examinations emphasized regions abundant in Al and Cu as the primary degradation sites. The addition of Si has further improved the alloy's resistance to corrosion. In terms of abrasion durability, the alloy exhibit-ed a wear scar length of only 1.42 mm, substantially less than the 1.88 mm found in 45# steel, highlighting its enhanced resistance to wear. This wear resistance is attributed to its inherent BCC1 and BCC2 phase structures and the hardness it derives from its unique composition. Owing to its superior traits, this high-entropy alloy presents promising potential for applications, including coatings, and advanced automotive components.

Keywords: Al0.8FeCoNiCrCu0.5Si0.2, Microstructure, Corrosion resistance, Wear resistance
Grants and funding:

This study was supported by the High-level Talents Research Project of West Anhui University (Grant No. WGKQ2021068), the Opening Project of Key Laboratory of Electric Drive and Control of Anhui Higher Education Institutes(DQKJ202006), the Crosswise Project of West Anhui University in 2020 ”Intelligent production line of metal composite board (sub-project)”(20201203), Crosswise Project of West Anhui University in 2021 ”Intelligent upgrade of high-speed turning center unit components”(20210330), Key Project of Natural Science Research in Universities of Anhui Province(KJ2021A0947), Key project of Natural Science Research in West Anhui University (WXZR202116)

Received: February 17, 2024; Revised: June 19, 2024; Accepted: June 20, 2024; Prepublished online: July 1, 2024; Published: September 1, 2024  Show citation

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Zhang P, Li Y. Microstructural Analysis, Corrosion Resistance, and Wear Performance Study of Al0.8FeCoNiCrCu0.5Si0.2 High-Entropy Alloy. Manufacturing Technology. 2024;24(4):700-709. doi: 10.21062/mft.2024.062.
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