Evaluation of High-Frequency Induction Heat Sintering and Conventional Sintering in AlxCoCrFeMnNi High-Entropy Alloys

M.A. Ruiz-Esparza-Rodríguez, C.G. Garay-Reyes, J.M. Mendoza-Duarte, I. Estrada-Guel, J.L. Hernández-Rivera, J.J. Cruz-Rivera, E. Gutiérrez-Castañeda, Sergio Gonzalez Sanchez, A.M. Garay-Tapia, R. Martínez-Sánchez*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

AlxCoCrFeMnNi high-entropy alloys with different aluminum concentrations (x = 0.5, 1, and 1.5 at%) were synthesized by mechanical alloying followed by consolidation using two different sintering methods, conventional (CS) and high-frequency induction heat + conventional (HFIHS + CS). The results show the presence of FCC, BCC, and B2ordered phases in all systems, regardless of the sintering method. The BCC phase exhibits morphological changes (cuboidal-type and plate-like) associated with the two sintering methods involving different diffusion rates and affecting the hardness values. The M23C6 carbide is identified in systems sintered by the CS method; meanwhile, the M7C3 carbide is identified in the HFIHS + CS method. Finally, the HFIHS + CS method results in a higher level of densification (~95%) than the CS method (~80%).
Original languageEnglish
Article number164780
Number of pages8
JournalJournal of Alloys and Compounds
Volume910
Early online date8 Apr 2022
DOIs
Publication statusE-pub ahead of print - 8 Apr 2022

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