TY - JOUR
T1 - Evaluation of High-Frequency Induction Heat Sintering and Conventional Sintering in AlxCoCrFeMnNi High-Entropy Alloys
AU - Ruiz-Esparza-Rodríguez, M.A.
AU - Garay-Reyes, C.G.
AU - Mendoza-Duarte, J.M.
AU - Estrada-Guel, I.
AU - Hernández-Rivera, J.L.
AU - Cruz-Rivera, J.J.
AU - Gutiérrez-Castañeda, E.
AU - Gonzalez Sanchez, Sergio
AU - Garay-Tapia, A.M.
AU - Martínez-Sánchez, R.
N1 - Funding information: The scholarship under grant No. 715550 provided by CONACYT, México is duly recognized. Authors gratefully thank K. Campos- Venegas, R. A. Ochoa-Gamboa, and C. E. Ornelas-Gutierrez for their valuable technical support throughout the study. In addition, the authors gratefully financial support (No.23022) provided by Centro de Iinvestigación en Materiales Avanzados, SC, México.
PY - 2022/7/25
Y1 - 2022/7/25
N2 - 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%).
AB - 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%).
KW - High-entropy alloy
KW - High-frequency induction heat sintering
KW - Aluminum
KW - Coarsening
KW - Precipitation
UR - https://www.scopus.com/pages/publications/85127716889
U2 - 10.1016/j.jallcom.2022.164780
DO - 10.1016/j.jallcom.2022.164780
M3 - Article
SN - 0925-8388
VL - 910
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
M1 - 164780
ER -