abstract

• AlxCoCrFeMnNi high-entropy alloys with different aluminum concentrations (x = 0.5, 1, and 1.5 at%25) were synthesized by mechanical alloying followed by consolidation using two different sintering methods, conventional (CS) and high-frequency induction heat %2b conventional (HFIHS %2b 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 %2b CS method. Finally, the HFIHS %2b CS method results in a higher level of densification (~95%25) than the CS method (~80%25). © 2022 Elsevier B.V.

authors

• Cruz Rivera José de Jesús
• Estrada-Guel I.
• Garay-Reyes C.G.
• González S.
• Gutiérrez Castañeda Emmanuel José
• Hernández Rivera José Luis
• Martínez-Sánchez R.
• Mendoza-Duarte J.M.
• Ruiz-Esparza-Rodríguez M.A.

publication date

• 2022-01-01

funding provided via

• Consejo Nacional de Ciencia y Tecnología, CONACYT: 23022  Grant

published in

• Journal of Alloys and Compounds  Journal

keywords

• Aluminum; Coarsening; High-entropy alloy; High-frequency induction heat sintering; Precipitation Aluminum alloys; Carbides; Chromium alloys; Cobalt alloys; Entropy; High-entropy alloys; Iron alloys; Manganese alloys; Mechanical alloying; Precipitation (chemical); Sintering; Aluminium concentration; B2 ordered phase; BCC phase; Conventional sintering; Heat sintering; High entropy alloys; High-frequency induction heat sintering; Morphological changes; Sintering methods; Synthesised; Coarsening

Digital Object Identifier (DOI)

• 10.1016/j.jallcom.2022.164780

PubMed ID

start page

end page

volume

• 910

issue