Effect of the Ni content on the thermal and magnetic properties of Fe-Ni-Co alloys

Autor(es)

Paganotti, A. ^[1] ; Bessa, C. V. X. ^{[1, 2]} ; Silva, C. C. S. ^[1] ; Peixoto, E. B. ^{[3, 4]} ; Duque, J. G. S. ^[3] ; Silva, R. A. G. ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Paulo, Lab Mat & Mech Manufacture, Diadema - Brazil

^[2] Maua Inst Tecnol, Sao Caetano do Sul - Brazil

^[3] Univ Fed Sergipe, Itabaiana - Brazil

^[4] Inst Fed Alagoas, Campus Piranhas, BR-57460000 Piranhas, AL - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Materials Chemistry and Physics; v. 261, MAR 1 2021.
• Citações Web of Science: 0

Resumo

In this study, the influence of the Ni content on the phase transformations of FeNiCo alloys was evaluated by analyzing seven different alloys with Fe-x%at.Ni-10%at.Co composition, in which x = 30, 24.5, 20, 15, 10, 5, and 0. These alloys were initially annealed and then studied by different experimental techniques. The results showed that the Ni concentration plays an important role in the magnetic transition temperature of the FeNiCo alloys, changing the magnetic and structural transition temperatures and promoting a magnetic hysteresis as high as 500 K. From these results, it was possible to propose a scheme for phase transformation of the Fe-Ni-Co alloys with 10%at.Co and content of nickel lower than 30%at. (AU)

• Processo FAPESP: 19/06717-0 - Estudo da estabilidade de fases em ligas multicomponentes
• Beneficiário: Ricardo Alexandre Galdino da Silva
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 16/08583-3 - Estudo de ligas e nanoligas do sistema Fe-Ni-Co para aplicação em motores termomagnéticos
• Beneficiário: André Paganotti
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto