Assessing microstructures and mechanical resistances of as-atomized and as-extruded samples of Al-1wt%Fe-1wt%Ni alloy

Dessi, João Guilherme; Gomes, Leonardo Fernandes; Peres, Maurício Mirdhaui; Canté, Manuel Venceslau; Spinelli, José Eduardo; Silva, Bismarck Luiz

Assessing microstructures and mechanical resistances of as-atomized and as-extruded samples of Al-1wt%Fe-1wt%Ni alloy

Página do item simplificado Estatísticas

dc.contributor.author	Dessi, João Guilherme
dc.contributor.author	Gomes, Leonardo Fernandes
dc.contributor.author	Peres, Maurício Mirdhaui
dc.contributor.author	Canté, Manuel Venceslau
dc.contributor.author	Spinelli, José Eduardo
dc.contributor.author	Silva, Bismarck Luiz
dc.date.accessioned	2021-03-12T14:55:30Z
dc.date.available	2021-03-12T14:55:30Z
dc.date.issued	2017-01-15
dc.description.resumo	Current applications of Al–Fe–Ni alloys include Alnico permanent magnets, industrial furnaces, and cladding of nuclear fuel plates. In spite of industrial interest, limited knowledge regarding to inter-relations between microstructure and mechanical resistance can be noted to date. Thus, the aim of the present contribution is, firstly, to analyze the microstructure features of α-Al phase (size and morphology) during atomization of the ternary Al-1wt%Fe-1wt%Ni alloy, including determination of cooling rates and hardness of the obtained powders. Secondly, the nature, size and distribution of intermetallic compounds (IMC), strength and ductility of hot consolidated bulks by extrusion from two different ranges of Al-Fe-Ni powder size (powder size between 75 and 106 μm and powder size up 106 μm and less 180 μm) are examined. The sequence of processes includes nitrogen gas atomization followed by compaction and hot extrusion consolidation at both 350 °C and 400 °C. The procedures to characterize the samples involve X-ray diffraction (XRD), optical microscopy, scanning electron microscopy (SEM), Vickers hardness and mechanical tensile tests. Al-rich cells prevailed for either smaller or larger Al-1wt%Fe-1wt%Ni atomized powders with formation of IMCs not only in the cell walls but also precipitated within the α-Al matrix. Strength and ductility of as-extruded samples are found to be consistent with their microstructures	pt_BR
dc.identifier.citation	Silva, B.L.; DESSI, J. G.; GOMES, L. F.; PERES, M. M.; CANTE, M. V.; SPINELLI, J. E.. Assessing microstructures and mechanical resistances of as-atomized and as-extruded samples of Al-1wt.%Fe-1wt.%Ni alloy. Journal of Alloys and Compounds, v. 691, p. 952-960, 2017. Disponivel em: https://www.sciencedirect.com/science/article/abs/pii/S092583881632641X?via%3Dihub Acesso em: 26 jan. 2021. https://doi.org/10.1016/j.jallcom.2016.08.243	pt_BR
dc.identifier.doi	10.1016/j.jallcom.2016.08.243
dc.identifier.issn	0925-8388
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/31834
dc.language	en	pt_BR
dc.publisher	Elsevier	pt_BR
dc.rights	Attribution 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by/3.0/br/	*
dc.subject	Al-Fe-Ni	pt_BR
dc.subject	Rapid solidification	pt_BR
dc.subject	Microstructure	pt_BR
dc.subject	Mechanical resistance	pt_BR
dc.subject	Hardness	pt_BR
dc.title	Assessing microstructures and mechanical resistances of as-atomized and as-extruded samples of Al-1wt%Fe-1wt%Ni alloy	pt_BR
dc.type	article	pt_BR