Hot extrusion and characterization of an Al-Fe-VorNb-Si powder alloy prepared by high energy milling

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dc.contributor.authorCOELHO, R. E.
dc.contributor.authorAMBRÓZIO FILHO, F.
dc.date.accessioned2023-08-26T23:50:15Z
dc.date.available2023-08-26T23:50:15Z
dc.date.issued2008-09-29
dc.description.abstractThis paper presents the microstructural and mechanical characterization of an alloy, Al90.8- Fe6.2-(VorNb)1.0-Si2.0 (at%), prepared by high energy milling elemental powders of Al, Fe, V and Si, followed by vacuum hot pressing and hot extrusion. The powders were milled for 10 hours at 800 and 1400 rpm and the extruded bars were characterized by X ray diffraction, scanning electron microscopy, transmission electron microscopy and energy dispersive analysis of selected areas. The following phases were found in the extruded bars: Al8Fe2Si, Al12(Fe,V)3Si in the alloy with V and Al8Fe2Si, Al12(Fe,Nb)3Si, and AlNb2 in the alloy with Nb. Tensile tests and Vickers hardness at room temperature were carried out on the extruded bars. The bars from powders milled at 1400 rpm showed the highest strength and hardness and are similar to those obtained by rapid solidification in the alloy Al-Fe-V-Si. The improved mechanical properties of these bars could be attributed to the dispersoids in the microstructure.
dc.description.firstpage27
dc.description.lastpage32
dc.description.volume2
dc.identifier.citationCOELHO, R. E.; AMBRÓZIO FILHO, F. Hot extrusion and characterization of an Al-Fe-VorNb-Si powder alloy prepared by high energy milling. Proceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2008, v. 2, p. 27-32, sept. 2008.
dc.identifier.urihttps://repositorio.fei.edu.br/handle/FEI/5024
dc.relation.ispartofProceedings of the Euro International Powder Metallurgy Congress and Exhibition, Euro PM 2008
dc.rightsAcesso Restrito
dc.titleHot extrusion and characterization of an Al-Fe-VorNb-Si powder alloy prepared by high energy milling
dc.typeArtigo de evento
fei.scopus.citations0
fei.scopus.eid2-s2.0-84902180848
fei.scopus.subjectElemental powders
fei.scopus.subjectEnergy dispersive analysis
fei.scopus.subjectMechanical characterizations
fei.scopus.subjectMicro-structural
fei.scopus.subjectPowder alloys
fei.scopus.subjectRoom temperature
fei.scopus.subjectScanning electrons
fei.scopus.subjectVacuum hot pressing
fei.scopus.updated2025-02-01
fei.scopus.urlhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84902180848&origin=inward
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