Repositório do Conhecimento Institucional do Centro Universitário FEI
 

Engenharia de Materiais

URI permanente desta comunidadehttps://repositorio.fei.edu.br/handle/FEI/17

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20121

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Autor: search.filters.author.AMBROZIO FILHO, F.Assunto: search.filters.subject.Microstructure

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    Artigo 4 Citação(ões) na Scopus
    Sintering of AISI M2 High Speed Steel with the Addition of NbC
    (2012-08-05) WENTZCOVITCH, A.; AMBROZIO FILHO, F.; SILVA, L. C. E.; Mauricio Neves
    The influence of adding 6 wt% (NbC) niobium carbide on the sintering temperature and microstructure of high speed steel - AISI M2 (0.87% C, 5.00% Mo, 6.00% W, 4,00% Cr, 2.00% V and Fe bal.) powder was studied. The starting material was obtained by vacuum melting followed by atomization in water. The samples were axially cold compacted in a cylindrical matrix and then vacuum sintered at 1250 and 1350 °C. Dilatometry and differential scanning calorimetry measurements indicated an increase in sintering temperature with addition of niobium to the AISI M2 steel. Optical and scanning electron microscope observations revealed a microstructure with uniformly distributed niobium carbides.