Sintering of AISI M2</SUB> High Speed Steel with the Addition of NbC

Nenhuma Miniatura disponível
Citações na Scopus
3
Tipo de produção
Artigo
Data
2012-08-05
Autores
WENTZCOVITCH, A.
AMBROZIO FILHO, F.
SILVA, L. C. E.
Mauricio Neves
Orientador
Periódico
Materials Science Forum (Online)
Título da Revista
ISSN da Revista
Título de Volume
Citação
WENTZCOVITCH, A.; AMBROZIO FILHO, F.; SIVA, L. C. E.; NEVES, M. D. M. Sintering of AISI M2 high speed steel with the addition of NbC. Materials Science Forum (Online), v. 727-728, p. 90-95, Aug. 2012.
Palavras-chave
High speed steel,Microstructure,NbC,Powder metallurgy,Sintering
Resumo
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.

Coleções