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|Title:||Sintering of AISI M2</SUB> High Speed Steel with the Addition of NbC|
AMBROZIO FILHO, F.
SILVA, L. C. E.
NEVES, M. D. M.
|Abstract:||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.|
|Keywords:||high speed steel|
|Journal:||Materials Science Forum (Online)|
|Citation:||WENTZCOVITCH, A.; AMBROZIO FILHO, F.; SIVA, L. C. E.; NEVES, M. D. M. Sintering of AISI M2</SUB> high speed steel with the addition of NbC. Materials Science Forum (Online), v. 727-728, p. 90-95, Aug. 2012.|
|Access Type:||Acesso Restrito|
|Appears in Collections:||Artigos|
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