Author： Aguirre I. Gimenez S. Talacchia S. Gómez-Acebo T. Iturriza I.
Publisher： Maney Publishing
ISSN： 1743-2901
Source： Powder Metallurgy, Vol.42, Iss.4, 1999-04, pp. : 353-357
Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.
Abstract
Water atomised high vanadium M35M high speed steel powders with different carbon contents were cold compacted at 700 MPa and sintered under an N2 rich atmosphere. Full density specimens were obtained at temperatures between 1140 and 1105°C for carbon contents between 1·8 and 2·5 wt-% respectively. The sintering behaviour of these powder mixtures was correlated with dilatometric curves and phase diagram calculations made by Thermo-Calc software. It is demonstrated that densification takes place above the solidus temperature, within the austenite + carbide + liquid phase field, and that nitrogen widens this region, which is responsible for increased sinterability with regards to vacuum sintered high speed steel.
Related content
By Levenfeld B. Várez A. Torralba J.
Metallurgical and Materials Transactions A, Vol. 33, Iss. 6, 2002-06 ,pp. :
Access to resources
Recommend
