Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.9/1556
Título: Effect of vanadium and carbon content on the sinterability of water atomised high speed steel powders
Autor: Mascarenhas, João
Oliveira, M. Manuela
Wright, C. S.
Palavras-chave: Sintering behaviour
Microstucture
Phase diagrams
Data: Mai-2006
Citação: Mascarenhas, J. ; Oliveira, M. M.; Wright, C. S. Effect of vanadium and carbon content on the sinterability of water atomised high speed steel powders. In: Materials Science Forum, Vols. 514-516, May 2006, p. 527-533
Resumo: This paper presents the results of an investigation into the sintering behaviour of three vanadium enriched variants of T42 high-speed steel. Powders were prepared by water atomization with vanadium and carbon contents of 6-8 wt% and 2.2 -2.7 wt%, respectively. These were annealed, die pressed and sintered in vacuum. All three alloys were sintered to full density giving "as-sintered" microstructures comprising globular MC carbides dispersed in a martensitic matrix. Optimum sintering temperatures were in the range 1240-1250 degrees C with lower optimum temperatures associated with higher carbon levels. Sintering characteristics are correlated with phase diagrams calculated using ThermoCalc (TM) software and TCFe2000 database. The implications for the design of sinterable vanadium containing high-speed steels are discussed.
URI: http://hdl.handle.net/10400.9/1556
Aparece nas colecções:UEP - Artigos em revistas internacionais

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