Proceedings of the Korean Powder Metallurgy Institute Conference (한국분말야금학회:학술대회논문집)

The Korean Powder Metallurgy & Materials Institute (한국분말재료학회 (*구 분말야금학회))
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Study for the Development of Fe-NbC Composites by Advanced PM Techniques

  • Gordo, E. (Department of Materials Science and Engineering, Universidad Carlos III de Madrid, Avda. de la Universidad) ;
  • Gomez, B. (Department of Materials Science and Engineering, Universidad Carlos III de Madrid, Avda. de la Universidad) ;
  • Gonzalez, R. (Department of Materials Science and Engineering, Universidad Carlos III de Madrid, Avda. de la Universidad) ;
  • Ruiz-Navas, E.M. (Department of Materials Science and Engineering, Universidad Carlos III de Madrid, Avda. de la Universidad)
  • Published : 2006.09.24
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Abstract

The development of Fe-based metal matrix composites (MMCs) with high content of hard phase has been approached by combining the use of advanced powder metallurgy techniques like high-energy milling (HEM), cold isostatic pressing (CIP) and vacuum sinterings. A 30% vol. of NbC particles was mixed with Fe powder by HEM in a planetary mill during 10h, characteristing the powder by the observation of morphology and microstructure by scanning electron microscopy (SEM). After of sintering process the variation of density, hardness,carbon content and the microstructural changes observed, permits to find the optimal conditions of processing. Afterwards, a heat treatment study was performed to study the hardenability of the composite.

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