Intermetallic bonded titanium carbide cermets are of interest due to the high hardness, high-temperature strength, and corrosion resistance. Their thermal expansion coefficient can also be close to cast iron's, which enhances their utility in mechanisms where thermal expansion differences must be minimized. In order for these cermets to be utilized by the automotive and diesel industries, a cost-effective production method must be developed. A formation process based on low-pressure powder injection was developed and studied as a potential low-cost alternative to conventional manufacturing methods. Test rods of nickel aluminide, nickel aluminide-iron, nickel-chromium, and nickel-chromium-iron bonded 60 vol.% TiC were formed using both pre-alloyed and reaction sintered powders. Bimodal feedstocks showed high defect rates that were attributed to phase separation within the feedstock and particle migration during binder removal. Feedstocks containing a very broad particle size distribution of varied morphology were very well suited for low-pressure powder injection molding.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Low-pressure injection molding of intermetallic-TiC cermets


    Beteiligte:
    Wittmer, D.E. (Autor:in) / Hazelwood, J.A. (Autor:in) / Steffen, J.W. (Autor:in) / Tiegs, T.N. (Autor:in)


    Erscheinungsdatum :

    2003


    Format / Umfang :

    6 Seiten, 2 Bilder, 2 Tabellen, 8 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Injection Molding

    Haaxma, H. | SAE Technical Papers | 1967


    Review of development of cermets

    Deutsch, G.C. / Meyer, A.J. / Ault, Jr., G.M. | Engineering Index Backfile | 1958


    High pressure injection molding coating of the 1980s

    Mauro,B. / Ongena,R. / Chemical Coating Division,US | Kraftfahrwesen | 1986


    Reaction Injection Molding

    Lewis, George D. | SAE Technical Papers | 1982


    Reaction Injection Molding

    Lewis,G.D. / Union Carbide,US | Kraftfahrwesen | 1982