Thermodynamic analysis of corrosion of carbides of titanium, niobium and tungsten

Krishnan Kannoorpatti, Varmaa Marimuthu, Isabelle Dulac

    Research output: Chapter in Book/Report/Conference proceedingConference Paper published in Proceedings

    Abstract

    The Pourbaix diagrams also known as the E-pH diagrams were constructed for hardfacing alloys based on titanium carbide (TiC), niobium carbide (NbC) and tungsten carbides (W2C and WC) at 298K (25oC). Using the thermodynamic data available for the main species at 298K (25oC), Pourbaix diagrams for all these carbides are constructed at a concentration of 10-6M of aqueous species. It was found that the stability of carbides is described only by the immune region of the Pourbaix diagram for carbides. Although passive region has been included in the study, it was unclear from literature if there was a passive film or how protective it was.
    Original languageEnglish
    Title of host publicationProceedings of the MISE Conference
    Place of PublicationBrisbane, Australia
    PublisherMaterials Forum
    Publication statusPublished - 2015
    EventMaterials Innovations in Surface Engineering 2015 - Queensland University of Technology, Brisbane, Australia
    Duration: 24 Nov 201526 Nov 2015
    http://www.materialsaustralia.com.au/mise-conference/home

    Conference

    ConferenceMaterials Innovations in Surface Engineering 2015
    Abbreviated titleMISE 2015
    CountryAustralia
    CityBrisbane
    Period24/11/1526/11/15
    Internet address

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    Cite this

    Kannoorpatti, K., Marimuthu, V., & Dulac, I. (2015). Thermodynamic analysis of corrosion of carbides of titanium, niobium and tungsten. In Proceedings of the MISE Conference Brisbane, Australia: Materials Forum.