Slurry and dry particle erosion wear properties of WC-10Co4Cr and Cr3C2-25NiCr hardmetal coatings deposited by HVOF and HVAF spray processes

Ville Matikainen, Silvia Rubio Peregrina, Niko Ojala, Heli Koivuluoto, J. Schubert, S. Houdkova, Petri Vuoristo

    Research output: Chapter in Book/Report/Conference proceedingConference contributionProfessional

    Abstract

    Thermally sprayed hardmetal coatings were produced to provide improved erosion wear compared to conventional cast GX4CrNi13-4 martensitic steel (CA6NM) used in hydro turbine components. Sprayed coatings and reference materials were tested with high-speed slurry pot tester using either fine or coarse quartz as the erosive media. Additional erosion tests were carried out with centrifugal dry erosion tester. Tungsten carbide based coatings provided the highest wear resistance due to the high hardness and even distribution of the fine carbide particles. The cast 13-4 steel samples experienced up to 180 times higher wear rates in fine quartz slurry and up to 36 times higher wear rates in coarse slurry compared to the sprayed coatings.
    Original languageEnglish
    Title of host publicationProceedings of the 18th Nordic Symposium on Tribology, NORDTRIB 2018
    Subtitle of host publication18-21 June 2018, Uppsala, Sweden
    Number of pages2
    Publication statusPublished - 2018
    Publication typeD3 Professional conference proceedings
    EventNORDIC SYMPOSIUM ON TRIBOLOGY: NORDTRIB -
    Duration: 1 Jan 1900 → …

    Conference

    ConferenceNORDIC SYMPOSIUM ON TRIBOLOGY
    Period1/01/00 → …

    Fingerprint

    Dive into the research topics of 'Slurry and dry particle erosion wear properties of WC-10Co4Cr and Cr3C2-25NiCr hardmetal coatings deposited by HVOF and HVAF spray processes'. Together they form a unique fingerprint.

    Cite this