Mechanical properties of nanocrystalline HVOF coatings

Simo-Pekka Hannula, Teppo Fält, Erja Turunen, Timo Manninen

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    1 Citation (Scopus)

    Abstract

    Thermal spraying (TS) is increasingly used to deposit thick wear resistant coatings on machine and equipment parts. Therefore, it is of uttermost importance to know their mechanical properties in order to tailor and optimize the coatings for various applications. Typically properties of the thermal sprayed coatings are inferior as compared to corresponding bulk materials for various reasons. Furthermore, measurement of mechanical properties of coatings is much more tedious and difficult than deriving bulk properties. In this paper, mechanical properties of alumina based nanocrystalline coatings and the measurement techniques developed are reported. A model relating the microstructure of the sprayed coatings and their properties is introduced and discussed.
    Original languageEnglish
    Title of host publicationMaterials Science Forum
    Place of PublicationSwitzerland
    Pages114 - 117
    Publication statusPublished - 2006
    MoE publication typeA4 Article in a conference publication
    Event7th International Symposium on Eco-Materials Processing and Design, ISEPD-7 - Chengdu, China
    Duration: 8 Jan 200611 Jan 2006

    Publication series

    SeriesMaterials Science Forum
    Volume510-511
    ISSN0255-5476

    Conference

    Conference7th International Symposium on Eco-Materials Processing and Design, ISEPD-7
    Country/TerritoryChina
    CityChengdu
    Period8/01/0611/01/06

    Keywords

    • Coatings
    • thermal spraying
    • microstructure
    • hardness
    • elastic modulus
    • fracture toughness
    • modeling

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