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HVOF sprayed Fe-based wear-resistant coatings with carbide reinforcement, synthesized in situ and by mechanically activated synthesis

  1. 1.
    SYSNO ASEP0538140
    Document TypeJ - Journal Article
    R&D Document TypeJournal Article
    Subsidiary JČlánek ve WOS
    TitleHVOF sprayed Fe-based wear-resistant coatings with carbide reinforcement, synthesized in situ and by mechanically activated synthesis
    Author(s) Tkachivskyi, D. (EE)
    Juhani, K. (EE)
    Surženkov, A. (EE)
    Kulu, P. (EE)
    Tesař, Tomáš (UFP-V) ORCID
    Mušálek, Radek (UFP-V) RID, ORCID
    Lukáč, František (UFP-V) ORCID
    Antoš, J. (CZ)
    Vostřák, M. (CZ)
    Antonova, M. (LV)
    Goljandin, D. (EE)
    Number of authors11
    Article number1092
    Source TitleCoatings. - : MDPI
    Roč. 10, č. 11 (2020), s. 1-15
    Number of pages15 s.
    Languageeng - English
    CountryCH - Switzerland
    KeywordsAbrasive wear ; Coating ; Cr C –Ni 3 2 ; In situ synthesis ; Mechanically activated synthesis ; Powder ; Thermal spray ; TiC–NiMo
    Subject RIVJP - Industrial Processing
    OECD categoryMaterials engineering
    Method of publishingOpen access
    Institutional supportUFP-V - RVO:61389021
    UT WOS000593673900001
    EID SCOPUS85096127089
    AnnotationThe aims of this study were: (1) to produce composite coatings by high velocity oxy fuel (HVOF) spraying with steel matrix reinforced by cermets (a) Cr3C2–20%Ni and (b) TiC–20%NiMo, manufactured by mechanically activated synthesis (MAS), (2) to synthesize in situ a carbide reinforcement for iron matrix from a mixture of titanium and carbon during HVOF reactive thermal spraying (RTS), (3) to compare the wear resistance of produced coatings. As a reference, HVOF sprayed coatings from commercial Cr3C2–25%NiCr (Amperit 588.074) and AISI 316L were utilized. Study of microstructure revealed the inhomogeneity of the Cr-based MAS coating, the Ti-based MAS coating had typical carbide granular structure, and the Ti-based RTS coating possessed elongated structures of TiC. The X-ray diffraction revealed two main phases in the Cr-based MAS coating: Cr3C2 and austenite, and two phases in the Ti-based coatings: TiC and austenite. Among the studied coatings, the Cr-based MAS coating demonstrated the highest low-force hardness (490 HV0.3). During the abrasive rubber wheel test (ASTM G65), the Ti-based MAS coating showed the best wear resistance, followed by Cr3C2–25%NiCr and Ti-based RTS coating. In the abrasive–erosive test (GOST 23.201-78), the Ti-based MAS coating was 44% better than Cr3C2–25%NiCr coating. The Ti-based RTS coating was 11% more wear resistant than the reference Cr3C2–25%NiCr coating.
    WorkplaceInstitute of Plasma Physics
    ContactVladimíra Kebza,, Tel.: 266 052 975
    Year of Publishing2021
    Electronic address
Number of the records: 1  

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