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Effect of the grit blasting exposure time on the adhesion of Al2O3 and 316L coatings

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    0366755 - ÚFP 2012 RIV DE eng C - Conference Paper (international conference)
    Vilémová, M. - Siegl, J. - Matějíček, Jiří - Mušálek, Radek
    Effect of the grit blasting exposure time on the adhesion of Al2O3 and 316L coatings.
    International Thermal Spray Conference (ITSC 2011). Düsseldorf: DSV-German Welding Society, 2011, s. 1001-1006. ISBN 978-3-87155-268-7.
    [International Thermal Spray Conference 2011(ITSC2011). Hamburg (DE), 27.09.2011-29.09.2011]
    R&D Projects: GA MŠMT ME 901
    Institutional research plan: CEZ:AV0Z20430508
    Keywords : Adhesion * pull-off test * plasma sprayed coatings * failure mechanisms
    Subject RIV: JK - Corrosion ; Surface Treatment of Materials
    www.dvs-congress.de

    The effect of grit blasting exposure time on the adhesion of plasma sprayed Al2O3 and 316L stainless steel coatings was studied in the present work. The steel substrates were grit blasted prior to the coating deposition. Two sets of substrates with exposure time of 1 and 4 seconds were prepared. Both types of coatings were deposited using Water Stabilized Plasma (WSP) torch. Adhesion strength was evaluated using standardized pull-off test. The obtained results showed a slight improvement in the adhesion strength for the blasting time of 4 s. Failure processes taking place in the coatings during the pull-off tests were described based on the detailed fractographic analysis.
    Permanent Link: http://hdl.handle.net/11104/0201628

     
     
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