Počet záznamů: 1

Fatigue properties of Fe-Al intermetallic coatings prepared by plasma spraying

  1. 1.
    0353721 - UFP-V 2011 RIV GB eng J - Článek v odborném periodiku
    Mušálek, Radek - Kovářík, O. - Skiba, Tomáš - Haušild, P. - Karlík, M. - Colmenares-Angulo, J.
    Fatigue properties of Fe-Al intermetallic coatings prepared by plasma spraying.
    Intermetallics. Roč. 18, č. 7 (2010), s. 1415-1418 ISSN 0966-9795.
    [FEAL 2009 - 5th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys. Prague, 21.09.2009-24.09.2009]
    Grant CEP: GA MŠk ME 901
    Výzkumný záměr: CEZ:AV0Z20430508
    Klíčová slova: Iron aluminides * Fatigue resistance and crack growth * plasma spraying * scanning electron microscopy
    Kód oboru RIV: JK - Koroze a povrchové úpravy materiálů
    Impakt faktor: 2.327, rok: 2010

    In this research, FeAl based coatings were deposited on low carbon steel using two different plasma spraying technologies – gas stabilized plasma gun (GSP) and water stabilized plasma gun (WSP) – resulting in different deposition conditions. Significant changes in local chemical composition compared to feedstock material were observed due to uneven evaporation of Fe and Al from the molten material during the interaction of feedstock with plasma. Influence of coatings on substrate fatigue properties was characterized at room temperature using special testing device ‘‘SF-Test’’. Fatigue lifetimes of specimens with different coatings were compared with those of uncoated specimens. Fractographic analysis of failed specimens revealed that substrate fatigue cracks initiated at coating–substrate interface and grew by striation mechanism. The coatings failed due to intrasplat cracking and intersplat decohesion.
    Trvalý link: http://hdl.handle.net/11104/0192882