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Fatigue properties of Fe-Al intermetallic coatings prepared by plasma spraying
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SYSNO ASEP 0353721 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Fatigue properties of Fe-Al intermetallic coatings prepared by plasma spraying Author(s) Mušálek, Radek (UFP-V) RID, ORCID
Kovářík, O. (CZ)
Skiba, Tomáš (UFP-V)
Haušild, P. (CZ)
Karlík, M. (CZ)
Colmenares-Angulo, J. (US)Source Title Intermetallics. - : Elsevier - ISSN 0966-9795
Roč. 18, č. 7 (2010), s. 1415-1418Number of pages 5 s. Publication form web - web Action FEAL 2009 - 5th Discussion Meeting on the Development of Innovative Iron Aluminium Alloys Event date 21.09.2009-24.09.2009 VEvent location Prague Country CZ - Czech Republic Event type WRD Language eng - English Country GB - United Kingdom Keywords Iron aluminides ; Fatigue resistance and crack growth ; plasma spraying ; scanning electron microscopy Subject RIV JK - Corrosion ; Surface Treatment of Materials R&D Projects ME 901 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20430508 - UFP-V (2005-2011) UT WOS 000279568600032 DOI 10.1016/j.intermet.2010.02.001 Annotation 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. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2011
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