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Plasma spraying of Fe-Cr-Al alloy powder
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SYSNO ASEP 0309150 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Plasma spraying of Fe-Cr-Al alloy powder Title Plazmové stříkání prášku slitiny Fe-Cr-Al Author(s) Voleník, Karel (UFP-V)
Leitner, J. (CZ)
Kolman, Blahoslav Jan (UFP-V)
Písačka, Jan (UFP-V) RID
Schneeweiss, Oldřich (UFM-A) RID, ORCIDSource Title Kovové materiály. - : Ústav fyziky materiálu AV ČR, v. v. i. - : Ústav materiálov a mechaniky strojov SAV. - : Ústav materiálového výskumu SAV. - : Strojnícka fakulta STU - ISSN 0023-432X
Roč. 46, č. 1 (2008), s. 17-25Number of pages 9 s. Language eng - English Country SK - Slovakia Keywords Fe-Cr-Al alloy powder ; plasma spraying ; oxidation ; vaporization ; composition changes Subject RIV JK - Corrosion ; Surface Treatment of Materials R&D Projects IAA1041404 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) CEZ AV0Z20430508 - UFP-V (2005-2011) AV0Z20410507 - UFM-A (2005-2011) UT WOS 000255514400003 Annotation Fe-Cr-Al alloy powder was plasma sprayed using a water stabilized plasma gun. The alloy simulated the commercial KANTHAL D. To obtain its composition in a plasma deposit, the initial powder composition must have been somewhat different to cope with the changes due to selective vaporization and selective oxidation during spraying. For the changes at the in-flight stage of spraying, mainly selective Al vaporization is responsible. After particle impact and solidification, i.e. during formation and cooling of a coating, vaporization is interrupted and the composition changes due to oxidation are less significant. During plasma spraying, the alloy exhibits better oxidation resistance than a number of materials. The protective mechanism is virtually the same as in solid Fe-Cr-Al alloys, nevertheless the protective Al2O3 layer is liquid under the reaction conditions. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2009
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