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Characterization of Thermo-Mechanical Properties for Thermal Sprayed NiCoCrAlY Coatings
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SYSNO ASEP 0346633 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Characterization of Thermo-Mechanical Properties for Thermal Sprayed NiCoCrAlY Coatings Author(s) Fasth, A. (SE)
Nylén, P. (SE)
Markocsan, N. (SE)
Mušálek, Radek (UFP-V) RID, ORCIDSource Title ITSC 2010 – International Thermal Spray Conference & Exposition: Conference Proceedings. - Düsseldorf : DVS Media GmbH, 2010 - ISBN 978-3-87155-590-9 Pages s. 431-435 Number of pages 5 s. Publication form CD-ROM - CD-ROM Action ITSC 2010 – International Thermal Spray Conference & Exposition Event date 03.05.2010-05.05.2010 VEvent location Singapore Country SG - Singapore Event type WRD Language eng - English Country DE - Germany Keywords APS coatings ; HVOF and laser glazed coatings ; influence of spray parameters ; bond layer ; stiffness ; fatigue and fracture Subject RIV JI - Composite Materials R&D Projects ME 901 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z20430508 - UFP-V (2005-2011) Annotation The thermo-mechanical properties of a thermal barrier bond coat (BC) play an important role in governing the life-time of a coating system. The presented work aims to determine these properties for NiCoCrAlY coatings sprayed on Hastelloy X substrates sprayed under different process conditions. Temperature dependent Young’s modulus values are determined for both Atmospheric Plasma Sprayed (APS) and HVOF sprayed coatings using the four-point bending test. Particular attention is paid to microstructure-property relationships during heating. Young´s modulus was determined up to 950°C and evaluated for coatings loaded in both tension and compression. Results are discussed in the context of the effect of feedstock material, process conditions and microstructure characteristics. The methods and results presented are attractive, particularly for the thermal spray industry, since these properties are a prerequisite when the BC is to be considered in component design. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2011
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