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Residual Stresses and Young's Moduli of Plasma Sprayed W+Cu Composites and FGMs Determined by In Situ Curvature Method
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SYSNO ASEP 0428019 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Residual Stresses and Young's Moduli of Plasma Sprayed W+Cu Composites and FGMs Determined by In Situ Curvature Method Author(s) Matějíček, Jiří (UFP-V) RID, ORCID
Mušálek, Radek (UFP-V) RID, ORCID
Chráska, Pavel (UFP-V) RIDSource Title Key Engineering Materials, 606 - V. Coatings and Layers. - Zurich : Trans Tech Publications Ltd, 2014 / Haušíld P. ; Materna A. ; Vilémová M. - ISSN 1662-9795 Pages s. 151-154 Number of pages 4 s. Publication form Print - P Action International Conference on Local Mechanical Properties, LMP 2013/10./ Event date 06.11.2013-08.11.2013 VEvent location Kutná Hora Country CZ - Czech Republic Event type WRD Language eng - English Country CH - Switzerland Keywords plasma spraying ; FGM ; residual stress ; Young’s modulus ; curvature method Subject RIV JI - Composite Materials R&D Projects GAP108/12/1872 GA ČR - Czech Science Foundation (CSF) ME 901 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UFP-V - RVO:61389021 DOI 10.4028/www.scientific.net/KEM.606.151 Annotation In this work, application of the in-situ curvature method on plasma sprayed composite and graded coatings is presented. First, uniform composites of different W/Cu ratio, were sprayed by water stabilized plasma. By continuous monitoring of the curvature of a flat specimen during spraying, the stress evolution throughout the entire history of coating formation was traced. By a simultaneous monitoring of curvature and temperature during post-deposition cooling, Young’s moduli of the coatings were determined. Second, a 5-layer stepwise functionally graded material (FGM) was sprayed. With the knowledge of each layer’s properties, the complex evolution of deposition, thermal and residual stresses in the FGM could be determined. The ability to determine the stresses and mechanical properties with a spatial resolution comparable to the thickness of one spray pass is demonstrated. Workplace Institute of Plasma Physics Contact Vladimíra Kebza, kebza@ipp.cas.cz, Tel.: 266 052 975 Year of Publishing 2015
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