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Creep Behaviour of Advanced Power Plant Steels after Long-Term Isothermal Ageing Steels
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SYSNO ASEP 0359240 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Creep Behaviour of Advanced Power Plant Steels after Long-Term Isothermal Ageing Steels Author(s) Sklenička, Václav (UFM-A) RID, ORCID
Kuchařová, Květa (UFM-A) RID, ORCID
Svoboda, Milan (UFM-A) RID, ORCID
Kroupa, Aleš (UFM-A) RID, ORCIDSource Title Advances in Materials Technology for Fossil Power Plants. - Materials Park, Ohio : ASM International, 2011 / Gandy D. ; Shingledecker J. ; Viswanathan R. - ISBN 978-1-61503-724-7 Pages s. 516-529 Number of pages 14 s. Action International Conference on Advances in Materials Technology for Fossil Power Plants /6./ Event date 31.08.2011-03.09.2011 VEvent location Santa Fe, New Mexiko Country US - United States Event type WRD Language eng - English Country US - United States Keywords creep ; microstructural examination ; thermodynamic calculation Subject RIV JJ - Other Materials R&D Projects 2A-1TP1/057 GA MPO - Ministry of Industry and Trade (MPO) CEZ AV0Z20410507 - UFM-A (2005-2011) UT WOS 000394062500037 Annotation In this paper we tried to model the creep-strength degradation of selected advanced creep resistant steels which occurs under operating conditions. In order to accelerate some microstructure changes and thus to simulate degradation processes in long-term service, isothermal ageing at 650°C for 10 000 h was applied to P91, P92 and P23 steels in their as-received states. The tensile creep tests were performed at temperature 600°C in argon atmosphere on all steels both in the as-received state and after isothermal ageing, in an effort to obtain a more complete description of the role of microstructure stability in high temperature creep of these steels. Creep tests were followed by microstructure investigations by means of transmission and scanning electron microscopy and by the thermodynamic calculations. The applicability of the creep tests was verified by the theoretical modelling of the phase equilibrium at different temperatures. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2012
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