Original title: Thermo-mechanical and isothermal fatigue behavior of austenitic stainless steel AISI 316L
Authors: Škorík, Viktor ; Šulák, Ivo ; Obrtlík, Karel ; Polák, Jaroslav
Document type: Papers
Conference/Event: METAL 2015 - International Conference on Metallurgy and Materials /24./, Brno (CZ), 2015-06-03 / 2015-06-05
Year: 2015
Language: eng
Abstract: Many structural components of nuclear power plant systems are made of austenitic stainless steels. These structures undergo degradation by thermo-mechanical fatigue (TMF) caused by simultaneous cyclic straining and temperature cycling, particularly during start-up, shut-down and transient operations. The present work reports the cyclic deformation behavior and fatigue damage of austenitic stainless steel AISI 316L during TMF and isothermal fatigue (IF) testing in air. Total strain controlled in-phase TMF loading in the temperature range 200 - 600 °C and isothermal fatigue (IF) at 600 °C were performed. Hardening/softening curves, cyclic stress-strain response and fatigue life diagrams were obtained both for TMF and IF tests. Fatigue damage was documented using surface relief and fracture surface observations. Mean stress evolution and fatigue degradation data are employed to discuss the fatigue behavior of 316L steel both in TMF and IF regimes.
Keywords: AISI 316L; Fatigue life; In-phase cycling (IP); Isothermal fatigue (IF); Thermo-mechanical fatigue (TMF)
Project no.: EE2.3.30.0063, GA15-20991S (CEP), GA13-23652S (CEP)
Funding provider: GA MŠk, GA ČR, GA ČR
Host item entry: Metal 2015: 24th International Conference on Metallurgy and Materials, ISBN 978-80-87294-58-1

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0251589

Permalink: http://www.nusl.cz/ntk/nusl-200943


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Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers
 Record created 2015-11-14, last modified 2022-09-29


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