Publication detail
THERMO-MECHANICAL AND ISOTHERMAL FATIGUE BEHAVIOR OF AUSTENITIC STAINLESS STEEL AISI 316L.
ŠKORÍK, V. ŠULÁK, I. OBRTLÍK, K. POLÁK, J.
English title
THERMO-MECHANICAL AND ISOTHERMAL FATIGUE BEHAVIOR OF AUSTENITIC STAINLESS STEEL AISI 316L.
Type
conference paper
Language
en
Original 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.
English 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 in English
Thermo-mechanical fatigue (TMF), Isothermal fatigue (IF), In-phase cycling (IP), AISI 316L, Fatigue life
RIV year
2015
Released
03.06.2015
Publisher
TANGER Ostrava, s.r.o.
Location
Ostrava
ISBN
978-80-87294-58-1
Book
Proceedings of METAL 2015
Edition number
1
Pages from–to
851–856
Pages count
6
BIBTEX
@inproceedings{BUT125703,
author="Viktor {Škorík} and Ivo {Šulák} and Karel {Obrtlík} and Jaroslav {Polák},
title="THERMO-MECHANICAL AND ISOTHERMAL FATIGUE BEHAVIOR OF AUSTENITIC STAINLESS STEEL AISI 316L.",
booktitle="Proceedings of METAL 2015",
year="2015",
month="June",
pages="851--856",
publisher="TANGER Ostrava, s.r.o.",
address="Ostrava",
isbn="978-80-87294-58-1"
}