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Fatigue cracks in Eurofer 97 steel: Part I. Nucleation and small crack growth kinetics

SYSNO ASEP	0359062
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Fatigue cracks in Eurofer 97 steel: Part I. Nucleation and small crack growth kinetics
Author(s)	Kruml, Tomáš (UFM-A)_{RID, ORCID} Polák, Jaroslav (UFM-A)_{RID, ORCID}
Number of authors	2
Source Title	Journal of Nuclear Materials. - : Elsevier - ISSN 0022-3115 Roč. 412, 1 (2011), s. 2-6
Number of pages	5 s.
Language	eng - English
Country	NL - Netherlands
Keywords	ferritic-martensitic steel ; low cycle fatigue ; small crack growth ; fatigue life prediction
Subject RIV	JL - Materials Fatigue, Friction Mechanics
R&D Projects	GA106/09/1954 GA ČR - Czech Science Foundation (CSF)
	GA101/09/0867 GA ČR - Czech Science Foundation (CSF)
CEZ	AV0Z20410507 - UFM-A (2005-2011)
UT WOS	000291171400001
DOI	10.1016/j.jnucmat.2011.01.010
Annotation	Fatigue crack nucleation and growth were studied in the Eurofer 97 ferritic–martensitic steel at room temperature. Cylindrical specimens with a shallow notch and no artificial crack starters were used. The constant strain amplitude cycling was adopted. First fatigue cracks nucleate at about 5% of the fatigue life along the surface slip bands. If a crack overcome the barrier of the first high angle boundary, its growth is regular and an exponential growth law is observed. This law may be used for the residual fatigue life prediction based on the small crack growth kinetics.
Workplace	Institute of Physics of Materials
Contact	Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485
Year of Publishing	2012

Number of the records: 1