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Fatigue properties and crack growth in Eurofer steel
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SYSNO ASEP 0332819 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Fatigue properties and crack growth in Eurofer steel Title Únavové vlastnosti a růst trhiln v oceli Eurofer 97 Author(s) Kuběna, Ivo (UFM-A) RID, ORCID
Kruml, Tomáš (UFM-A) RID, ORCIDNumber of authors 2 Source Title Materiálové inžinierstvo - Materials Engineering - ISSN 1335-0803
Roč. 16, 3a (2009), s. 32-36Number of pages 6 s. Language eng - English Country SK - Slovakia Keywords low cycle fatigue ; short crack propagation ; fatigue softening Subject RIV JL - Materials Fatigue, Friction Mechanics R&D Projects GA106/09/1954 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z20410507 - UFM-A (2005-2011) Annotation Cyclic plastic response of the Eurofer reduced activation ferritic-martensitic steel at room temperature was studied. Strain amplitude was kept constant during cycling. The softening curves in two representation were obtained. The fatigue life curve in NF = f(ea) representation and the cyclic stress-strain curve were determined. The main part of the study was focused on surface relief observation: determination of crack nucleation sites and kinetics of crack growth. The crack growth coefficient kg was measured, allowing the fatigue life predictions based on the kinetics of short crack growth. The fracture surfaces were observed using scanning electron microscopy (SEM). Nucleation sites, striation and other typical fatigue features were detected. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2010
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