Original title: Short crack growth in ferritic-pearlitic-bainitc steel
Translated title: Růst krátkých trhlin ve feriticko-perliticko-bainitické oceli
Authors: Polák, Jaroslav
Document type: Papers
Conference/Event: Engineering mechanics 2009, Svratka (CZ), 2009-05-11 / 2009-05-14
Year: 2009
Language: eng
Abstract: [eng] [cze]
The initiation and the growth of short cracks were studied in ferritic-pearlitic-bainitic steel. Short cracks initiate preferably in persistent slip markings in areas of proeutectoid ferrite. The kinetics of short crack growth is characterized by exponential growth. Crack growth coefficient was found to be a function of plastic strain amplitude. The comparison of the short crack growth kinetics with Coffin-Manson law allows determining the parameters of the short crack growth law from the low cycle fatigue experiments Byla studována iniciace a růst krátkých trhlin ve ferritcko-perliticko-bainitické oceli. Kinetika růstu trhlin je charaktrizována exponenciálním růstem. Byl určen koeficient růstu trhlin v závislosti na amplitudě plastické deformace.
Keywords: crack growth; short crack; steel
Project no.: CEZ:AV0Z20410507 (CEP), GA101/07/1500 (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of Engineering Mechanics 2009, ISBN 978-80-86246-35-2

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/11104/0177708

Permalink: http://www.nusl.cz/ntk/nusl-40719


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Research > Institutes ASCR > Institute of Physics of Materials
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