Original title: GRAIN REFINEMENT EFFECT ON FATIGUE PROPERTIES OF AUSTENITIC STAINLESS STEEL WITH DEFORMATION INDUCED MARTENSITE FORMATION
Authors: Chlupová, Alice ; Man, Jiří ; Polák, Jaroslav ; Škorík, Viktor ; Karjalainen, J.
Document type: Papers
Conference/Event: International Conference Nanocon 2014 /6./, Brno (CZ), 2014-11-05 / 2014-11-07
Year: 2014
Language: eng
Abstract: Fatigue properties of metastable austenitic 301LN steel with coarse and ultrafine-grained microstructures were investigated at ambient temperature and the effect of grain refinement was evaluated. Two different microstructural states of material were introduced by different annealing conditions during special thermo-mechanical treatment. Fatigue life curves were obtained and compared for both coarse-grained and ultra-fine-grained states of austenitic stainless steel. Magnetic measurements before, during and after cyclic loading were performed to reveal structural changes, i.e. formation of deformation-induced martensite. Relationship between microstructure refinement, phase composition and fatigue properties was discussed.
Keywords: 301LN austenitic stainless steel; Fatigue; grain refinement
Project no.: GA13-32665S (CEP)
Funding provider: GA ČR
Host item entry: NANOCON 2014, 6th International Conference, ISBN 978-80-87294-53-6

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/11104/0269981

Permalink: http://www.nusl.cz/ntk/nusl-263543


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