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Original title:
Microstructural Investigation and Mechanical Testing of an Ultrafine-grained Austenitic Stainless Steel
Authors: Chlupová, Alice ; Man, Jiří ; Polák, Jaroslav ; Karjalainen, L. P.
Document type: Papers
Conference/Event: NANOCON 2013. International Conference /5./, Brno (CZ), 2013-10-16 / 2013-10-18
Year: 2013
Language: eng
Abstract: Special thermomechanical treatment based on high degree deformation followed by reversion annealing was applied to 301LN austenitic stainless steel to achieve ultrafine-grained (UFG) structure with considerably enhanced mechanical properties. Two different conditions of the thermomechanical treatment were adopted and resulting microstructures with different grain sizes were characterised by optical and high resolution scanning electron microscopy (SEM-FEG). Hardness measurements and tensile tests were performed to characterize mechanical properties. To reveal structural changes induced during thermomechanical treatment and during tensile tests a magnetic induction method was additionally applied. Experimental study validated the ability of the above special treatment to produce austenitic stainless steel with grain size about 1.4 m which exhibits tensile strength about 1000MPa while ductility remains on level about 60 %. The results obtained for both thermomechanical conditions are compared and the relationship between microstructure refinement, phase content and mechanical properties is discussed.
Keywords: austenitic steel; hardness; mechanical propeties; thermomechaical heart treatment; ultra-fine grained microstructure
Project no.: GA13-32665S (CEP)
Funding provider: GA ČR
Host item entry: NANOCON 2013 Conference Proceedings, ISBN 978-80-87294-44-4
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/11104/0225972
Permalink: http://www.nusl.cz/ntk/nusl-161480
The record appears in these collections:
Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers
Authors: Chlupová, Alice ; Man, Jiří ; Polák, Jaroslav ; Karjalainen, L. P.
Document type: Papers
Conference/Event: NANOCON 2013. International Conference /5./, Brno (CZ), 2013-10-16 / 2013-10-18
Year: 2013
Language: eng
Abstract: Special thermomechanical treatment based on high degree deformation followed by reversion annealing was applied to 301LN austenitic stainless steel to achieve ultrafine-grained (UFG) structure with considerably enhanced mechanical properties. Two different conditions of the thermomechanical treatment were adopted and resulting microstructures with different grain sizes were characterised by optical and high resolution scanning electron microscopy (SEM-FEG). Hardness measurements and tensile tests were performed to characterize mechanical properties. To reveal structural changes induced during thermomechanical treatment and during tensile tests a magnetic induction method was additionally applied. Experimental study validated the ability of the above special treatment to produce austenitic stainless steel with grain size about 1.4 m which exhibits tensile strength about 1000MPa while ductility remains on level about 60 %. The results obtained for both thermomechanical conditions are compared and the relationship between microstructure refinement, phase content and mechanical properties is discussed.
Keywords: austenitic steel; hardness; mechanical propeties; thermomechaical heart treatment; ultra-fine grained microstructure
Project no.: GA13-32665S (CEP)
Funding provider: GA ČR
Host item entry: NANOCON 2013 Conference Proceedings, ISBN 978-80-87294-44-4
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/11104/0225972
Permalink: http://www.nusl.cz/ntk/nusl-161480
The record appears in these collections:
Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers
Record created 2013-11-21, last modified 2021-11-24