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Statements

Subject Item
n2:RIV%2F26316919%3A_____%2F14%3A%230000528%21RIV15-MSM-26316919
rdf:type
n15:Vysledek skos:Concept
rdfs:seeAlso
http://www.scientific.net/AMR.939.25
dcterms:description
The paper presents results of in-situ neutron diffraction experiments aimed on monitoring the phase evolution and load distribution in transformation induced plasticity (TRIP) steel when subjected to tensile loading. Tensile deformation behaviour of two TRIP-assisted multiphase steel with slightly different microstructures resulted from different thermo-mechanical treatments applied was investigated by in-situ neutron diffraction. The steel with lower retained austenite volume fraction (f?=0.04) and higher volume fraction of needle-like bainite in the ?-matrix exhibits higher yield stress (sample B, 600MPa) but considerably lower elongation in comparison to the steel with higher austenite volume fraction (f?=0.08), granular bainite and ferrite matrix (sample A, 500 MPa). The neutron diffraction results showed that the applied tensile load is redistributed at the yielding point in a way that the retained austenite bears a significantly larger load than the ?-matrix during the TRIP steel deformation. Steel sample with higher volume fraction of retained austenite and less strong ferrite matrix proved to be a better TRIP steel with respect to strength, ductility and the side effect of the strain induced austenite-martensite transformation. The transforming retained austenite in time of loading provides potential for higher ductility of experimental TRIP steel but at the same time acts as a reinforcement phase during the further plastic deformation.TRIP steel, austenite conditioning, austenite transformation, structure, retained austenite, tensile deformation, neutron diffraction, load partitioning, mechanical properties. The paper presents results of in-situ neutron diffraction experiments aimed on monitoring the phase evolution and load distribution in transformation induced plasticity (TRIP) steel when subjected to tensile loading. Tensile deformation behaviour of two TRIP-assisted multiphase steel with slightly different microstructures resulted from different thermo-mechanical treatments applied was investigated by in-situ neutron diffraction. The steel with lower retained austenite volume fraction (f?=0.04) and higher volume fraction of needle-like bainite in the ?-matrix exhibits higher yield stress (sample B, 600MPa) but considerably lower elongation in comparison to the steel with higher austenite volume fraction (f?=0.08), granular bainite and ferrite matrix (sample A, 500 MPa). The neutron diffraction results showed that the applied tensile load is redistributed at the yielding point in a way that the retained austenite bears a significantly larger load than the ?-matrix during the TRIP steel deformation. Steel sample with higher volume fraction of retained austenite and less strong ferrite matrix proved to be a better TRIP steel with respect to strength, ductility and the side effect of the strain induced austenite-martensite transformation. The transforming retained austenite in time of loading provides potential for higher ductility of experimental TRIP steel but at the same time acts as a reinforcement phase during the further plastic deformation.TRIP steel, austenite conditioning, austenite transformation, structure, retained austenite, tensile deformation, neutron diffraction, load partitioning, mechanical properties.
dcterms:title
Deformation behaviour of TRIP steel monitored by in-situ neutron diffraction Deformation behaviour of TRIP steel monitored by in-situ neutron diffraction
skos:prefLabel
Deformation behaviour of TRIP steel monitored by in-situ neutron diffraction Deformation behaviour of TRIP steel monitored by in-situ neutron diffraction
skos:notation
RIV/26316919:_____/14:#0000528!RIV15-MSM-26316919
n4:aktivita
n16:P
n4:aktivity
P(ED2.1.00/03.0077)
n4:cisloPeriodika
05/2014
n4:dodaniDat
n6:2015
n4:domaciTvurceVysledku
n12:7277369 n12:1968521
n4:druhVysledku
n8:J
n4:duvernostUdaju
n5:S
n4:entitaPredkladatele
n10:predkladatel
n4:idSjednocenehoVysledku
10039
n4:idVysledku
RIV/26316919:_____/14:#0000528
n4:jazykVysledku
n17:eng
n4:klicovaSlova
Austenite Conditioning, Austenite Transformation, Load Partitioning, Mechanical Property, Neutron Diffraction, Retained Austenite, Structure, Tensile Deformation, TRIP Steel
n4:klicoveSlovo
n11:Mechanical%20Property n11:TRIP%20Steel n11:Retained%20Austenite n11:Austenite%20Conditioning n11:Austenite%20Transformation n11:Load%20Partitioning n11:Neutron%20Diffraction n11:Tensile%20Deformation n11:Structure
n4:kodStatuVydavatele
CH - Švýcarská konfederace
n4:kontrolniKodProRIV
[7EB98115572B]
n4:nazevZdroje
Pfafficon-Zurich
n4:obor
n19:JG
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
4
n4:projekt
n13:ED2.1.00%2F03.0077
n4:rokUplatneniVysledku
n6:2014
n4:svazekPeriodika
939
n4:tvurceVysledku
Muránsky, O. Zrník, Jozef Šittner, P. Kraus, Libor
s:issn
1662-8985
s:numberOfPages
6
n3:doi
10.4028/www.scientific.net/AMR.939.25