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Statements

Subject Item
n2:RIV%2F61389005%3A_____%2F06%3A00048304%21RIV07-AV0-61389005
rdf:type
n5:Vysledek skos:Concept
dcterms:description
Experimentální studie srovnává zbytková napětí na povrchu a uvnitř válcovaných perlitických plechů, popisuje anizotropii těchto napětí a jejich redistribuci mezi feritickou matrici a cementit. This paper reports about a combined neutron and X-ray diffraction study on the residual stresses in the ferrite matrix of cold-rolled fully pearlitic steel sheet. Neutron diffraction revealed compressive residual phase microstresses of about - 500 MPa in rolling direction. However, even in normal direction there are significant tensile residual microstresses, indicating that the morphology of the lamellar microstructure cannot be properly described as a %22sandwich structure%22. Neutron diffraction was also used during an in-situ tensile test to estimate the microstress level in the cementite phase. The combination of neutron and X-ray diffraction allows to separate, near the surface, the residual phase microstresses from the macrostresses. The latter are also important in rolling direction and imply some risk of undesirable shape changes after forming operations. This paper reports about a combined neutron and X-ray diffraction study on the residual stresses in the ferrite matrix of cold-rolled fully pearlitic steel sheet. Neutron diffraction revealed compressive residual phase microstresses of about - 500 MPa in rolling direction. However, even in normal direction there are significant tensile residual microstresses, indicating that the morphology of the lamellar microstructure cannot be properly described as a %22sandwich structure%22. Neutron diffraction was also used during an in-situ tensile test to estimate the microstress level in the cementite phase. The combination of neutron and X-ray diffraction allows to separate, near the surface, the residual phase microstresses from the macrostresses. The latter are also important in rolling direction and imply some risk of undesirable shape changes after forming operations.
dcterms:title
Neutronová a rentgenová difrakční analýza zbytkových napětí za studena válcovaných perlitických plechů Neutron and X-ray diffraction analysis of residual stresses in cold-rolled pearlitic steel sheet Neutron and X-ray diffraction analysis of residual stresses in cold-rolled pearlitic steel sheet
skos:prefLabel
Neutronová a rentgenová difrakční analýza zbytkových napětí za studena válcovaných perlitických plechů Neutron and X-ray diffraction analysis of residual stresses in cold-rolled pearlitic steel sheet Neutron and X-ray diffraction analysis of residual stresses in cold-rolled pearlitic steel sheet
skos:notation
RIV/61389005:_____/06:00048304!RIV07-AV0-61389005
n4:strany
375;380
n4:aktivita
n12:Z
n4:aktivity
Z(AV0Z10480505)
n4:cisloPeriodika
-
n4:dodaniDat
n15:2007
n4:domaciTvurceVysledku
n13:6994172 n13:7126441
n4:druhVysledku
n17:J
n4:duvernostUdaju
n11:S
n4:entitaPredkladatele
n10:predkladatel
n4:idSjednocenehoVysledku
488430
n4:idVysledku
RIV/61389005:_____/06:00048304
n4:jazykVysledku
n16:eng
n4:klicovaSlova
pearlitic steel sheet; cold rolling; residual stresses
n4:klicoveSlovo
n9:pearlitic%20steel%20sheet n9:cold%20rolling n9:residual%20stresses
n4:kodStatuVydavatele
CH - Švýcarská konfederace
n4:kontrolniKodProRIV
[CD189B09B637]
n4:nazevZdroje
Materials Science Forum
n4:obor
n6:BM
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
5
n4:rokUplatneniVysledku
n15:2006
n4:svazekPeriodika
524/525
n4:tvurceVysledku
Walentek, A. Lukáš, Petr Seefeldt, M. Vrána, Miroslav Van Houtte, P.
n4:zamer
n14:AV0Z10480505
s:issn
0255-5476
s:numberOfPages
5