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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F12%3A86084484%21RIV13-TA0-27360___
rdf:type
skos:Concept n17:Vysledek
dcterms:description
Based on the measurement of roll forces during the laboratory rolling of flat samples graded in thickness, new hot mean flow stress model of the HSLA steel of the type C-Mn-V-B was developed. It describes with a very good accuracy the mean flow stress m in the temperature range T = 850 – 1190 degree C, effective height reductions up to eh = 0.66, and strain rates in the range of ė = 8 – 103 s-1. The newly proposed model solves by phenomenological means a frequent problem with heteroscedasticity of relative deviations between the calculated and experimental values of deformation resistance in the case of the temperature effect. Mean flow stress values of steel C-Mn-V-B were compared with the formerly obtained m values for steels of type C-Mn as well as C-Mn-Nb-V. It was proved that HSLA steel with V and B displayed relatively very low deformation resistance and a minimum strain sensitivity at hot forming. Based on the measurement of roll forces during the laboratory rolling of flat samples graded in thickness, new hot mean flow stress model of the HSLA steel of the type C-Mn-V-B was developed. It describes with a very good accuracy the mean flow stress m in the temperature range T = 850 – 1190 degree C, effective height reductions up to eh = 0.66, and strain rates in the range of ė = 8 – 103 s-1. The newly proposed model solves by phenomenological means a frequent problem with heteroscedasticity of relative deviations between the calculated and experimental values of deformation resistance in the case of the temperature effect. Mean flow stress values of steel C-Mn-V-B were compared with the formerly obtained m values for steels of type C-Mn as well as C-Mn-Nb-V. It was proved that HSLA steel with V and B displayed relatively very low deformation resistance and a minimum strain sensitivity at hot forming.
dcterms:title
Phenomenological model of hot deformation resistance of the C-Mn-V-B-type HSLA steel Phenomenological model of hot deformation resistance of the C-Mn-V-B-type HSLA steel
skos:prefLabel
Phenomenological model of hot deformation resistance of the C-Mn-V-B-type HSLA steel Phenomenological model of hot deformation resistance of the C-Mn-V-B-type HSLA steel
skos:notation
RIV/61989100:27360/12:86084484!RIV13-TA0-27360___
n17:predkladatel
n18:orjk%3A27360
n4:aktivita
n15:P
n4:aktivity
P(ED0040/01/01), P(TA01010838)
n4:dodaniDat
n7:2013
n4:domaciTvurceVysledku
n6:3752518 n6:8067465 n6:3111636 n6:8086702
n4:druhVysledku
n11:D
n4:duvernostUdaju
n21:S
n4:entitaPredkladatele
n19:predkladatel
n4:idSjednocenehoVysledku
158490
n4:idVysledku
RIV/61989100:27360/12:86084484
n4:jazykVysledku
n10:eng
n4:klicovaSlova
laboratory rolling; hot mean flow stress model; HSLA steel
n4:klicoveSlovo
n5:laboratory%20rolling n5:HSLA%20steel n5:hot%20mean%20flow%20stress%20model
n4:kontrolniKodProRIV
[4C0802E8577D]
n4:mistoKonaniAkce
Brno
n4:mistoVydani
Ostrava
n4:nazevZdroje
METAL 2012 : 21st International Conference on Metallurgy and Materials : conference proceedings
n4:obor
n12:JG
n4:pocetDomacichTvurcuVysledku
4
n4:pocetTvurcuVysledku
6
n4:projekt
n14:ED0040%2F01%2F01 n14:TA01010838
n4:rokUplatneniVysledku
n7:2012
n4:tvurceVysledku
Vašek, Zdeněk Pachlopník, Radim Schindler, Ivo Plura, Jiří Kawulok, Petr Rusz, Stanislav
n4:typAkce
n16:WRD
n4:zahajeniAkce
2012-05-23+02:00
s:numberOfPages
6
n3:hasPublisher
Tanger s.r.o.
n22:isbn
978-80-87294-31-4
n20:organizacniJednotka
27360