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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F13%3A86088480%21RIV14-MSM-27360___
rdf:type
n15:Vysledek skos:Concept
dcterms:description
Kinetics of the dynamic, as well as postdynamic recrystallization of the wrought magnesium alloy AZ31, was ascertained. Continuous compression tests associated with the study of dynamic recrystallization were realized at temperatures from 523 to 723 K and at the strain rates from 0.001 to 10 s-1. The activation energy in hot forming was determined as Q = 158 kJ/mol for stress-strain curves of conventional shape, or Q = 146 kJ/mol for stress-strain curves with the concave initial phase affected by twinning. If the Zener-Hollomon parameter Z>9.131012 s21 the deformation necessary for the initiation of dynamic recrystallization is almost independent on the forming parameters. Using the results of the stress relaxation tests, equations describing the kinetics of metadynamic recrystallization and the grain size originated in such a way were developed and the effect of individual variables was evaluated. Kinetics of the dynamic, as well as postdynamic recrystallization of the wrought magnesium alloy AZ31, was ascertained. Continuous compression tests associated with the study of dynamic recrystallization were realized at temperatures from 523 to 723 K and at the strain rates from 0.001 to 10 s-1. The activation energy in hot forming was determined as Q = 158 kJ/mol for stress-strain curves of conventional shape, or Q = 146 kJ/mol for stress-strain curves with the concave initial phase affected by twinning. If the Zener-Hollomon parameter Z>9.131012 s21 the deformation necessary for the initiation of dynamic recrystallization is almost independent on the forming parameters. Using the results of the stress relaxation tests, equations describing the kinetics of metadynamic recrystallization and the grain size originated in such a way were developed and the effect of individual variables was evaluated.
dcterms:title
Activation energy in hot forming and recrystallization models for magnesium alloy AZ31 Activation energy in hot forming and recrystallization models for magnesium alloy AZ31
skos:prefLabel
Activation energy in hot forming and recrystallization models for magnesium alloy AZ31 Activation energy in hot forming and recrystallization models for magnesium alloy AZ31
skos:notation
RIV/61989100:27360/13:86088480!RIV14-MSM-27360___
n15:predkladatel
n18:orjk%3A27360
n3:aktivita
n9:P
n3:aktivity
P(ED0040/01/01)
n3:cisloPeriodika
3
n3:dodaniDat
n6:2014
n3:domaciTvurceVysledku
n16:3111636 n16:8067465
n3:druhVysledku
n11:J
n3:duvernostUdaju
n5:S
n3:entitaPredkladatele
n20:predkladatel
n3:idSjednocenehoVysledku
59386
n3:idVysledku
RIV/61989100:27360/13:86088480
n3:jazykVysledku
n10:eng
n3:klicovaSlova
postdynamic softening.; magnesium alloy AZ31; grain size; dynamic recrystallization; Activation energy
n3:klicoveSlovo
n17:postdynamic%20softening. n17:Activation%20energy n17:magnesium%20alloy%20AZ31 n17:dynamic%20recrystallization n17:grain%20size
n3:kodStatuVydavatele
US - Spojené státy americké
n3:kontrolniKodProRIV
[3215ED67EA78]
n3:nazevZdroje
Journal of Materials Engineering and Performance
n3:obor
n12:JG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:projekt
n19:ED0040%2F01%2F01
n3:rokUplatneniVysledku
n6:2013
n3:svazekPeriodika
22
n3:tvurceVysledku
Hadasik, Eugeniusz Schindler, Ivo Kawulok, Petr Kuc, Dariusz
n3:wos
000314899800032
s:issn
1059-9495
s:numberOfPages
8
n14:doi
10.1007/s11665-012-0327-8
n13:organizacniJednotka
27360