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Statements

Subject Item
n2:RIV%2F61989100%3A27360%2F09%3A00022050%21RIV10-MSM-27360___
rdf:type
skos:Concept n8:Vysledek
dcterms:description
Compression tests of specimens from the aluminium alloy Mg-3Al-1Zn (AZ31) at temperature T = 250 to 450 °C and strain rate gama=0.01 to 10 s-1 were performed. From the peaks of the obtained stress-strain curves, the values of the activation energy Q and other material constants, usable for the description of the maximum stress and the kinetics of the dynamic recrystallization in dependence on the Zener-Hollomon parameter Z were expressed numerically. The deformation behaviour and especially the shape of the stress-strain curves differ significantly at the low and high values of the parameter Z. The boundary between these areas was determined mathematically as Z = 2.9E+13 s-1. While the specified activation energy Q was for these both areas nearly identical (157 or 155 kJ/mol, respectively), the mathematical description of the coordinates of the stress peak is markedly different. The changes in the deformation behaviour consist in a strong effect of twinning in the initial stages of forming in the case Compression tests of specimens from the aluminium alloy Mg-3Al-1Zn (AZ31) at temperature T = 250 to 450 °C and strain rate gama=0.01 to 10 s-1 were performed. From the peaks of the obtained stress-strain curves, the values of the activation energy Q and other material constants, usable for the description of the maximum stress and the kinetics of the dynamic recrystallization in dependence on the Zener-Hollomon parameter Z were expressed numerically. The deformation behaviour and especially the shape of the stress-strain curves differ significantly at the low and high values of the parameter Z. The boundary between these areas was determined mathematically as Z = 2.9E+13 s-1. While the specified activation energy Q was for these both areas nearly identical (157 or 155 kJ/mol, respectively), the mathematical description of the coordinates of the stress peak is markedly different. The changes in the deformation behaviour consist in a strong effect of twinning in the initial stages of forming in the case
dcterms:title
Activation energy of the aluminium alloy Mg-3Al-1Zn in hot forming Activation energy of the aluminium alloy Mg-3Al-1Zn in hot forming
skos:prefLabel
Activation energy of the aluminium alloy Mg-3Al-1Zn in hot forming Activation energy of the aluminium alloy Mg-3Al-1Zn in hot forming
skos:notation
RIV/61989100:27360/09:00022050!RIV10-MSM-27360___
n3:aktivita
n15:Z
n3:aktivity
Z(MSM6198910015)
n3:cisloPeriodika
4
n3:dodaniDat
n7:2010
n3:domaciTvurceVysledku
n17:8067465 n17:8298483
n3:druhVysledku
n16:J
n3:duvernostUdaju
n14:S
n3:entitaPredkladatele
n9:predkladatel
n3:idSjednocenehoVysledku
301832
n3:idVysledku
RIV/61989100:27360/09:00022050
n3:jazykVysledku
n18:eng
n3:klicovaSlova
Activation energy; magnesium alloy; AZ31
n3:klicoveSlovo
n4:Activation%20energy n4:magnesium%20alloy n4:AZ31
n3:kodStatuVydavatele
CZ - Česká republika
n3:kontrolniKodProRIV
[3F75C7971DFC]
n3:nazevZdroje
Hutnické listy
n3:obor
n13:JG
n3:pocetDomacichTvurcuVysledku
2
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n7:2009
n3:svazekPeriodika
62
n3:tvurceVysledku
Schindler, Ivo Legerski, Miroslav Hadasik, Eugeniusz Kuc, Dariusz
n3:zamer
n10:MSM6198910015
s:issn
0018-8069
s:numberOfPages
4
n12:organizacniJednotka
27360