About: Complex flow stress model for a magnesium alloy AZ31 at hot forming

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Compression tests of magnesium alloy Mg-3Al-1Zn (AZ31) at different temperatures and strain rate were made on plastometer Gleeble 3800. Deformation behaviour and particularly shape of stress-strain curves of the alloy AZ31 differ significantly at low and high values of Zener-Hollomon parameter Z. While the calculated activation energy Q was for both these areas practically identical (157 or 155 kJ mol-1), mathematical description of coordinates of the peak stress differs considerably. Regression and statistical analysis of experimental data have confirmed unequivocally, that it was impossible to describe by a uniform equation the whole set of data (i.e. traditional stress-strain curves, as well as those with atypical initial stage, given by the massive twinning). That’s why two mathematical models were developed enabling prediction of the flow stress of investigated magnesium alloy in dependence on temperature, strain and strain rate, with inclusion of the influence of dynamic recrystallisation Compression tests of magnesium alloy Mg-3Al-1Zn (AZ31) at different temperatures and strain rate were made on plastometer Gleeble 3800. Deformation behaviour and particularly shape of stress-strain curves of the alloy AZ31 differ significantly at low and high values of Zener-Hollomon parameter Z. While the calculated activation energy Q was for both these areas practically identical (157 or 155 kJ mol-1), mathematical description of coordinates of the peak stress differs considerably. Regression and statistical analysis of experimental data have confirmed unequivocally, that it was impossible to describe by a uniform equation the whole set of data (i.e. traditional stress-strain curves, as well as those with atypical initial stage, given by the massive twinning). That’s why two mathematical models were developed enabling prediction of the flow stress of investigated magnesium alloy in dependence on temperature, strain and strain rate, with inclusion of the influence of dynamic recrystallisation (en)
Title	Complex flow stress model for a magnesium alloy AZ31 at hot forming Complex flow stress model for a magnesium alloy AZ31 at hot forming (en)
skos:prefLabel	Complex flow stress model for a magnesium alloy AZ31 at hot forming Complex flow stress model for a magnesium alloy AZ31 at hot forming (en)
skos:notation	RIV/61989100:27360/11:86081437!RIV12-MSM-27360___
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(MSM6198910015)
http://linked.open...iv/cisloPeriodika	1-2
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Kawulok, Petr Plura, Jiří Schindler, Ivo Rusz, Stanislav Legerski, Miroslav Kulveitová, Hana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Vysoká škola báňská - Technická univerzita Ostrava / Fakulta metalurgie a materiálového inženýrství
http://linked.open...dnocenehoVysledku	191394
http://linked.open...ai/riv/idVysledku	RIV/61989100:27360/11:86081437
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hot flow stress model; activation energy; stress-strain curves; magnesium alloy AZ31 (en)
http://linked.open.../riv/klicoveSlovo	activation energy hot flow stress model magnesium alloy AZ31 stress-strain curves
http://linked.open...odStatuVydavatele	IL - Stát Izrael
http://linked.open...ontrolniKodProRIV	[E5F34FAC3514]
http://linked.open...i/riv/nazevZdroje	High temperature materials and processes
http://linked.open...in/vavai/riv/obor	JG
http://linked.open...ichTvurcuVysledku	6 (xsd:int)
http://linked.open...cetTvurcuVysledku	9 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	30
http://linked.open...iv/tvurceVysledku	Hadasik, Eugeniusz Kawulok, Petr Kuc, Dariusz Kulveitová, Hana Legerski, Miroslav Niewielski, Grzegorz Plura, Jiří Rusz, Stanislav Schindler, Ivo
http://linked.open...ain/vavai/riv/wos	000294207300009
http://linked.open...n/vavai/riv/zamer	Structural potentiality and properties of intensively formed materials
issn	0334-6455
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1515/HTMP.2011.008
http://localhost/t...ganizacniJednotka	27360

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