About: Influence of Heterogeneity of Microstructure on Creep Behaviour of SPD Metals

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The methods of severe plastic deformation enable a production of bulk metals with the submicrometer or even nanometer grain size. Experiments were conducted to determine an effect of equal-channel angular pressing (ECAP) on the creep behavior of pure metal. The ECAP deformation was performed at room temperature by route Bc. Constant load creep tests in tension were conducted at 373 K under different stresses. The values of the stress exponent n of the minimum creep rate for ultrafine-grained material were determined. Microstructure of samples was characterized by scanning electron microscope equipped with the electron backscatter diffraction unit. Heterogeneity of microstructure was evaluated by coefficient of variation CVa. It was found that the fracture behavior in UFG materials is influenced by GBS, formation of mesoscopic shear bands and cavitation. The methods of severe plastic deformation enable a production of bulk metals with the submicrometer or even nanometer grain size. Experiments were conducted to determine an effect of equal-channel angular pressing (ECAP) on the creep behavior of pure metal. The ECAP deformation was performed at room temperature by route Bc. Constant load creep tests in tension were conducted at 373 K under different stresses. The values of the stress exponent n of the minimum creep rate for ultrafine-grained material were determined. Microstructure of samples was characterized by scanning electron microscope equipped with the electron backscatter diffraction unit. Heterogeneity of microstructure was evaluated by coefficient of variation CVa. It was found that the fracture behavior in UFG materials is influenced by GBS, formation of mesoscopic shear bands and cavitation. (en)
Title	Influence of Heterogeneity of Microstructure on Creep Behaviour of SPD Metals Influence of Heterogeneity of Microstructure on Creep Behaviour of SPD Metals (en)
skos:prefLabel	Influence of Heterogeneity of Microstructure on Creep Behaviour of SPD Metals Influence of Heterogeneity of Microstructure on Creep Behaviour of SPD Metals (en)
skos:notation	RIV/68081723:_____/12:00385912!RIV13-GA0-68081723
http://linked.open...avai/predkladatel	Ústav fyziky materiálů AVČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GPP108/10/P469), Z(AV0Z20410507)
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Kvapilová, Marie Svoboda, Milan Sklenička, Václav Dvořák, Jiří Král, Petr
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	141437
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/12:00385912
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Ultrafine-grained microstructure; creep behaviour; nanoindentation (en)
http://linked.open.../riv/klicoveSlovo	creep behaviour nanoindentation Ultrafine-grained microstructure
http://linked.open...ontrolniKodProRIV	[0D3E8F25CA2E]
http://linked.open...v/mistoKonaniAkce	Brno
http://linked.open...i/riv/mistoVydani	Ostrava
http://linked.open...i/riv/nazevZdroje	NANOCON 2012 - Conference Proceedings
http://linked.open...in/vavai/riv/obor	JJ
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Influence of initial crystallographic orientation on creep behaviour of SPD materials
http://linked.open...UplatneniVysledku	2012
http://linked.open...iv/tvurceVysledku	Dvořák, Jiří Král, Petr Kvapilová, Marie Sklenička, Václav Svoboda, Milan
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2012-10-23 (xsd:date)
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
number of pages	6 (xsd:int)
http://purl.org/ne...btex#hasPublisher	Tanger s.r.o.
https://schema.org/isbn	978-80-87294-32-1
is http://linked.open...avai/riv/vysledek of	Influence of Heterogeneity of Microstructure on Creep Behaviour of SPD Metals

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