About: Microstructure of Equal-Channel Angular Pressed Cu and Cu-Zr Samples Studied by Different Methods

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Polycrystalline samples of technical-purity Cu (99.95 wt pct) and Cu with 0.18 % wt pct Zr have been processed at room temperature by equal-channel angular pressing (ECAP). The microstructure evolution and its fragmentation after ECAP were investigated by transmission electron microscopy (TEM), electron backscattered diffraction (EBSD), positron annihilation spectroscopy (PAS), and by X-ray diffraction (XRD) line-profile analysis. The first two techniques revealed an increase in the fraction of high-angle grain boundaries (HAGBs), with increasing strain reaching the value of 90 pct after eight ECAP passes. The increase was more pronounced for pure Cu samples. The following two kinds of defects were identified in ECAP specimens by PAS: (1) dislocations that represent the dominant kind of defects and (2) small vacancy clusters (so-called microvoids). A detailed XRD line-profile analysis was performed by the analysis of individual peaks and by total profile fitting. Polycrystalline samples of technical-purity Cu (99.95 wt pct) and Cu with 0.18 % wt pct Zr have been processed at room temperature by equal-channel angular pressing (ECAP). The microstructure evolution and its fragmentation after ECAP were investigated by transmission electron microscopy (TEM), electron backscattered diffraction (EBSD), positron annihilation spectroscopy (PAS), and by X-ray diffraction (XRD) line-profile analysis. The first two techniques revealed an increase in the fraction of high-angle grain boundaries (HAGBs), with increasing strain reaching the value of 90 pct after eight ECAP passes. The increase was more pronounced for pure Cu samples. The following two kinds of defects were identified in ECAP specimens by PAS: (1) dislocations that represent the dominant kind of defects and (2) small vacancy clusters (so-called microvoids). A detailed XRD line-profile analysis was performed by the analysis of individual peaks and by total profile fitting. (en)
Title	Microstructure of Equal-Channel Angular Pressed Cu and Cu-Zr Samples Studied by Different Methods Microstructure of Equal-Channel Angular Pressed Cu and Cu-Zr Samples Studied by Different Methods (en)
skos:prefLabel	Microstructure of Equal-Channel Angular Pressed Cu and Cu-Zr Samples Studied by Different Methods Microstructure of Equal-Channel Angular Pressed Cu and Cu-Zr Samples Studied by Different Methods (en)
skos:notation	RIV/00216208:11320/10:10057489!RIV11-MSM-11320___
http://linked.open...avai/riv/aktivita	P S Z
http://linked.open...avai/riv/aktivity	P(KAN400720701), P(ME08022), S, Z(MSM0021620834)
http://linked.open...iv/cisloPeriodika	5
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Janeček, Miloš Matěj, Zdeněk Kužel, Radomír Čížek, Jakub Srba, Ondřej
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	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	271285
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/10:10057489
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Methods; Different; Studied; Samples; Cu-Zr; Pressed; Angular; Equal-Channel; Microstructure (en)
http://linked.open.../riv/klicoveSlovo	Methods Microstructure Different Studied Cu-Zr Equal-Channel Pressed Samples Angular
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[0F3A55659C85]
http://linked.open...i/riv/nazevZdroje	Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Hierarchic nanosystems for microelektronics Structure stability of severely plastically deformed copper alloys
http://linked.open...UplatneniVysledku	2010
http://linked.open...v/svazekPeriodika	41A
http://linked.open...iv/tvurceVysledku	Janeček, Miloš Matěj, Zdeněk Čížek, Jakub Kužel, Radomír Srba, Ondřej Dopita, Milan
http://linked.open...ain/vavai/riv/wos	000275974800016
http://linked.open...n/vavai/riv/zamer	Condensed Matter Physics – New Materials and Technologies
issn	1073-5623
number of pages	17 (xsd:int)
http://localhost/t...ganizacniJednotka	11320

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