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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F10%3A10057489%21RIV11-MSM-11320___
rdf:type
n7:Vysledek skos:Concept
dcterms: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.
dcterms: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
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
skos:notation
RIV/00216208:11320/10:10057489!RIV11-MSM-11320___
n4:aktivita
n12:Z n12:S n12:P
n4:aktivity
P(KAN400720701), P(ME08022), S, Z(MSM0021620834)
n4:cisloPeriodika
5
n4:dodaniDat
n9:2011
n4:domaciTvurceVysledku
n8:2475472 n8:6715869 n8:2407396 n8:9949097 n8:5345553
n4:druhVysledku
n15:J
n4:duvernostUdaju
n11:S
n4:entitaPredkladatele
n13:predkladatel
n4:idSjednocenehoVysledku
271285
n4:idVysledku
RIV/00216208:11320/10:10057489
n4:jazykVysledku
n14:eng
n4:klicovaSlova
Methods; Different; Studied; Samples; Cu-Zr; Pressed; Angular; Equal-Channel; Microstructure
n4:klicoveSlovo
n5:Microstructure n5:Samples n5:Cu-Zr n5:Methods n5:Equal-Channel n5:Studied n5:Pressed n5:Different n5:Angular
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[0F3A55659C85]
n4:nazevZdroje
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
n4:obor
n18:BM
n4:pocetDomacichTvurcuVysledku
5
n4:pocetTvurcuVysledku
6
n4:projekt
n19:ME08022 n19:KAN400720701
n4:rokUplatneniVysledku
n9:2010
n4:svazekPeriodika
41A
n4:tvurceVysledku
Dopita, Milan Matěj, Zdeněk Janeček, Miloš Kužel, Radomír Srba, Ondřej Čížek, Jakub
n4:wos
000275974800016
n4:zamer
n17:MSM0021620834
s:issn
1073-5623
s:numberOfPages
17
n16:organizacniJednotka
11320