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Statements

Subject Item
n2:RIV%2F68081723%3A_____%2F14%3A00435498%21RIV15-GA0-68081723
rdf:type
n16:Vysledek skos:Concept
dcterms:description
The creep behavior of pure, initially coarse-grained Cu of 99.99% purity was investigated at a temperature of 473 K in tension and compression in dependence on predeformation by ECAP (route B-C) at ambient temperature. Static recrystallization during heating to test temperature generates a microcrystalline structure; its homogeneity increases with increasing ECAP-predeformation. The high-angle boundaries are sufficiently closely spaced to exert a significant influence on work hardening and quasi-stationary deformation where generation and loss of free dislocations are at approximate balance. This influence is quantitatively interpreted in terms of control of deformation resistance shifting from low- to high-angle boundaries as predeformation increases and creep stress decreases. The microcrystalline structure created by the thermomechanical treatment consisting of ECAP and static recrystallization leads to favorable combination of relatively high creep resistance and high ductility at 473 K with fracture strains in the order of 0.5. The creep behavior of pure, initially coarse-grained Cu of 99.99% purity was investigated at a temperature of 473 K in tension and compression in dependence on predeformation by ECAP (route B-C) at ambient temperature. Static recrystallization during heating to test temperature generates a microcrystalline structure; its homogeneity increases with increasing ECAP-predeformation. The high-angle boundaries are sufficiently closely spaced to exert a significant influence on work hardening and quasi-stationary deformation where generation and loss of free dislocations are at approximate balance. This influence is quantitatively interpreted in terms of control of deformation resistance shifting from low- to high-angle boundaries as predeformation increases and creep stress decreases. The microcrystalline structure created by the thermomechanical treatment consisting of ECAP and static recrystallization leads to favorable combination of relatively high creep resistance and high ductility at 473 K with fracture strains in the order of 0.5.
dcterms:title
Effect of grain refinement by ECAP on creep of pure Cu Effect of grain refinement by ECAP on creep of pure Cu
skos:prefLabel
Effect of grain refinement by ECAP on creep of pure Cu Effect of grain refinement by ECAP on creep of pure Cu
skos:notation
RIV/68081723:_____/14:00435498!RIV15-GA0-68081723
n3:aktivita
n14:P n14:I
n3:aktivity
I, P(ED1.1.00/02.0068), P(GAP108/11/2260)
n3:cisloPeriodika
JAN
n3:dodaniDat
n10:2015
n3:domaciTvurceVysledku
n11:7024819 n11:8144036 n11:7393776
n3:druhVysledku
n15:J
n3:duvernostUdaju
n12:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
13302
n3:idVysledku
RIV/68081723:_____/14:00435498
n3:jazykVysledku
n18:eng
n3:klicovaSlova
Cu; ECAP; Static recrystallization; Creep; Ductility; High-angle boundaries
n3:klicoveSlovo
n7:Ductility n7:Creep n7:Static%20recrystallization n7:High-angle%20boundaries n7:Cu n7:ECAP
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[F4E6CD6BF95C]
n3:nazevZdroje
Materials Science and Engineering A-Structural materials
n3:obor
n6:JJ
n3:pocetDomacichTvurcuVysledku
3
n3:pocetTvurcuVysledku
5
n3:projekt
n4:GAP108%2F11%2F2260 n4:ED1.1.00%2F02.0068
n3:rokUplatneniVysledku
n10:2014
n3:svazekPeriodika
590
n3:tvurceVysledku
Sklenička, Václav Blum, W. Dvořák, Jiří Král, Petr Eisenlohr, P.
n3:wos
000329888500057
s:issn
0921-5093
s:numberOfPages
10
n9:doi
10.1016/j.msea.2013.10.022