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Statements

Subject Item
n2:RIV%2F00216208%3A11320%2F14%3A10286571%21RIV15-MSM-11320___
rdf:type
n5:Vysledek skos:Concept
rdfs:seeAlso
http://dx.doi.org/10.1016/j.msea.2013.12.104
dcterms:description
Structure, microhardness and electrical resistivity of the Cu-0.18% Zr alloy after high pressure torsion (HPT) were investigated for different initial states (hot-pressed, annealed, quenched) and deformation schedules. It is shown that HPT leads to formation of submicrocrystalline structure with the grain size of 200-250 nm. Studying of electrical resistivity of the Cu-0.18% Zr alloy showed that during HPT it increases with increasing the strain in comparison with initial not deformed state. It can be connected with changes of grain and subgrain structure, and also with processes of dissolution of particles of the second phase Cu5Zr during deformation. Decreasing of electrical resistivity values of Cu-0.18% Zr alloy after HPT during heating in the temperatures range of 250-400 degrees C and preservation or increase of microhardness values in this temperature interval reveal aging processes with allocation of Cu5Zr particles and confirm the fact of partial supersaturation of solid solution of copper with zirconium during deformation. Application of quenching, HPT and subsequent aging allows to achieve the maximum strengthening of the alloy. (C) 2014 Elsevier B.V. All rights reserved. Structure, microhardness and electrical resistivity of the Cu-0.18% Zr alloy after high pressure torsion (HPT) were investigated for different initial states (hot-pressed, annealed, quenched) and deformation schedules. It is shown that HPT leads to formation of submicrocrystalline structure with the grain size of 200-250 nm. Studying of electrical resistivity of the Cu-0.18% Zr alloy showed that during HPT it increases with increasing the strain in comparison with initial not deformed state. It can be connected with changes of grain and subgrain structure, and also with processes of dissolution of particles of the second phase Cu5Zr during deformation. Decreasing of electrical resistivity values of Cu-0.18% Zr alloy after HPT during heating in the temperatures range of 250-400 degrees C and preservation or increase of microhardness values in this temperature interval reveal aging processes with allocation of Cu5Zr particles and confirm the fact of partial supersaturation of solid solution of copper with zirconium during deformation. Application of quenching, HPT and subsequent aging allows to achieve the maximum strengthening of the alloy. (C) 2014 Elsevier B.V. All rights reserved.
dcterms:title
Effect of deformation schedules and initial states on structure and properties of Cu-0.18% Zr alloy after high-pressure torsion and heating Effect of deformation schedules and initial states on structure and properties of Cu-0.18% Zr alloy after high-pressure torsion and heating
skos:prefLabel
Effect of deformation schedules and initial states on structure and properties of Cu-0.18% Zr alloy after high-pressure torsion and heating Effect of deformation schedules and initial states on structure and properties of Cu-0.18% Zr alloy after high-pressure torsion and heating
skos:notation
RIV/00216208:11320/14:10286571!RIV15-MSM-11320___
n3:aktivita
n18:I
n3:aktivity
I
n3:cisloPeriodika
-
n3:dodaniDat
n9:2015
n3:domaciTvurceVysledku
n7:5345553
n3:druhVysledku
n14:J
n3:duvernostUdaju
n4:S
n3:entitaPredkladatele
n12:predkladatel
n3:idSjednocenehoVysledku
13218
n3:idVysledku
RIV/00216208:11320/14:10286571
n3:jazykVysledku
n15:eng
n3:klicovaSlova
Electrical resistivity; Microhardness; Precipitation; Ultrafine grained structure; High pressure torsion; Copper alloys
n3:klicoveSlovo
n8:Electrical%20resistivity n8:Microhardness n8:High%20pressure%20torsion n8:Ultrafine%20grained%20structure n8:Precipitation n8:Copper%20alloys
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[804B0116638A]
n3:nazevZdroje
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
n3:obor
n10:BM
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
4
n3:rokUplatneniVysledku
n9:2014
n3:svazekPeriodika
598
n3:tvurceVysledku
Dobatkin, Sergey V. Bochvar, Natalia R. Janeček, Miloš Shangina, Daria V.
n3:wos
000333772400032
s:issn
0921-5093
s:numberOfPages
5
n17:doi
10.1016/j.msea.2013.12.104
n16:organizacniJednotka
11320