Microstructures and textures of a Cu-Ni-Si alloy processed by high-pressure torsion
Identifieur interne : 000188 ( Main/Exploration ); précédent : 000187; suivant : 000189Microstructures and textures of a Cu-Ni-Si alloy processed by high-pressure torsion
Auteurs : ABDEL YAZID KHEREDDINE [Algérie] ; FAYÇAL HADJ LARBI [Algérie] ; Hiba Azzeddine [Algérie] ; Thierry Baudin [France] ; Francois Brisset [France] ; Anne-Laure Helbert [France] ; Marie-Hélène Mathon [France] ; Megumi Kawasaki [Corée du Sud, États-Unis] ; Djamel Bradai [Algérie] ; Terence G. Langdon [États-Unis, Royaume-Uni]Source :
- Journal of alloys and compounds [ 0925-8388 ] ; 2013.
Descripteurs français
- Pascal (Inist)
- Microstructure, Texture, Traitement matériau, Affinement grain, Structure équiaxe, Grosseur grain, Désorientation joint grain, Désorientation grain, Cisaillement, Structure grain fin, Addition silicium, Réseau cubique, Alliage base cuivre, Nickel alliage, Alliage ternaire, 8140E, Torsion sous haute pression.
English descriptors
- KwdEn :
Abstract
Experiments were conducted to evaluate the evolution of microstructure and texture in a commercial Cu-2.5%Ni-0.6%Si (wt.%) alloy during processing by high-pressure torsion (HPT) at room temperature up to a maximum of 10 turns. It is shown that HPT leads to grain refinement to a mean equiaxed grain size of ∼200 nm, the evolution occurs rapidly at the edges of the disks but progresses more slowly in the center of each disk and ultimately, after 10 turns, the grain structure is reasonably homogeneous. There is an evolution also in the grain boundary misorientations and after 5 or more revolutions the fraction of high-angle grain boundaries is about 68%. The texture after HPT is characterized by typical shear components of face-centered cubic metals and mainly by the reinforcement of the (111)(211) orientation of the A* texture component.
Affiliations:
- Algérie, Corée du Sud, France, Royaume-Uni, États-Unis
- Californie, Wilaya d'Alger, Île-de-France
- Alger, Gif-sur-Yvette, Los Angeles, Orsay, Séoul
- Université de Californie du Sud
Links toward previous steps (curation, corpus...)
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- to stream PascalFrancis, to step Curation: 000389
- to stream PascalFrancis, to step Checkpoint: 000052
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Le document en format XML
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<term>Grain boundary misorientation</term>
<term>Grain refinement</term>
<term>Grain size</term>
<term>High angle grain boundary</term>
<term>High pressure torsion</term>
<term>Material processing</term>
<term>Microstructure</term>
<term>Nickel alloys</term>
<term>Shear</term>
<term>Silicon additions</term>
<term>Ternary alloys</term>
<term>Texture</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Microstructure</term>
<term>Texture</term>
<term>Traitement matériau</term>
<term>Affinement grain</term>
<term>Structure équiaxe</term>
<term>Grosseur grain</term>
<term>Désorientation joint grain</term>
<term>Désorientation grain</term>
<term>Cisaillement</term>
<term>Structure grain fin</term>
<term>Addition silicium</term>
<term>Réseau cubique</term>
<term>Alliage base cuivre</term>
<term>Nickel alliage</term>
<term>Alliage ternaire</term>
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<front><div type="abstract" xml:lang="en">Experiments were conducted to evaluate the evolution of microstructure and texture in a commercial Cu-2.5%Ni-0.6%Si (wt.%) alloy during processing by high-pressure torsion (HPT) at room temperature up to a maximum of 10 turns. It is shown that HPT leads to grain refinement to a mean equiaxed grain size of ∼200 nm, the evolution occurs rapidly at the edges of the disks but progresses more slowly in the center of each disk and ultimately, after 10 turns, the grain structure is reasonably homogeneous. There is an evolution also in the grain boundary misorientations and after 5 or more revolutions the fraction of high-angle grain boundaries is about 68%. The texture after HPT is characterized by typical shear components of face-centered cubic metals and mainly by the reinforcement of the (111)(211) orientation of the A* texture component.</div>
</front>
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<affiliations><list><country><li>Algérie</li>
<li>Corée du Sud</li>
<li>France</li>
<li>Royaume-Uni</li>
<li>États-Unis</li>
</country>
<region><li>Californie</li>
<li>Wilaya d'Alger</li>
<li>Île-de-France</li>
</region>
<settlement><li>Alger</li>
<li>Gif-sur-Yvette</li>
<li>Los Angeles</li>
<li>Orsay</li>
<li>Séoul</li>
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<orgName><li>Université de Californie du Sud</li>
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<name sortKey="Azzeddine, Hiba" sort="Azzeddine, Hiba" uniqKey="Azzeddine H" first="Hiba" last="Azzeddine">Hiba Azzeddine</name>
<name sortKey="Bradai, Djamel" sort="Bradai, Djamel" uniqKey="Bradai D" first="Djamel" last="Bradai">Djamel Bradai</name>
<name sortKey="Faycal Hadj Larbi" sort="Faycal Hadj Larbi" uniqKey="Faycal Hadj Larbi" last="Fayçal Hadj Larbi">FAYÇAL HADJ LARBI</name>
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<country name="France"><region name="Île-de-France"><name sortKey="Baudin, Thierry" sort="Baudin, Thierry" uniqKey="Baudin T" first="Thierry" last="Baudin">Thierry Baudin</name>
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<name sortKey="Brisset, Francois" sort="Brisset, Francois" uniqKey="Brisset F" first="Francois" last="Brisset">Francois Brisset</name>
<name sortKey="Helbert, Anne Laure" sort="Helbert, Anne Laure" uniqKey="Helbert A" first="Anne-Laure" last="Helbert">Anne-Laure Helbert</name>
<name sortKey="Mathon, Marie Helene" sort="Mathon, Marie Helene" uniqKey="Mathon M" first="Marie-Hélène" last="Mathon">Marie-Hélène Mathon</name>
</country>
<country name="Corée du Sud"><noRegion><name sortKey="Kawasaki, Megumi" sort="Kawasaki, Megumi" uniqKey="Kawasaki M" first="Megumi" last="Kawasaki">Megumi Kawasaki</name>
</noRegion>
</country>
<country name="États-Unis"><region name="Californie"><name sortKey="Kawasaki, Megumi" sort="Kawasaki, Megumi" uniqKey="Kawasaki M" first="Megumi" last="Kawasaki">Megumi Kawasaki</name>
</region>
<name sortKey="Langdon, Terence G" sort="Langdon, Terence G" uniqKey="Langdon T" first="Terence G." last="Langdon">Terence G. Langdon</name>
</country>
<country name="Royaume-Uni"><noRegion><name sortKey="Langdon, Terence G" sort="Langdon, Terence G" uniqKey="Langdon T" first="Terence G." last="Langdon">Terence G. Langdon</name>
</noRegion>
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</affiliations>
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