CobaltMaghrebV1, PascalFrancis, Corpus, bibRecord, 000098

Formation study of the ball-milled Cr20Co80 alloy

Identifieur interne : 000098 ( PascalFrancis/Corpus ); précédent : 000097; suivant : 000099

Formation study of the ball-milled Cr20Co80 alloy

Auteurs : S. Louidi ; F.-Z. Bentayeb ; J. J. Sunol ; L. Escoda

Source :

Journal of alloys and compounds [ 0925-8388 ] ; 2010.

RBID : Pascal:10-0176842

Descripteurs français

Pascal (Inist)
- Broyeur boulet, Broyeur satellite, Modification structure, Diffraction RX, Microstructure, Densité défaut empilement, Métallurgie poudre, Densité dislocation, Défaut empilement, Cinétique, Cobalt alliage, Réseau cubique face centrée, Réseau hexagonal compact, Chrome alliage, Métal transition alliage.

English descriptors

KwdEn :
- Ball mill, Chromium alloy, Cobalt alloy, Dislocation density, FCC lattices, HCP lattices, Kinetics, Microstructure, Planetary mill, Powder metallurgy, Stacking fault, Stacking fault density, Structure modification, Transition metal alloy, X ray diffraction.

Abstract

The ball milling of blended chromium and cobalt powders was carried out in a planetary mill in order to obtain a nanostructured Cr₂₀Co₈₀ alloy. The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite size, microstrains, stacking faults, dislocation density and phase fractions are determined. As the milling proceeded, the chromium peaks disappeared progressively indicating the dissolution of the chromium atoms into the cobalt matrix. Disordered hcp-Co(Cr) and fcc-Co(Cr) solid solutions were formed after 24 h of milling. The hcp solid solution has a lower value of the crystallite size and a higher degree of microstrains and dislocation density than the fcc solid solution. For prolonged milling (48 h), plastic deformations introduce large amounts of stacking faults in the hcp structure leading to the reverse hcp-fcc transformation of the Co(Cr) solid solution. The kinetic parameters n = 0.81 and k = 0.11, obtained using the Johnson-Mehl-Avrami formalism, correspond to diffusion mechanisms through interfaces and dislocations.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A03		`1`		`@0 J. alloys compd.`
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A08	`01`	`1`	`ENG`	`@1 Formation study of the ball-milled Cr₂₀Co₈₀ alloy`
A11	`01`	`1`		`@1 LOUIDI (S.)`
A11	`02`	`1`		`@1 BENTAYEB (F.-Z.)`
A11	`03`	`1`		`@1 SUNOL (J. J.)`
A11	`04`	`1`		`@1 ESCODA (L.)`
A14	`01`			`@1 Laboratoire de Magnétisme et de Spectroscopie des Solides (LM2S), Département de Physique, Faculté des Sciences, Université Badji Mokhtar, B.P. 12 @2 23000 Annaba @3 DZA @Z 1 aut. @Z 2 aut.`
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A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 1151 @5 354000181884260320`
A44				`@0 0000 @1 © 2010 INIST-CNRS. All rights reserved.`
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A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Journal of alloys and compounds`
A66	`01`			`@0 CHE`
C01	`01`		`ENG`	@0 The ball milling of blended chromium and cobalt powders was carried out in a planetary mill in order to obtain a nanostructured Cr₂₀Co₈₀ alloy. The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite size, microstrains, stacking faults, dislocation density and phase fractions are determined. As the milling proceeded, the chromium peaks disappeared progressively indicating the dissolution of the chromium atoms into the cobalt matrix. Disordered hcp-Co(Cr) and fcc-Co(Cr) solid solutions were formed after 24 h of milling. The hcp solid solution has a lower value of the crystallite size and a higher degree of microstrains and dislocation density than the fcc solid solution. For prolonged milling (48 h), plastic deformations introduce large amounts of stacking faults in the hcp structure leading to the reverse hcp-fcc transformation of the Co(Cr) solid solution. The kinetic parameters n = 0.81 and k = 0.11, obtained using the Johnson-Mehl-Avrami formalism, correspond to diffusion mechanisms through interfaces and dislocations.
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C03	`02`	`X`	`SPA`	`@0 Molino rodillos satelite @5 03`
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C03	`03`	`X`	`SPA`	`@0 Modificación estructural @5 04`
C03	`04`	`X`	`FRE`	`@0 Diffraction RX @5 05`
C03	`04`	`X`	`ENG`	`@0 X ray diffraction @5 05`
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C03	`06`	`X`	`ENG`	`@0 Stacking fault density @5 07`
C03	`06`	`X`	`SPA`	`@0 Densidad defecto apilamiento @5 07`
C03	`07`	`X`	`FRE`	`@0 Métallurgie poudre @5 08`
C03	`07`	`X`	`ENG`	`@0 Powder metallurgy @5 08`
C03	`07`	`X`	`GER`	`@0 Pulvermetallurgie @5 08`
C03	`07`	`X`	`SPA`	`@0 Metalurgia polvo @5 08`
C03	`08`	`X`	`FRE`	`@0 Densité dislocation @5 09`
C03	`08`	`X`	`ENG`	`@0 Dislocation density @5 09`
C03	`08`	`X`	`GER`	`@0 Versetzungsdichte @5 09`
C03	`08`	`X`	`SPA`	`@0 Densidad dislocación @5 09`
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C03	`11`	`X`	`FRE`	`@0 Cobalt alliage @5 15`
C03	`11`	`X`	`ENG`	`@0 Cobalt alloy @5 15`
C03	`11`	`X`	`GER`	`@0 Cobaltlegierung @5 15`
C03	`11`	`X`	`SPA`	`@0 Cobalto aleación @5 15`
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C03	`13`	`3`	`ENG`	`@0 HCP lattices @5 20`
C03	`14`	`X`	`FRE`	`@0 Chrome alliage @5 21`
C03	`14`	`X`	`ENG`	`@0 Chromium alloy @5 21`
C03	`14`	`X`	`GER`	`@0 Chromlegierung @5 21`
C03	`14`	`X`	`SPA`	`@0 Cromo aleación @5 21`
C03	`15`	`X`	`FRE`	`@0 Métal transition alliage @5 48`
C03	`15`	`X`	`ENG`	`@0 Transition metal alloy @5 48`
C03	`15`	`X`	`GER`	`@0 Uebergangsmetallegierung @5 48`
C03	`15`	`X`	`SPA`	`@0 Metal transición aleación @5 48`
N21				`@1 116`

Format Inist (serveur)

NO :	PASCAL 10-0176842 INIST
ET :	Formation study of the ball-milled Cr₂₀Co₈₀ alloy
AU :	LOUIDI (S.); BENTAYEB (F.-Z.); SUNOL (J. J.); ESCODA (L.)
AF :	Laboratoire de Magnétisme et de Spectroscopie des Solides (LM2S), Département de Physique, Faculté des Sciences, Université Badji Mokhtar, B.P. 12/23000 Annaba/Algérie (1 aut., 2 aut.); Département de Fisica, Universitat de Girona, Campus Montilivi/Girona 17071/Espagne (3 aut., 4 aut.)
DT :	Publication en série; Niveau analytique
SO :	Journal of alloys and compounds; ISSN 0925-8388; Suisse; Da. 2010; Vol. 493; No. 1-2; Pp. 110-115; Bibl. 33 ref.
LA :	Anglais
EA :	The ball milling of blended chromium and cobalt powders was carried out in a planetary mill in order to obtain a nanostructured Cr₂₀Co₈₀ alloy. The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite size, microstrains, stacking faults, dislocation density and phase fractions are determined. As the milling proceeded, the chromium peaks disappeared progressively indicating the dissolution of the chromium atoms into the cobalt matrix. Disordered hcp-Co(Cr) and fcc-Co(Cr) solid solutions were formed after 24 h of milling. The hcp solid solution has a lower value of the crystallite size and a higher degree of microstrains and dislocation density than the fcc solid solution. For prolonged milling (48 h), plastic deformations introduce large amounts of stacking faults in the hcp structure leading to the reverse hcp-fcc transformation of the Co(Cr) solid solution. The kinetic parameters n = 0.81 and k = 0.11, obtained using the Johnson-Mehl-Avrami formalism, correspond to diffusion mechanisms through interfaces and dislocations.
CC :	001D11C03B; 240
FD :	Broyeur boulet; Broyeur satellite; Modification structure; Diffraction RX; Microstructure; Densité défaut empilement; Métallurgie poudre; Densité dislocation; Défaut empilement; Cinétique; Cobalt alliage; Réseau cubique face centrée; Réseau hexagonal compact; Chrome alliage; Métal transition alliage
ED :	Ball mill; Planetary mill; Structure modification; X ray diffraction; Microstructure; Stacking fault density; Powder metallurgy; Dislocation density; Stacking fault; Kinetics; Cobalt alloy; FCC lattices; HCP lattices; Chromium alloy; Transition metal alloy
GD :	Kugelmuehle; Roentgenbeugung; Mikrogefuege; Pulvermetallurgie; Versetzungsdichte; Stapelfehler; Kinetik; Cobaltlegierung; Chromlegierung; Uebergangsmetallegierung
SD :	Molino bolas; Molino rodillos satelite; Modificación estructural; Difracción RX; Microestructura; Densidad defecto apilamiento; Metalurgia polvo; Densidad dislocación; Defecto apilado; Cinética; Cobalto aleación; Cromo aleación; Metal transición aleación
LO :	INIST-1151.354000181884260320
ID :	10-0176842

Links to Exploration step

Pascal:10-0176842

Le document en format XML

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<front><div type="abstract" xml:lang="en">The ball milling of blended chromium and cobalt powders was carried out in a planetary mill in order to obtain a nanostructured Cr<sub>20</sub>
Co<sub>80</sub>
 alloy. The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite size, microstrains, stacking faults, dislocation density and phase fractions are determined. As the milling proceeded, the chromium peaks disappeared progressively indicating the dissolution of the chromium atoms into the cobalt matrix. Disordered hcp-Co(Cr) and fcc-Co(Cr) solid solutions were formed after 24 h of milling. The hcp solid solution has a lower value of the crystallite size and a higher degree of microstrains and dislocation density than the fcc solid solution. For prolonged milling (48 h), plastic deformations introduce large amounts of stacking faults in the hcp structure leading to the reverse hcp-fcc transformation of the Co(Cr) solid solution. The kinetic parameters n = 0.81 and k = 0.11, obtained using the Johnson-Mehl-Avrami formalism, correspond to diffusion mechanisms through interfaces and dislocations.</div>
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<fC01 i1="01" l="ENG"><s0>The ball milling of blended chromium and cobalt powders was carried out in a planetary mill in order to obtain a nanostructured Cr<sub>20</sub>
Co<sub>80</sub>
 alloy. The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite size, microstrains, stacking faults, dislocation density and phase fractions are determined. As the milling proceeded, the chromium peaks disappeared progressively indicating the dissolution of the chromium atoms into the cobalt matrix. Disordered hcp-Co(Cr) and fcc-Co(Cr) solid solutions were formed after 24 h of milling. The hcp solid solution has a lower value of the crystallite size and a higher degree of microstrains and dislocation density than the fcc solid solution. For prolonged milling (48 h), plastic deformations introduce large amounts of stacking faults in the hcp structure leading to the reverse hcp-fcc transformation of the Co(Cr) solid solution. The kinetic parameters n = 0.81 and k = 0.11, obtained using the Johnson-Mehl-Avrami formalism, correspond to diffusion mechanisms through interfaces and dislocations.</s0>
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<s5>04</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Diffraction RX</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>X ray diffraction</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="GER"><s0>Roentgenbeugung</s0>
<s5>05</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Difracción RX</s0>
<s5>05</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Microstructure</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Microstructure</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="GER"><s0>Mikrogefuege</s0>
<s5>06</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Microestructura</s0>
<s5>06</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Densité défaut empilement</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Stacking fault density</s0>
<s5>07</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Densidad defecto apilamiento</s0>
<s5>07</s5>
</fC03>
<fC03 i1="07" i2="X" l="FRE"><s0>Métallurgie poudre</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="ENG"><s0>Powder metallurgy</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="GER"><s0>Pulvermetallurgie</s0>
<s5>08</s5>
</fC03>
<fC03 i1="07" i2="X" l="SPA"><s0>Metalurgia polvo</s0>
<s5>08</s5>
</fC03>
<fC03 i1="08" i2="X" l="FRE"><s0>Densité dislocation</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="ENG"><s0>Dislocation density</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="GER"><s0>Versetzungsdichte</s0>
<s5>09</s5>
</fC03>
<fC03 i1="08" i2="X" l="SPA"><s0>Densidad dislocación</s0>
<s5>09</s5>
</fC03>
<fC03 i1="09" i2="X" l="FRE"><s0>Défaut empilement</s0>
<s5>12</s5>
</fC03>
<fC03 i1="09" i2="X" l="ENG"><s0>Stacking fault</s0>
<s5>12</s5>
</fC03>
<fC03 i1="09" i2="X" l="GER"><s0>Stapelfehler</s0>
<s5>12</s5>
</fC03>
<fC03 i1="09" i2="X" l="SPA"><s0>Defecto apilado</s0>
<s5>12</s5>
</fC03>
<fC03 i1="10" i2="X" l="FRE"><s0>Cinétique</s0>
<s5>13</s5>
</fC03>
<fC03 i1="10" i2="X" l="ENG"><s0>Kinetics</s0>
<s5>13</s5>
</fC03>
<fC03 i1="10" i2="X" l="GER"><s0>Kinetik</s0>
<s5>13</s5>
</fC03>
<fC03 i1="10" i2="X" l="SPA"><s0>Cinética</s0>
<s5>13</s5>
</fC03>
<fC03 i1="11" i2="X" l="FRE"><s0>Cobalt alliage</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="ENG"><s0>Cobalt alloy</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="GER"><s0>Cobaltlegierung</s0>
<s5>15</s5>
</fC03>
<fC03 i1="11" i2="X" l="SPA"><s0>Cobalto aleación</s0>
<s5>15</s5>
</fC03>
<fC03 i1="12" i2="3" l="FRE"><s0>Réseau cubique face centrée</s0>
<s5>19</s5>
</fC03>
<fC03 i1="12" i2="3" l="ENG"><s0>FCC lattices</s0>
<s5>19</s5>
</fC03>
<fC03 i1="13" i2="3" l="FRE"><s0>Réseau hexagonal compact</s0>
<s5>20</s5>
</fC03>
<fC03 i1="13" i2="3" l="ENG"><s0>HCP lattices</s0>
<s5>20</s5>
</fC03>
<fC03 i1="14" i2="X" l="FRE"><s0>Chrome alliage</s0>
<s5>21</s5>
</fC03>
<fC03 i1="14" i2="X" l="ENG"><s0>Chromium alloy</s0>
<s5>21</s5>
</fC03>
<fC03 i1="14" i2="X" l="GER"><s0>Chromlegierung</s0>
<s5>21</s5>
</fC03>
<fC03 i1="14" i2="X" l="SPA"><s0>Cromo aleación</s0>
<s5>21</s5>
</fC03>
<fC03 i1="15" i2="X" l="FRE"><s0>Métal transition alliage</s0>
<s5>48</s5>
</fC03>
<fC03 i1="15" i2="X" l="ENG"><s0>Transition metal alloy</s0>
<s5>48</s5>
</fC03>
<fC03 i1="15" i2="X" l="GER"><s0>Uebergangsmetallegierung</s0>
<s5>48</s5>
</fC03>
<fC03 i1="15" i2="X" l="SPA"><s0>Metal transición aleación</s0>
<s5>48</s5>
</fC03>
<fN21><s1>116</s1>
</fN21>
</pA>
</standard>
<server><NO>PASCAL 10-0176842 INIST</NO>
<ET>Formation study of the ball-milled Cr<sub>20</sub>
Co<sub>80</sub>
 alloy</ET>
<AU>LOUIDI (S.); BENTAYEB (F.-Z.); SUNOL (J. J.); ESCODA (L.)</AU>
<AF>Laboratoire de Magnétisme et de Spectroscopie des Solides (LM2S), Département de Physique, Faculté des Sciences, Université Badji Mokhtar, B.P. 12/23000 Annaba/Algérie (1 aut., 2 aut.); Département de Fisica, Universitat de Girona, Campus Montilivi/Girona 17071/Espagne (3 aut., 4 aut.)</AF>
<DT>Publication en série; Niveau analytique</DT>
<SO>Journal of alloys and compounds; ISSN 0925-8388; Suisse; Da. 2010; Vol. 493; No. 1-2; Pp. 110-115; Bibl. 33 ref.</SO>
<LA>Anglais</LA>
<EA>The ball milling of blended chromium and cobalt powders was carried out in a planetary mill in order to obtain a nanostructured Cr<sub>20</sub>
Co<sub>80</sub>
 alloy. The structural modifications at different stages of the ball milling are investigated with X-ray diffraction. Several microstructure parameters such as the crystallite size, microstrains, stacking faults, dislocation density and phase fractions are determined. As the milling proceeded, the chromium peaks disappeared progressively indicating the dissolution of the chromium atoms into the cobalt matrix. Disordered hcp-Co(Cr) and fcc-Co(Cr) solid solutions were formed after 24 h of milling. The hcp solid solution has a lower value of the crystallite size and a higher degree of microstrains and dislocation density than the fcc solid solution. For prolonged milling (48 h), plastic deformations introduce large amounts of stacking faults in the hcp structure leading to the reverse hcp-fcc transformation of the Co(Cr) solid solution. The kinetic parameters n = 0.81 and k = 0.11, obtained using the Johnson-Mehl-Avrami formalism, correspond to diffusion mechanisms through interfaces and dislocations.</EA>
<CC>001D11C03B; 240</CC>
<FD>Broyeur boulet; Broyeur satellite; Modification structure; Diffraction RX; Microstructure; Densité défaut empilement; Métallurgie poudre; Densité dislocation; Défaut empilement; Cinétique; Cobalt alliage; Réseau cubique face centrée; Réseau hexagonal compact; Chrome alliage; Métal transition alliage</FD>
<ED>Ball mill; Planetary mill; Structure modification; X ray diffraction; Microstructure; Stacking fault density; Powder metallurgy; Dislocation density; Stacking fault; Kinetics; Cobalt alloy; FCC lattices; HCP lattices; Chromium alloy; Transition metal alloy</ED>
<GD>Kugelmuehle; Roentgenbeugung; Mikrogefuege; Pulvermetallurgie; Versetzungsdichte; Stapelfehler; Kinetik; Cobaltlegierung; Chromlegierung; Uebergangsmetallegierung</GD>
<SD>Molino bolas; Molino rodillos satelite; Modificación estructural; Difracción RX; Microestructura; Densidad defecto apilamiento; Metalurgia polvo; Densidad dislocación; Defecto apilado; Cinética; Cobalto aleación; Cromo aleación; Metal transición aleación</SD>
<LO>INIST-1151.354000181884260320</LO>
<ID>10-0176842</ID>
</server>
</inist>
</record>

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Formation study of the ball-milled Cr20Co80 alloy

Formation study of the ball-milled Cr20Co80 alloy

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