NickelMaghrebV1, PascalFrancis, Checkpoint, bibRecord, 000013

Structural and microstructural properties of nanocrystalline Cu-Fe-Ni powders produced by mechanical alloying

Identifieur interne : 000013 ( PascalFrancis/Checkpoint ); précédent : 000012; suivant : 000014

Structural and microstructural properties of nanocrystalline Cu-Fe-Ni powders produced by mechanical alloying

Auteurs : M. Slimi [Tunisie] ; M. Azabou [Tunisie] ; L. Escoda [Espagne] ; J. J. Sunol [Espagne] ; M. Khitouni [Tunisie]

Source :

Powder technology [ 0032-5910 ] ; 2014.

RBID : Pascal:14-0224443

Descripteurs français

Pascal (Inist)
- Poudre, Alliage mécanique, Broyeur boulet, Diffraction RX, Microscopie électronique balayage, Solution solide, Densité, Durcissement, Nanomatériau, Microstructure.

English descriptors

KwdEn :
- Ball mill, Density, Hardening, Mechanical alloying, Microstructure, Nanostructured materials, Powder, Scanning electron microscopy, Solid solution, X ray diffraction.

Abstract

A nanostructured disordered copper-iron-nickel alloy having the (Cu₆₀Fe₄₀)₇₀Ni₃₀ composition was prepared through the mechanical alloying of the elemental powders in a high-energy ball mill under an argon atmosphere. The structural and morphological evolutions during mechanical alloying were investigated by X-ray diffraction and scanning electron microscopy. The patterns obtained were analyzed using the MAUD program. The transformation of the phase depended on the alloying time. The final product of the mechanical alloying process was nanocrystalline double-phase FCC-Cu(Fe,Ni) and BCC-Fe(Ni) solid solutions with a mean crystallite size in the range of few nanometers. The dislocation densities were found to be 6 × 10¹⁵ m^-2, and the strain hardening caused by high-energy mechanical alloying was consistent with the concept of dislocations.

Affiliations:

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Le document en format XML

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<front><div type="abstract" xml:lang="en">A nanostructured disordered copper-iron-nickel alloy having the (Cu<sub>60</sub>
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 composition was prepared through the mechanical alloying of the elemental powders in a high-energy ball mill under an argon atmosphere. The structural and morphological evolutions during mechanical alloying were investigated by X-ray diffraction and scanning electron microscopy. The patterns obtained were analyzed using the MAUD program. The transformation of the phase depended on the alloying time. The final product of the mechanical alloying process was nanocrystalline double-phase FCC-Cu(Fe,Ni) and BCC-Fe(Ni) solid solutions with a mean crystallite size in the range of few nanometers. The dislocation densities were found to be 6 × 10<sup>15</sup>
 m<sup>-2</sup>
, and the strain hardening caused by high-energy mechanical alloying was consistent with the concept of dislocations.</div>
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 composition was prepared through the mechanical alloying of the elemental powders in a high-energy ball mill under an argon atmosphere. The structural and morphological evolutions during mechanical alloying were investigated by X-ray diffraction and scanning electron microscopy. The patterns obtained were analyzed using the MAUD program. The transformation of the phase depended on the alloying time. The final product of the mechanical alloying process was nanocrystalline double-phase FCC-Cu(Fe,Ni) and BCC-Fe(Ni) solid solutions with a mean crystallite size in the range of few nanometers. The dislocation densities were found to be 6 × 10<sup>15</sup>
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Structural and microstructural properties of nanocrystalline Cu-Fe-Ni powders produced by mechanical alloying

Structural and microstructural properties of nanocrystalline Cu-Fe-Ni powders produced by mechanical alloying

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Abstract

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