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Stacking faults and structural characterization of mechanically alloyed Ni50Cu10(Fe2B)10P30 powders

  • M. Slimi
  • M. Azabou
  • L. Escoda
  • J. J. Suñol
  • M. Khitouni
Regular Article

Abstract.

The nanocrystalline NiCu(Fe2B)P alloy was prepared by mechanically alloying of the elemental powders in a high-energy ball mill under argon atmosphere. The transformations occurring in the material during milling were studied by X-ray diffraction. Microstructure parameters, such as crystallite size, microstrains, stacking faults probability, and dislocations density were determined from the Rietveld refinement of the X-ray diffraction patterns. Scanning electron microscopy (SEM) was employed to examine the morphology of the samples as a function of milling times. On further milling (40h), a nanocrystalline matrix, where nanocrystalline Fcc-Ni(Cu, Fe, P), Fe2B and Bcc-Fe(B) phases were embedded, was obtained. The phase transformations are related to the increase of dislocation and accumulation of stacking faults. The nanostructure formation caused by mechanical alloying are commonly attributed to the generation and movement of dislocations.

Keywords

Milling Crystallite Size Powder Particle Mechanical Alloy Nanocrystalline Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg 2015

Authors and Affiliations

  • M. Slimi
    • 1
  • M. Azabou
    • 1
  • L. Escoda
    • 2
  • J. J. Suñol
    • 2
  • M. Khitouni
    • 1
  1. 1.Laboratoire de Chimie Inorganique, Ur-11-ES-73Université de SfaxFSSTunisie
  2. 2.Dep. de FisicaUniversitat de GironaGironaSpain

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