Static atomic displacements in Ni-rich Ni-Al

B. Schönfeld, G. Kostorz, M. Celino, V. Rosato

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Abstract

Short-range order and static atomic displacement parameters, previously determined from diffuse neutron scattering for Ni-8.9at.% Al equilibrated at 775 K and quenched to room temperature, were used to study lattice relaxation effects in molecular-dynamics simulations. An occupation of average lattice sites with Ni and Al atoms compatible with the short-range ordered state was taken as the starting situation. Displacement parameters obtained from the relaxation simulations and from diffuse neutron scattering show general similarity in magnitude and dependence on distance. Also, the species dependence of the displacement parameters known from diffuse X-ray scattering investigations is reproduced in magnitude.
Original languageEnglish
Pages (from-to)482 - 487
Number of pages6
JournalEurophysics Letters
Volume54
Issue number4
DOIs
Publication statusPublished - 11 May 2001

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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