A whole pattern iterative refinement method for powder X-ray diffraction spectra of two-phase coherent alloys

P. A. Ferreirós; G. H. Rubiolo

doi:10.1007/s10853-017-1682-5

A whole pattern iterative refinement method for powder X-ray diffraction spectra of two-phase coherent alloys

P. A. Ferreirós^*
, G. H. Rubiolo

^*Corresponding author for this work

Not published at VTT

Universidad Nacional de San Martín
National Technological University
Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET)

Research output: Contribution to journal › Article › Scientific › peer-review

10 Citations (Scopus)

Abstract

An iterative refining method using FullProf software (Rietveld refinement) as a multi-input–output black-box with cyclic feedback is proposed in order to accurately measure the lattice misfit in two-phase coherent alloys. The method uses two X-ray diffraction spectra taken on the same powder sample. In addition, it requires the volumetric fraction of the phases and the size of the crystallite in the precipitated phase as derived from the measurements made by the transmission electron microscopy–energy dispersive spectroscopy technique. The measurement of the lattice misfit in a Fe₂AlV-strengthened ferritic Fe₇₆Al₁₂V₁₂ alloy is shown as an application of the method.

Original language	English
Pages (from-to)	2802-2811
Journal	Journal of Materials Science
Volume	53
Issue number	4
DOIs	https://doi.org/10.1007/s10853-017-1682-5
Publication status	Published - 1 Feb 2018
MoE publication type	A1 Journal article-refereed

Funding

The authors wish to thank Dr. Daniel Vega for the services provided by the Difracción de Rayos X Laboratory, Física de la Materia Condensada Department, Gerencia de Investigaciones y Aplica-ciones, GAIyANN-CAC-CNEA. PAF was supported by a Comisión Nacional de Energía Atómica (CNEA) professional fellowship.

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abstract = "An iterative refining method using FullProf software (Rietveld refinement) as a multi-input–output black-box with cyclic feedback is proposed in order to accurately measure the lattice misfit in two-phase coherent alloys. The method uses two X-ray diffraction spectra taken on the same powder sample. In addition, it requires the volumetric fraction of the phases and the size of the crystallite in the precipitated phase as derived from the measurements made by the transmission electron microscopy–energy dispersive spectroscopy technique. The measurement of the lattice misfit in a Fe2AlV-strengthened ferritic Fe76Al12V12 alloy is shown as an application of the method.",

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N2 - An iterative refining method using FullProf software (Rietveld refinement) as a multi-input–output black-box with cyclic feedback is proposed in order to accurately measure the lattice misfit in two-phase coherent alloys. The method uses two X-ray diffraction spectra taken on the same powder sample. In addition, it requires the volumetric fraction of the phases and the size of the crystallite in the precipitated phase as derived from the measurements made by the transmission electron microscopy–energy dispersive spectroscopy technique. The measurement of the lattice misfit in a Fe2AlV-strengthened ferritic Fe76Al12V12 alloy is shown as an application of the method.

AB - An iterative refining method using FullProf software (Rietveld refinement) as a multi-input–output black-box with cyclic feedback is proposed in order to accurately measure the lattice misfit in two-phase coherent alloys. The method uses two X-ray diffraction spectra taken on the same powder sample. In addition, it requires the volumetric fraction of the phases and the size of the crystallite in the precipitated phase as derived from the measurements made by the transmission electron microscopy–energy dispersive spectroscopy technique. The measurement of the lattice misfit in a Fe2AlV-strengthened ferritic Fe76Al12V12 alloy is shown as an application of the method.

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A whole pattern iterative refinement method for powder X-ray diffraction spectra of two-phase coherent alloys

Abstract

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