PHASE ANALYSIS OF NITI WIRE BASED ON SYNCHROTRON 2D X-RAY DIFFRACTION PATTERN IN MATLAB

Authors

  • Martin Dudr Department of Solid State Engineerign Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague, Trojanova 13 120 00 Prague 2, Czech Republic b Institute of Physics , Na Slovance 2 182 21 Prague, Czech Republic
  • Daniel Šimek Department of Solid State Engineerign Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague, Trojanova 13 120 00 Prague 2, Czech Republic b Institute of Physics , Na Slovance 2 182 21 Prague, Czech Republic
  • Jan Drahokoupil Department of Solid State Engineerign Faculty of Nuclear Sciences and Physical Engineering Czech Technical University in Prague, Trojanova 13 120 00 Prague 2, Czech Republic b Institute of Physics , Na Slovance 2 182 21 Prague, Czech Republic

DOI:

https://doi.org/10.14311/APP.2017.9.0008

Abstract

This paper deals with simplified phase analysis of 2D diffraction patterns obtained using microfocused X-ray at various places of superelastic NiTi wire under combined load. For this purpose, MATLAB routines and functions were created, which carry out integration of the patterns in various sectors of Debye ring, fitting of the patterns by a mixture of austenite and martensite (having neglected the R-phase) and successive evaluation of the quantitative phase content. The most crucial simplificating assumptions were: the neglection of the R-phase and the assumption of a) fibre texture or b) no texture.

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Published

2017-07-28

Issue

Vol. 9 (2017): SSCSSP-6

Section

Articles

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