3 - Synchrotron radiation X-ray diffraction

Abstract

This chapter concentrates on the use of high-resolution synchrotron X-ray diffraction technique for research into phase transformations in titanium alloys and aluminides. Both room and high temperature measurements are described, the former for studying the structure of the alloys after different heat treatments and the latter for in situ study of the transformations on the sample surface at elevated temperatures. The phase equilibria of the alloys are calculated and compared with the molar phase fractions of phases derived after the fitting procedure of the diffraction patterns at elevated temperatures.