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The Application of X-Ray Fluorescence Probe Analysis to the Study of Segregation in Steels

Published online by Cambridge University Press:  06 March 2019

M. P. Johnson
Affiliation:
University of Leeds Yorkshire, Great Britain
P. R. Beeley
Affiliation:
University of Leeds Yorkshire, Great Britain
J. Nutting
Affiliation:
University of Leeds Yorkshire, Great Britain
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Abstract

Chemical analysis by the X-ray fluorescence microprobe technique offers potential means for the determination of compositional differences arising from the segregation of elements during the solidification of metals. The dimensional scale of the probe is expected to be suitable for the study of macro segregation and, in coarse-grained cast materials, of interdendritic micro segregation.

This paper describes preliminary work carried out to establish analytical sensitivity in respect of some minor constituents present in homogeneous steel samples of known composition. The significance of the results is discussed in relation to the problems of segregation in steel, and it is concluded that the Siemens Kristalloflex IV equipment needs to be adapted for fully focusing operation to achieve the sensitivity required for this work. Details are given of the work so far undertaken in this direction.

Type
Research Article
Copyright
Copyright © International Centre for Diffraction Data 1964

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