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X-Ray Fluorescence Analysis of High-Temperature Super Alloys — Calibration and Standards

Published online by Cambridge University Press:  06 March 2019

K. F. J. Heinrich  and
S. D. Rasberry
K. F. J. Heinrich
Affiliation:
Institute for Materials Research, National Bureau of Standards, Washington, D. C. 20234
S. D. Rasberry
Affiliation:
Institute for Materials Research, National Bureau of Standards, Washington, D. C. 20234
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Abstract

The current experimental work extends our calibration concept of separating the effects of absorption and fluorescence to the high - temperature superalloys. The new calibration procedure produces calibration equations which are valid over wide ranges of composition — a feature which is useful in the analysis of high - temperature superalloys . For the specimens considered, the elements iron, nickel, chromium, cobalt and molybdenum can be present at levels greater than 10%; while tantalum, aluminum, titanium, manganese, silicon and vanadium may be present at levels between 1 and 6%. The calibration for this group of alloys has required, in the past, a large number of standards; the number is reduced by judicious application of the given correction equations. Analytical errors can be limited to 1 to 2% in the use of this method.

Type
Research Article
Information
Advances in X-Ray Analysis , Volume 17: Twenty-Second Annual Conference on Applications of X-ray Analysis, August 22-24, 1973 , 1973 , pp. 309 - 317
Copyright
Copyright © International Centre for Diffraction Data 1973

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References

1. Rasberry, S. D. and Heinrich, K. F. J., Colloquium Spectroscopicuni Internationale XVI, Heidelberg, Germany, (Oct. 1971).Google Scholar
2. Rasberry, S. D. and Heinrich, K. F. J., “Calibration for Interelement Effects in X-ray F1uorescence Analysis,” Anal. Chem. (Expected publication date: Jan. 1974.)Google Scholar