Hostname: page-component-7bb8b95d7b-lvwk9 Total loading time: 0 Render date: 2024-09-29T04:20:27.904Z Has data issue: false hasContentIssue false
  • English
  • Français

Modern Alloy Analysis and Identification with a Portable X-ray Analyzer

Published online by Cambridge University Press:  06 March 2019

Stanislaw Piorek
Stanislaw Piorek*
Affiliation:
Columbia Scientific Industries P.O. Box 203190 Austin, Texas 78720
Get access

Abstract

The combination of an improved resolution, gas proportional detector with advanced microprocessor technology provides a new and unique solution to the problem of alloy analysis.

A field portable, microprocessor controlled, fully user-programmable x-ray analyser is described for fast, reliable, on-site, positive alloy identification and assay. The radio-isotope based analyser employs a modified Lueas-Tooth and Price model of intensity corrections for quantitative, multielement analysis. Applications are reviewed and include examples to show the superior performance of the instrument in such difficult eases as sulfur in carbon steels, and titanium and nickel in stainless steels.

Discussion of the unique alloy identification scheme and its underlying principles is followed by examples of applications illustrating the capabilities of the instrument in distinguishing, in 5 seconds, alloys of closely similar compositions such as stainless steels 303, 304 and 321, and 410 and 416.

Type
V. XRF Applications
Information
Advances in X-Ray Analysis , Volume 32: Thirty-Seventh Annual Conference on Applications of X-ray Analysis, August 1-5, 1988 , 1988 , pp. 239 - 250
Copyright
Copyright © International Centre for Diffraction Data 1988

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Brown, R. D. , W. D., Riley, C. A., Zieba - “Rapid Identification of Stainless Steel and Superalloy Scrap”, U.S. Bureau of Mines Report, RI 8858, 1984.Google Scholar
2. Spiegel, F. X., E., Horowitz - “Instruments for the Sorting and Identification of Scrap Metal”, The John Hopkins University, Center for Material Research, Oct. 15, 1981, Published by John Hopkins University.Google Scholar
3. Jarvinen, M-L. , H., Sipila - “Effect of Pressure and Admixture of Neon Penning Mixtures on Proportional Counter Resolution” Nucl. Instr. Meth. 193 (1982), pp. 53–56.Google Scholar
4. Marr III, H.E. - “Rapid Identification of Copper-Base Alloys by Energy Dispersion X-Ray Analysis”, U.S. Bureau of Mines Report, RI 7878, 1974.Google Scholar
5. Russ, J. C. - “Elemental X-Ray Analysis of Materials Methods”, EDAX Int'l, 1972.Google Scholar
6. Berry P. F. - “Developments in Design and Application of Field-Portable XRF Instruments for On-Site Alloy Identification and Analysis”, presented at the 40th ASNT National Fall Conference, Atlanta, Oct. 12-15, 1981.Google Scholar
7. Sing-Tze, Bow - “Pattern Recognition; Application to Large Data-Set Problems”, Marcel Dekker, Inc. , New York, 1984,Google Scholar
8. Lucas-Tooth, H. J. , B. J., Price - “A Mathematical Method for the Investigation of Interelement Effects in X-ray Fluorescent Analyses”, Metallurgia, Vol. 54, No. 383, pp. 149–152, 1962.Google Scholar
9. Brammer Standard Reference Materials, Master Alloy Set, Data Sheets, Metals Analysis, Houston, Tx, 1986.Google Scholar