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The work aimed to develop analytical methodologies with a view to evaluating various sampling preparation systems for the use of X-ray fluorescence techniques for analysing the major and minor components of the ferroalloys, which are used as alloy forming elements in steel making. Precise and accurate knowledge of the chemical composition of ferroalloys serves a dual purpose: economical, owing to the high cost of the principal components; and technological, owing to the influence exerted by the degree of definition of their composition on the manufacturing of the steels, when setting the tolerance limits and their properties. The study compares the possibilities of the developed systems for test and calibration samples preparation in terms of simplicity and rapidity and it assesses these parameters in relation to the accuracy and precision given in the results. The samples were prepared as metal samples, pellets and beads. The tests used to perfect these methods were conducted with commercial ferroalloys, previously characterized by employing chemical and spectroscopic wet analytical methods. Reproducibility and precison studies were conducted on samples obtained from each of the three sample preparation systems used.

Additional information

Authors: GÓMEZ COEDO A, Centro nacional de investigaciones metalúrgicas, Madrid (ES);JIMENEZ SECO J L, Centro nacional de investigaciones metalúrgicas, Madrid (ES);GOMEZ COEDO A, Centro nacional de investigaciones metalurgicas, Madrid (ES)
Bibliographic Reference: EUR 15509 ES (1996) 83pp., FS, ECU 10
Availability: Available from the (2)
ISBN: ISBN 92-827-5991-1
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