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Practical Aspects of Carbon Content Determination in Carburized Steels by EPMA

Published online by Cambridge University Press:  14 July 2006

Florence Robaut ,
Alexandre Crisci ,
Madeleine Durand-Charre  and
Danielle Jouanne
Florence Robaut
Affiliation:
Consortium des Moyens Technologiques Communs, INPGrenoble, BP 75, 38402 Saint Martin d'Hères cedex, France
Alexandre Crisci
Affiliation:
Consortium des Moyens Technologiques Communs, INPGrenoble, BP 75, 38402 Saint Martin d'Hères cedex, France Laboratoire de Thermodynamique et Physicochimie des Matériaux (UMR INPG-CNRS 5614), BP 75, 38402 Saint Martin d'Hères cedex, France
Madeleine Durand-Charre
Affiliation:
Laboratoire de Thermodynamique et Physicochimie des Matériaux (UMR INPG-CNRS 5614), BP 75, 38402 Saint Martin d'Hères cedex, France
Danielle Jouanne
Affiliation:
Renault S.A., Direction de l'Ingéniérie des Matériaux, Service Analyses Physico-chimiques (64160), 78288 Guyancourt cedex, France
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Abstract

The carbon contents in carburized steels were investigated by electron probe microanalysis (EPMA) for a range of carbon levels in the solid solution less than 1 wt%. This article describes the difficulties encountered with the classic analytical procedure using the k ratio of X-ray intensities and the φ(ρz) model. Here, a suitable calibration curve method is presented with emphasis on the metallographic study of standard specimens and on the carbon decontamination of samples.

Keywords

carburized steelelectron probe microanalysiscarbon analysis
Type
MODERN DEVELOPMENTS AND APPLICATIONS IN MICROBEAM ANALYSIS
Information
Microscopy and Microanalysis , Volume 12 , Issue 4 , August 2006 , pp. 331 - 334
Copyright
© 2006 Microscopy Society of America

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References

REFERENCES

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