Practical aspects of carbon content determination in carburized steels by EPMA.
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 phi(rhoz) 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.
Robaut
Florence
F
Consortium des Moyens Technologiques Communs, INPGrenoble, BP 75, 38402 Saint Martin d'Hères cedex, France. florence.robaut@cmtc.inpg.fr
Crisci
Alexandre
A
Durand-Charre
Madeleine
M
Jouanne
Danielle
D