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- Title
Segregation studies in low-alloy steels by energy-dispersive x-ray spectrometry.
- Authors
Butler, S. A.
- Abstract
An automated energy-dispersive spectrometer/scanning electron microscope (EDS/SEM) system has been applied to the study of segregation in low-alloy steels in which the base concentrations of the alloying elements are ⩽ 1.5 wt%. The distribution of elements within segregation bands is measured at several hundred points arranged on rectangular grids. By using suitable calibration standards, an accuracy for an individual analysis of about ± 0.05 wt% (one standard deviation) is obtained. By using statistical analysis of whole sets of data, the effects of large relative errors in individual values are minimized, and useful results are obtained even for concentrations much less than 1.0 wt%. It is shown that the maximum-segregation ratio is unreliable as a measure of the severity of segregation, and is of limited use as an indicator of the likely effects on steel properties.
- Publication
Scanning, 1987, Vol 9, Issue 5, p205
- ISSN
0161-0457
- Publication type
Article
- DOI
10.1002/sca.4950090505