Carbon Analysis in Steels by FE-EPMA: A Challenge or Contradiction?
نویسندگان
چکیده
منابع مشابه
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 m...
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Unquestionably, since their introduction one decade ago, field emission (FE) electron microprobes have pushed the boundaries of electron probe microanalysis (EPMA) by offering new possibilities to characterize smaller features. As with conventional microprobes, the proper selection of the analytical conditions (beam energy, beam current, acquisition time, x-ray line) is essential to obtain an a...
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In multiphase steels, control of the carbon contents in the respective phases is the most important factor in alloy design for achieving high strength and high ductility. However, it is unusually difficult to determine the carbon contents in multiphase structures with high accuracy by electron probe microanalysis (EPMA) due to the unavoidable effect of hydrocarbon contamination during measureme...
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ژورنال
عنوان ژورنال: Microscopy and Microanalysis
سال: 2019
ISSN: 1431-9276,1435-8115
DOI: 10.1017/s1431927619009553