Tracking nitrogen and carbon in steel using a mobile OES

摘要

THE latest version of the Spectrotest arc/spark- -OES mobile spectrometer for metals analysis is even more flexible than the previous type using a smaller, more compact, sample probe. This enables it to tackle two new applications: The measurement of carbon in low alloy steel using arc discharge and the determination of the nitrogen content in duplex steels. The most important innovation is the sample probe, which is significantly smaller, lighter and more compact than its predecessor. With the reduced diameter of the probe it is possible to analyse surfaces in hard-to-reach locations, for example, bundled rods and bars. The standard probe can be used with arc excitation for quick grade identification and also to obtain a detailed analysis using spark excitation. The result is shown on the display integral with the instrument after only three seconds in the sorting mode and after five seconds in the analysis mode.