DETERMINATION OF CARBON CONTENT IN MOLTEN STEEL USING LASER-INDUCED BREAKDOWN SPECTROSCOPY

Citation
C. Aragon et al., DETERMINATION OF CARBON CONTENT IN MOLTEN STEEL USING LASER-INDUCED BREAKDOWN SPECTROSCOPY, Applied spectroscopy, 47(5), 1993, pp. 606-608
Citations number
8
Categorie Soggetti
Instument & Instrumentation",Spectroscopy
Journal title
ISSN journal
00037028
Volume
47
Issue
5
Year of publication
1993
Pages
606 - 608
Database
ISI
SICI code
0003-7028(1993)47:5<606:DOCCIM>2.0.ZU;2-I
Abstract
Laser-induced breakdown spectroscopy has been applied to the determina tion of carbon content in steel samples melted in a laboratory inducti on furnace. A focused Nd:YAG laser beam was used to generate the plasm a on the liquid surface in argon atmosphere. The precision obtained is 10% for carbon contents in the range 150-1100 ppm, and the detection limit is 250 ppm. The present results show that this technique can be applied for direct composition determination in molten alloys.