LASER-INDUCED DESORPTION OF NITROGEN FROM FE-CR-C MELT IN VACUUM

Authors
BURTSEV VT
Citation
Vt. Burtsev, LASER-INDUCED DESORPTION OF NITROGEN FROM FE-CR-C MELT IN VACUUM, Russian metallurgy. Metally, (4), 1993, pp. 38-43
Citations number
12
Categorie Soggetti
Metallurgy & Mining
Journal title
Russian metallurgy. Metally → ACNP
ISSN journal
00360295
Issue
4
Year of publication
1993
Pages
38 - 43
Database
ISI
SICI code
0036-0295(1993):4<38:LDONFF>2.0.ZU;2-U
Abstract
Laser-induced desorption of nitrogen from 40Kh13 chromium steel presat urated with nitrogen was studied in the pressure range 0.133 Pato 0.53 3 kPa by recording the change of N-14(2):N-15(2) ratio in the gas phas e over molten metal in an HF-induction heated alumina crucible. The de gree of desorption, and supersaturation of the melt were related to ga s pressure. Nitrogen mass-transfer parameters were calculated in relat ion to different desorption mechanism limiting stages and partial nitr ogen pressure.