The nitrogen transport in austenitic stainless steel at moderate temperatures

Authors
Parascandola, S Moller, W Williamson, DL
Citation
S. Parascandola et al., The nitrogen transport in austenitic stainless steel at moderate temperatures, APPL PHYS L, 76(16), 2000, pp. 2194-2196
Citations number
28
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
APPLIED PHYSICS LETTERS
ISSN journal
00036951 → ACNP
Volume
76
Issue
16
Year of publication
2000
Pages
2194 - 2196
Database
ISI
SICI code
0003-6951(20000417)76:16<2194:TNTIAS>2.0.ZU;2-N
Abstract
A model for the transport of nitrogen in austenitic stainless steel at temp eratures around 400 degrees C is presented and discussed. The model conside rs the diffusion of nitrogen under the influence of trapping and detrapping at trap sites formed by local chromium. Nitrogen depth profiles simulated on the basis of the model with diffusion and detrapping activation energies of 1.1 and 1.45 eV, respectively, are in good agreement with experimental nitrogen profiles. (C) 2000 American Institute of Physics. [S0003-6951(00)0 0416-2].