CHEMICAL-ANALYSIS OF PASSIVE FILMS ON TYPE AISI-304 STAINLESS-STEEL USING SOFT-X-RAY ABSORPTION-SPECTROSCOPY

Authors
BASTIDAS JM LOPEZ MF GUTIERREZ A TORRES CL
Citation
Jm. Bastidas et al., CHEMICAL-ANALYSIS OF PASSIVE FILMS ON TYPE AISI-304 STAINLESS-STEEL USING SOFT-X-RAY ABSORPTION-SPECTROSCOPY, Corrosion science, 40(2-3), 1998, pp. 431-438
Citations number
19
Categorie Soggetti
Material Science","Metallurgy & Metallurigical Engineering
Journal title
Corrosion science → ACNP
ISSN journal
0010938X
Volume
40
Issue
2-3
Year of publication
1998
Pages
431 - 438
Database
ISI
SICI code
0010-938X(1998)40:2-3<431:COPFOT>2.0.ZU;2-U
Abstract
X-ray absorption spectroscopy has been employed to investigate the dif ferences between passive films on type AISI 304 stainless steel produc ed by anodic polarization at two scan rates and four potential values. Cr L-III,L-II spectra show that in all cases a Cr2O3 film is formed a t the surface. Fe and Ni signals have a mainly metallic lineshape with a possible small contribution from hydroxides, which is maximum for t he polarized sample at the slowest scan rate and the maximum potential . Also for this sample a decrease in the Mn signal indicates Mn dissol ution. (C) 1998 Elsevier Science Ltd. All rights reserved.