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Effect of surface preparation on the evolution of the passive films formed on AISI 304L
Author(s) -
Abreu C. M.,
Cristóbal M. J.,
Losada R.,
Nóvoa X. R.,
Pena G.,
Pérez M. C.
Publication year - 2006
Publication title -
surface and interface analysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.52
H-Index - 90
eISSN - 1096-9918
pISSN - 0142-2421
DOI - 10.1002/sia.2304
Subject(s) - oxide , corrosion , materials science , substrate (aquarium) , austenitic stainless steel , chloride , metal , metallurgy , surface roughness , austenite , surface finish , chemical engineering , composite material , microstructure , oceanography , geology , engineering
In this work, an insight into the effect of surface roughness in the composition and evolution of the oxide film electrogenerated on an austenitic stainless steel substrate is presented. The obtained results point out the importance of Ni on the oxide layers formed in alkaline media, which can condition their resistance to chloride attack. Polished samples show better corrosion performance than abraded ones owing to Ni enrichment at the metal‐oxide interface. Copyright © 2006 John Wiley & Sons, Ltd.