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Use of ion implantation to study the corrosion of an austenitic steel in an oxidizing/sulphidizing atmosphere
Author(s) -
Stroosnijder M. F.,
Norton J. F.
Publication year - 1994
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.740220193
Subject(s) - corrosion , oxidizing agent , metallurgy , materials science , cerium , austenite , austenitic stainless steel , oxide , ion implantation , layer (electronics) , nucleation , ion , chemistry , composite material , microstructure , organic chemistry
The beneficial effect of the addition by ion implantation of cerium on the corrosion behaviour of a 32Ni‐20Cr austenitic steel in a mixed oxidizing/sulphidizing environment, at 700 °C has been studied. Emphasis was placed on the initial stages of the corrosion process using a wide range of surface analytical techniques. Comparison is made with unimplanted material and also with xenon‐ and chromium‐implanted steel. The latter had no significant effect. In contrast Ce ion implantation improved the corrosion behaviour, which is probably due to a change in the nucleation stage of corrosion, leading to an improved quality of the oxide layer forming under the initial corrosion products. Factors which might contribute to this are discussed.