Journal article
High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance
Stainless steels grade AISI 316 was subjected to high temperature solution nitriding and low-temperature nitriding in order to dissolve various amounts of nitrogen in the bulk (up to approx. 0.45wt%) and in a surface layer (up to approx. 13wt%), respectively. Potentiodynamic polarization tests in a 0.1M NaCl solution and crevice corrosion immersion tests in 3wt% FeCl3 solution were studied before and after the bulk and surface treatments.Nitrogen addition in the bulk proved to have a beneficial effect on the pitting resistance of the alloy.
The formation of a zone of expanded austenite at the material surface through low-temperature nitriding resulted in a considerable improvement of the pitting potential and the crevice corrosion performance of the steels.
Language: | English |
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Year: | 2018 |
Pages: | 24-31 |
ISSN: | 18735584 and 01694332 |
Types: | Journal article |
DOI: | 10.1016/j.apsusc.2017.06.094 |
ORCIDs: | Jellesen, Morten Stendahl , Christiansen, Thomas Lundin , Winther, Grethe and Somers, Marcel A. J. |