High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance
| Autor: | Morten Stendahl Jellesen, Marcel A. J. Somers, Grethe Winther, Thomas Lundin Christiansen, Federico Bottoli |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Crevice corrosion Alloy General Physics and Astronomy Potentiodynamic polarization chemistry.chemical_element 02 engineering and technology Pitting engineering.material 01 natural sciences High nitrogen steel Corrosion Low-temperature nitriding High-temperature solution nitriding 0103 physical sciences Surface layer 010302 applied physics Austenite Metallurgy Surfaces and Interfaces General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Nitrogen Surfaces Coatings and Films Expanded austenite chemistry engineering 0210 nano-technology Nitriding |
| Zdroj: | Bottoli, F, Jellesen, M S, Christiansen, T L, Winther, G & Somers, M A J 2018, ' High temperature solution-nitriding and low-temperature nitriding of AISI 316: Effect on pitting potential and crevice corrosion performance ', Applied Surface Science, vol. 431, pp. 24-31 . https://doi.org/10.1016/j.apsusc.2017.06.094 |
| DOI: | 10.1016/j.apsusc.2017.06.094 |
| Popis: | 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. 0.45 wt%) and in a surface layer (up to approx. 13 wt%), respectively. Potentiodynamic polarization tests in a 0.1 M NaCl solution and crevice corrosion immersion tests in 3 wt% 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. |
| Databáze: | OpenAIRE |
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