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Chala, A., Nouveau, C., Djouadi, M. A., Steyer, P., Millet, J. P., Saied, C., Aida, M. S. & Lambertin, M. (2006) Effect of duplex treatments by plasma nitriding and triode sputtering on corrosion behaviour of 32CDV13 low alloy steel. Surf. Coat. Technol. 200 6568–6571. 
Added by: Florent Boucher (2016-05-12 13:21:37)
Type de référence: Article
DOI: 10.1016/j.surfcoat.2005.11.036
Numéro d'identification (ISBN etc.): 0257-8972
Clé BibTeX: Chala2006
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Catégories: PCM
Mots-clés: 304-stainless-steel, coatings, corrosion, duplex, plasma nitriding, stainless-steel, tin, triode sputtering
Créateurs: Aida, Chala, Djouadi, Lambertin, Millet, Nouveau, Saied, Steyer
Collection: Surf. Coat. Technol.
Consultations : 2/414
Indice de consultation : 2%
Indice de popularité : 0.5%
Résumé     
This paper presents corrosion behaviour of duplex treated low alloy steel. Different kinds of samples were tested: non-treated, plasma nitrided, ZrBN-triode sputtered and ZrBN-duplex treated samples. The corrosion behaviour was evaluated by electrochemical techniques (corrosion potential and polarisation resistance evolutions versus immersion time, potentiodynamic curves). The corrosion tests were carried out in neutral aqueous saline solution (NaCl 30 g L-1), naturally aerated. The composition and the structure of layers were determined by EDS and XRD, respectively, while the morphology was observed by SEM. Experimental results showed that the corrosion current density I-corr increased with decreasing white layer thickness in plasma nitrided specimens. The nitrides epsilon-Fe2-3N and gamma-Fe4N present in the white layer are nobler than the substrate but may promote, by galvanic effect, a localised corrosion through open porosity. The duplex treated specimens (nittiding+ZrBN coating) present better corrosion protection and enable to overcome the drawbacks of both techniques, mainly the porosity of the deposited films. (c) 2005 Elsevier B.V. All rights reserved.
Added by: Florent Boucher  
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