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Influence of microstructure on the corrosion resistance of hyperduplex stainless steel / S. S. M. Tavares in Materials and corrosion, Vol. 61 N° 4 (Avril 2010) 

Public ISBD [article]  in Materials and corrosion > Vol. 61 N° 4 (Avril 2010) . - pp. 313–317 Titre : Influence of microstructure on the corrosion resistance of hyperduplex stainless steel Type de document : texte imprimé Auteurs : S. S. M. Tavares, Auteur ; J. M. Pardal, Auteur ; E. Ponzio, Auteur Année de publication : 2010 Article en page(s) : pp. 313–317 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Critical  pitting  temperature;  hyperduplex  stainless  steel;  pitting  corrosion Résumé : Hyperduplex UNS S32707 is a newly developed austenitic–ferritic stainless steel. The steel contains about 27%Cr, 7%Ni, 4.5%Mo, and 0.4%N, which results in a pitting resistance equivalent factor (PRE) equal to 49. In this study, the pitting corrosion resistance of this new grade of stainless steel was investigated by varying the microstructure using different thermal processes. The critical pitting temperature measurement and cyclic polarization tests confirm the high corrosion resistance of the hyperduplex steel in the solution treated condition. However, deleterious phases form easily during thermal processing and cause a drastic decrease in the corrosion resistance. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905386/abstract [article] Influence of microstructure on the corrosion resistance of hyperduplex stainless steel [texte imprimé] / S. S. M. Tavares, Auteur ; J. M. Pardal, Auteur ; E. Ponzio, Auteur . - 2010 . - pp. 313–317. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 61 N° 4 (Avril 2010) . - pp. 313–317 Mots-clés : Critical  pitting  temperature;  hyperduplex  stainless  steel;  pitting  corrosion Résumé : Hyperduplex UNS S32707 is a newly developed austenitic–ferritic stainless steel. The steel contains about 27%Cr, 7%Ni, 4.5%Mo, and 0.4%N, which results in a pitting resistance equivalent factor (PRE) equal to 49. In this study, the pitting corrosion resistance of this new grade of stainless steel was investigated by varying the microstructure using different thermal processes. The critical pitting temperature measurement and cyclic polarization tests confirm the high corrosion resistance of the hyperduplex steel in the solution treated condition. However, deleterious phases form easily during thermal processing and cause a drastic decrease in the corrosion resistance. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905386/abstract