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Electrochemical corrosion behavior of electroless Ni–P coating in NaCl and H2SO4 solutions / L. L. Wang in Materials and corrosion, Vol. 62 N° 11 (Novembre 2011) 

Public ISBD [article]  in Materials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp. 1003–1007 Titre : Electrochemical corrosion behavior of electroless Ni–P coating in NaCl and H2SO4 solutions Type de document : texte imprimé Auteurs : L. L. Wang, Auteur ; H. J. Chen, Auteur ; L. Hao, Auteur Année de publication : 2012 Article en page(s) : pp. 1003–1007 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Corrosion  behavior  EIS  Electrochemical  test  Electroless  Ni–P  coating  H2SO4  NaCl Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Electrochemical corrosion behavior of electroless Ni–P coating in NaCl and H2SO4 solutions were studied by potentiodynamic polarization curves and electrochemical impedance spectra techniques, as well as the corrosion morphology was characterized. The results indicate that electroless Ni–P coating with about 25 µm is stable in 30 days immersion in NaCl solution. Although it was corroded with prolonged immersion days, the corrosive medium has not penetrated through the coating. During the H2SO4 concentration ranging from 5 to 10%, the corrosion current density of electroless Ni–P coating increased due to the intensified anodic dissolution process; in 15% H2SO4 solution, electroless Ni–P coating shows obvious anodic passivation effect DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905575/abstract [article] Electrochemical corrosion behavior of electroless Ni–P coating in NaCl and H2SO4 solutions [texte imprimé] / L. L. Wang, Auteur ; H. J. Chen, Auteur ; L. Hao, Auteur . - 2012 . - pp. 1003–1007. Génie Mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 62 N° 11 (Novembre 2011) . - pp. 1003–1007 Mots-clés : Corrosion  behavior  EIS  Electrochemical  test  Electroless  Ni–P  coating  H2SO4  NaCl Index. décimale : 620.1 Essais des matériaux. Défauts des matériaux. Protection des matériaux Résumé : Electrochemical corrosion behavior of electroless Ni–P coating in NaCl and H2SO4 solutions were studied by potentiodynamic polarization curves and electrochemical impedance spectra techniques, as well as the corrosion morphology was characterized. The results indicate that electroless Ni–P coating with about 25 µm is stable in 30 days immersion in NaCl solution. Although it was corroded with prolonged immersion days, the corrosive medium has not penetrated through the coating. During the H2SO4 concentration ranging from 5 to 10%, the corrosion current density of electroless Ni–P coating increased due to the intensified anodic dissolution process; in 15% H2SO4 solution, electroless Ni–P coating shows obvious anodic passivation effect DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905575/abstract