Documents disponibles écrits par cet auteur

Corrosion behaviour of electrodeposited Ni/Al2O3 composite coating covered with a NaCl salt film at 800 °C / L. M. Chang in Materials and corrosion, Vol. 62 N° 10 (Octobre 2011) 

Public ISBD [article]  in Materials and corrosion > Vol. 62 N° 10 (Octobre 2011) . - pp. 920–925 Titre : Corrosion behaviour of electrodeposited Ni/Al2O3 composite coating covered with a NaCl salt film at 800 °C Type de document : texte imprimé Auteurs : L. M. Chang, Auteur ; J. H. Liu, Auteur ; R. J. Zhang, Auteur Année de publication : 2012 Article en page(s) : pp. 920–925 Note générale : Génie Mécanique Langues : Anglais (eng) Mots-clés : Corrosion  behaviour  Electrodeposit  NaCl  salt  film  Ni/Al2O3  composite  coatings Résumé : The electrodeposited Ni/Al2O3 composite coatings were prepared by direct current (DC), pulse current (PC) and pulse reversal current (PRC) deposition, respectively. The corrosion behaviour of electrodeposited Ni/Al2O3 composite coatings covered with NaCl salt films at 800 °C in air was investigated by SEM/EDX, XRD and thermogravimetric analysis. It is found that corrosion of the three types of coatings is seriously aggravated with a present NaCl salt film, and a corrosion layer with a poor adherence to the matrix has been formed. Furthermore, chlorine enrichment at the interface between the matrix and the corrosion product has been observed. The corrosion resistance of the three types of coatings has improved with the increase of Al2O3 content. The corrosion resistance of the Ni/Al2O3 composite coatings prepared by PRC deposition is the best, and that by DC deposition is the worst. The corrosion mechanism of Ni/Al2O3 composite coatings will also be discussed. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905617/abstract [article] Corrosion behaviour of electrodeposited Ni/Al2O3 composite coating covered with a NaCl salt film at 800 °C [texte imprimé] / L. M. Chang, Auteur ; J. H. Liu, Auteur ; R. J. Zhang, Auteur . - 2012 . - pp. 920–925. Génie Mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 62 N° 10 (Octobre 2011) . - pp. 920–925 Mots-clés : Corrosion  behaviour  Electrodeposit  NaCl  salt  film  Ni/Al2O3  composite  coatings Résumé : The electrodeposited Ni/Al2O3 composite coatings were prepared by direct current (DC), pulse current (PC) and pulse reversal current (PRC) deposition, respectively. The corrosion behaviour of electrodeposited Ni/Al2O3 composite coatings covered with NaCl salt films at 800 °C in air was investigated by SEM/EDX, XRD and thermogravimetric analysis. It is found that corrosion of the three types of coatings is seriously aggravated with a present NaCl salt film, and a corrosion layer with a poor adherence to the matrix has been formed. Furthermore, chlorine enrichment at the interface between the matrix and the corrosion product has been observed. The corrosion resistance of the three types of coatings has improved with the increase of Al2O3 content. The corrosion resistance of the Ni/Al2O3 composite coatings prepared by PRC deposition is the best, and that by DC deposition is the worst. The corrosion mechanism of Ni/Al2O3 composite coatings will also be discussed. DEWEY : 620.1 ISSN : 0947-5117 En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905617/abstract

Corrosion resistance of Zn–Ni/Ni and Ni/Zn–Ni compositionally modulated multilayer coating / J.-L. Chen in Materials and corrosion, Vol. 63 N° 7 (Juillet 2012) 

Public ISBD [article]  in Materials and corrosion > Vol. 63 N° 7 (Juillet 2012) . - pp. 607–613 Titre : Corrosion resistance of Zn–Ni/Ni and Ni/Zn–Ni compositionally modulated multilayer coating Type de document : texte imprimé Auteurs : J.-L. Chen, Auteur ; J. H. Liu, Auteur ; S. M. Li, Auteur Année de publication : 2012 Article en page(s) : pp. 607–613 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Corrosion  resistance;  multilayer;  Ni;  Zn–Ni  alloy Résumé : Zn–Ni/Ni and Ni/Zn–Ni compositionally modulated multilayer (CMM) coatings were prepared by dual-bath technique. The effects of layers number and sublayers order were studied. Specially, the effect of different sublayers thickness ratios with the same multilayer period (λ) on the corrosion resistance of the CMM coatings was investigated in detail. Results showed that the corrosion resistance of Ni/Zn–Ni (Zn–Ni alloy sublayer as the top layer) CMM coating was better than that of Zn–Ni/Ni (Ni sublayer as the top layer) CMM coating. The 6-layer CMM coating with the layer thickness ratio of Ni/Zn–Ni = 0.8:1.2 (λ = 2 µm) has the best corrosion resistance. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201006022/abstract [article] Corrosion resistance of Zn–Ni/Ni and Ni/Zn–Ni compositionally modulated multilayer coating [texte imprimé] / J.-L. Chen, Auteur ; J. H. Liu, Auteur ; S. M. Li, Auteur . - 2012 . - pp. 607–613. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 63 N° 7 (Juillet 2012) . - pp. 607–613 Mots-clés : Corrosion  resistance;  multilayer;  Ni;  Zn–Ni  alloy Résumé : Zn–Ni/Ni and Ni/Zn–Ni compositionally modulated multilayer (CMM) coatings were prepared by dual-bath technique. The effects of layers number and sublayers order were studied. Specially, the effect of different sublayers thickness ratios with the same multilayer period (λ) on the corrosion resistance of the CMM coatings was investigated in detail. Results showed that the corrosion resistance of Ni/Zn–Ni (Zn–Ni alloy sublayer as the top layer) CMM coating was better than that of Zn–Ni/Ni (Ni sublayer as the top layer) CMM coating. The 6-layer CMM coating with the layer thickness ratio of Ni/Zn–Ni = 0.8:1.2 (λ = 2 µm) has the best corrosion resistance. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201006022/abstract