Documents disponibles écrits par cet auteur

Effect of Ag addition on the corrosion properties of Sn-based solder alloys / Q. V. Bui in Materials and corrosion, Vol. 61 N° 1 (Janvier 2010) 

Public ISBD [article]  in Materials and corrosion > Vol. 61 N° 1 (Janvier 2010) . - pp. 30-33 Titre : Effect of Ag addition on the corrosion properties of Sn-based solder alloys Type de document : texte imprimé Auteurs : Q. V. Bui, Auteur ; N. D. Nam, Auteur ; B.-I. Noh, Auteur Année de publication : 2010 Article en page(s) : pp. 30-33 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Alloy;  corrosion;  intermetallic  compounds;  lead  free  solder;  microstructure Résumé : Corrosion properties of three different Sn-Ag lead free solder alloys have been investigated in 0.3 wt% Na2SO4 solution as corrosive environment. As cast solder alloy was analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Volume fractions of the Ag3Sn in the solders were determined by image analysis technique. Pitting potential and corrosion potential for the alloys were determined by potentiodynamic tests. Electrochemical impedance spectroscopy (EIS) was carried out to measure the film and charge transfer resistance. Alloys with lower Ag content have been found as better corrosion resistance material. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905237/abstract [article] Effect of Ag addition on the corrosion properties of Sn-based solder alloys [texte imprimé] / Q. V. Bui, Auteur ; N. D. Nam, Auteur ; B.-I. Noh, Auteur . - 2010 . - pp. 30-33. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 61 N° 1 (Janvier 2010) . - pp. 30-33 Mots-clés : Alloy;  corrosion;  intermetallic  compounds;  lead  free  solder;  microstructure Résumé : Corrosion properties of three different Sn-Ag lead free solder alloys have been investigated in 0.3 wt% Na2SO4 solution as corrosive environment. As cast solder alloy was analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Volume fractions of the Ag3Sn in the solders were determined by image analysis technique. Pitting potential and corrosion potential for the alloys were determined by potentiodynamic tests. Electrochemical impedance spectroscopy (EIS) was carried out to measure the film and charge transfer resistance. Alloys with lower Ag content have been found as better corrosion resistance material. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.200905237/abstract

Effect of aluminum on the corrosion resistance of low-alloy steel in 10 wt% sulfuric acid solution / N. D. Nam in Materials and corrosion, Vol. 63 N° 11 (Novembre 2012) 

Public ISBD [article]  in Materials and corrosion > Vol. 63 N° 11 (Novembre 2012) . - pp. 1004–1010 Titre : Effect of aluminum on the corrosion resistance of low-alloy steel in 10 wt% sulfuric acid solution Type de document : texte imprimé Auteurs : N. D. Nam, Auteur ; W. C. Kim, Auteur ; J.-G. Kim, Auteur Année de publication : 2014 Article en page(s) : pp. 1004–1010 Note générale : Génie mécanique Langues : Anglais (eng) Mots-clés : Acid  corrosion;  aluminum;  electrochemical  impedance  spectroscopy;  low-alloy  steel;  potentiodynamic Résumé : The aqueous corrosion behavior of low-alloy steel with aluminum contents was examined in a 10 wt% H2SO4 (pH 0.13) solution using electrochemical techniques and surface analyses. The corrosion resistance of the new alloy steel was evaluated in terms of electrochemical parameters, such as passive current density, film, and charge transfer resistances. The results showed that a high Al content in the steel imparted better passivation behavior resulting in a lower corrosion rate. It related to the enrichment of iron carbonate and hydrocarbon by the dissolution of the carbide phase. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201106351/abstract [article] Effect of aluminum on the corrosion resistance of low-alloy steel in 10 wt% sulfuric acid solution [texte imprimé] / N. D. Nam, Auteur ; W. C. Kim, Auteur ; J.-G. Kim, Auteur . - 2014 . - pp. 1004–1010. Génie mécanique Langues : Anglais (eng) in Materials and corrosion > Vol. 63 N° 11 (Novembre 2012) . - pp. 1004–1010 Mots-clés : Acid  corrosion;  aluminum;  electrochemical  impedance  spectroscopy;  low-alloy  steel;  potentiodynamic Résumé : The aqueous corrosion behavior of low-alloy steel with aluminum contents was examined in a 10 wt% H2SO4 (pH 0.13) solution using electrochemical techniques and surface analyses. The corrosion resistance of the new alloy steel was evaluated in terms of electrochemical parameters, such as passive current density, film, and charge transfer resistances. The results showed that a high Al content in the steel imparted better passivation behavior resulting in a lower corrosion rate. It related to the enrichment of iron carbonate and hydrocarbon by the dissolution of the carbide phase. En ligne : http://onlinelibrary.wiley.com/doi/10.1002/maco.201106351/abstract