Author/Authors :
aidaoui, e. université de biskra - laboratoire de physique des couches minces et applications, Algérie , ben tamam, h. université de biskra - laboratoire de physique des couches minces et applications, Algérie , guettaf tamam, e. centre de développement des energies renouvelables - laboratoire electronique des systèmes et stockage de l’energie (esse), udes, Algérie
Title Of Article :
INFLUENCE OF CURRENT DENSITY ON THE CHARACTERISTICS OF NI-CR ALLOY COATINGS
Abstract :
In the present study, Ni-Cr alloy coatings were electrodeposited on pretreated Cu substrates, from a citrate bath containing chromium sulfate salt. In order to study the effect of applied current density, Ni-Cr alloy coatings were electrodeposited at 1, 3, 5 and 8 A/dm². The characteristics of the coatings were assessed by X-ray diffraction (XRD) and microhardness tests. The corrosion results were calculated from polarization Tafel lines. XRD analyses of elaborated coatings at different applied current densities indicate the formation of NiCr and Cr3Ni2 phases. The co-deposition of chromium in Ni matrix improved the microhardness and the corrosion behavior.
NaturalLanguageKeyword :
Ni , Cr alloy coatings , Microhardness , Co , deposition , Polarization Tafel
JournalTitle :
Courrier Du Savoir
