Effect of Parameters of Pulse Electrolysis on Electrodeposition of Copper–Tin Alloy from Sulfate Electrolyte

Russian Journal of Electrochemistry - The effect of pulsed electrolysis on the electrodeposition of Cu–Sn alloy from the sulfate–sulfuric acid electrolyte is studied. It is shown that...     

Electrodeposition of Cu-Sn Alloy from Oxalic Acid Electrolyte in the Presence of Amine-containing Surfactants

Russian Journal of Applied Chemistry - Method of potentiodynamic polarization was used to study the electrodeposition of a copper-tin alloy from an oxalic acid electrolyte with addition of...     

Protective Action of Sodium Metavanadate Against Corrosion of AD31 Aluminum Alloy in Neutral Chloride-Containing Media

Russian Journal of Physical Chemistry A - The mechanism of corrosion of AD31 (AA6063) aluminum alloy in 0.05 M NaCl solutions containing 0.03–5 mmol/dm3 NaVO3 as an inhibitor was studied....     

Sonochemical Electrodeposition of Copper Coatings

Potentiodynamic polarization method was used to study kinetic specific features of the electrodeposition of copper under a sonochemical treatment of a sulfuric acid electrolyte. The working current densities, scattering power of the electrolyte, the structure, microhardness, and luster of the formed coatings were determined depending ultrasonic field power and the presence of a thiourea additive in the electrolyte. It was found that it is advisable to perform the sonochemical electrodeposition of copper from a sulfuric acid electrolyte with addition of 0.003 g dm^–3 of thiourea at a current density of 2 A dm^–2 and ultrasonic vibration power of 8 W dm^–3.     

Effect of Sonochemical Treatment Modes on the Electrodeposition of Cu–Sn Alloy from Oxalic Acid Electrolyte

Methods of scanning electron microscopy, potentiodynamic polarization, and X-ray diffraction analysis were used to study the kinetic features of the electrodeposition process of the copper–tin alloy from an oxalic acid electrolyte and analyze the structure, composition, and luster of coatings formed under sonochemical treatment conditions at varied power of the ultrasonic field and current load. The ultrasonic treatment with power of 8–40 W dm^–3 makes it possible to 2–8 times intensify the cathodic process and obtain coatings containing 10–15 wt % tin with luster of 20–40%. The specific content of tin in a coating being formed is nearly independent of the ultrasound power and grows with increasing the cathodic current density.     

Corrosion inhibition of magnesium alloy AZ31 in chloride-containing solutions by aqueous permanganate

In this work, corrosion of the AZ31 magnesium alloy was examined in 0.05 M NaCl solutions containing 0.01–0.150 mol/dm³ of potassium permanganate as a corrosion inhibitor. A set of electrochemical impedance spectroscopy, linear sweep voltammetry, and hydrogen evolution measurements revealed high inhibitor effectiveness at relatively high (0.150 mol/dm³) KMnO₄ concentrations. Based on data of energy-dispersive X-ray analysis, scanning electron microscopy, and Raman spectroscopy, a mechanism of the corrosion inhibition of AZ31 alloy by potassium permanganate in chloride-containing media was proposed.