Estudo da eletrodeposição da liga Ni-P-W.

Abstract

The electrodeposition of a metal or its alloys are currently of great importance in various fields of engineering and technology, such as corrosion protection coatings, electrocatalytic systems, energy storage, among others. For electrodeposition process thin films can be obtained from metal oxides with very specific properties as defined composition, morphology modification, increased corrosion resistance, and increased hardness of the coating. Thus, techniques for obtaining electrodeposition coatings are widely studied with the objective of obtaining new materials, thereby studying the variables that influence the process of obtaining these coatings, such as current density, electrolyte temperature, electrolyte bath composition, complexing agents, pH and others. The aim of this study was to obtain Ni-PW coatings and evaluate the Tungsten percentage obtained in deposits in obtaining this alloy process by the electrodeposition technique, in order to obtain corrosion-resistant alloys and amorphous, so this methodology was used for the bath and substrate preparation, and as an optimization tool has been used a full factorial design associated with response surface methodology.