employee from 01.01.2011 until now
Engel's, Saratov, Russian Federation
student from 01.01.2025 until now
Engels, Saratov, Russian Federation
This article describes the influence of the electrolyte composition and cathodic density of current on the process of electrodeposition of an iron coating. An analysis of periodical and patent literature [1-15] proves a big enough interest to the iron plating. However, to improve the physicochemical and mechanical properties of the coating, additional treatment of the electrodeposited iron by nickel or chromium coating is required. The usage of nickel plating and especially chromium plating electrolytes is associated with high energy costs due to the low current outputs of chromium, as well as a high environmental impact on the environment (the salts used are classified as hazard class 1, and industrial electrolytes are highly concentrated). The development of technological processes that ensure the formation of coatings with a given set of properties and are characterized by a lower environmental hazard during production is the actual problem. Improving the environmental friendliness of galvanic production can be ensured by the use of polyfunctional compounds in the composition of electrolyte, which will help to reduce the number of components in the solution and, thus, reduce the environmental hazard and increase the efficiency of the process. The aminoacetic acid (glycine) can be used as a promising additive in electrolytes of iron plating and deposition of iron-group metal alloys, as it simultaneously able to exhibit buffering, complexing, surface-active, and electrically conductive properties. The aim of this work is to study the compositions of electrolyte and electrolysis modes for depositing an iron coating, followed by the use of the developed technological conditions in the process of the electrodeposition of alloys based on it. The influence of electrodeposition process parameters and electrolyte composition on the magnitude of the stationary potential of the steel electrode and the electrode’s polarization capacitance, the deposition rate, the current efficiency (metal yield) and the surface morphology have been studied. It was found that during iron electrodeposition in potentiostatic mode, a higher current efficiency is achieved with the simultaneous presence of glycine and citric acid at a potential of -1100 mV.
ELECTRODEPOSITION, IRON PLATING, STEEL 3, ELECTROLYTE, CURRENT DENSITY, CURRENT EFFICIENCY
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