The paper presents a study of the influence of iron impurities in zinc and its alloys on their basic electrochemical properties. The research investigates different alloying elements and their effect on the electrochemical properties, especially the coefficient of use efficiency (CUE).
Cast zinc alloys are widely used in various industries of national economics, including the manufacturing of products for tribotechnical applications. There are such approaches to solving the problem of improving the tribotechnical characteristics of zinc alloys, as the search for new alloy compositions and optimization of existing ones. However, the capabilities of traditional alloys to achieve the desired properties of products that meet the growing demands almost exhausted at present time. One of the most effective ways to improve the tribotechnical properties of zinc alloys is realization of the principle of reinforced heterophase structure, which is the basis of creation of composite alloys.
The characteristics of types of process of liquation refining of metal melts from impurity elements is given. Efficiency of extraction- crystallization-liquation refining (ECL-process) of magnesium melts with use of additive elements is shown. The results of experimental studies on the refining of magnesium from metal impurities using additives Ti, Zr and Mn are in good agreement with the calculated data.
The highest efficiency of ECL-process of refining is achieved when cleaning of magnesium from impurities of iron by titanium additives.