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.
Keyword: liquid-phase technology
MODERN METHODS OF METAL MATRIX COMPOSITE ALLOYS PRODUCTION AND NEW APPROACHES TO REALIZATION OF REINFORCING SCHEME
In present work classification of known liquid-phase methods of manufacturing metal matrix composite alloys is offered. Methods of exogenous reinforcing provide input of prepared reinforcing particles in matrix melt. Methods of endogenous reinforcing provide formation of endogenous reinforcing phases directly in the melt due to flowing of controlled exothermic reactions between components of initial composite mixes. Distinctive features of interaction of phases at flowing of processes of liquid-phase high-temperature synthesis provide opportunity for realization of new conceptual approaches to realization of scheme of the reinforcing, based on combination of endogenous and exogenous reinforcing of a matrix alloy with particles of various nature and sizes.