DefinePK

Abstract

The use of a high-energy effect makes it possible to control the rates of heating and cooling, which, under certain conditions, leads to the production of maximum non-equilibrium structures. The control of the structure formation of materials of a given composition, in conditions far from thermodynamic equilibrium, makes it possible to provide the required durability of the working zone of the product when exposed to high contact and dynamic loads under conditions of abrasive, shock-abrasive and impact wear. Technologies that ensure the regulation of the structure formation of materials, due to the rates of heating and cooling, in conditions of high-energy heating, make it possible to use materials of a given composition to form the required set of properties, taking into account the nature of wear. The main difference between such heating and heating by external heat sources is that heating occurs directly in the metal due to the electromagnetic field created by the inductor. The aim of this work is to develop technological parameters for obtaining wear-resistant composite materials with a given set of physical and mechanical properties, obtained by the method of high-energy induction exposure using metal powders of a given composition. In the course of the work, the technological modes of obtaining layered composite materials with a given structure and properties were established, taking into account the nature of wear. The studies carried out have shown that a decrease in the time of high-energy induction exposure during the production of a composite material provides a high hardness (55-58 HRC) and wear resistance under conditions of abrasive wear. An increase in time leads to a decrease in hardness to 43-45 HRC, which increases the wear resistance when exposed to impact loads.