INFLUENCE OF TYPES OF MECHANOACTIVATION ON WC ALLOYS

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Abstract

This article reviews studies on the effect of mechanical activation (MA) on tungsten carbide-based alloys. MA is widely used in the field of materials science and is aimed at changing the physicomechanical properties of additives in order to increase their reactivity. WC-based hard alloys are widely used in various industries, as they have excellent mechanical properties, exceptional wear resistance, high strength and thermal stability. In this regard, tungsten carbide-based hard alloys are most suitable for the production of cutting tools. In addition, the article provides an analysis of complex types of mechanical activation used in various studies. The effect of types of mechanical activation on the physicomechanical properties of the obtained alloys is also considered. An analysis of the optimal parameters for obtaining hard alloys from powder samples pre-mechanically activated by the spark plasma sintering (SPS) method was carried out, which allows achieving high density and strength of materials. Special attention is also paid to studying the effect of mechanoactivation time and subsequent spark-plasma sintering on the microstructure and mechanical properties of tungsten carbide alloys. Understanding the relationship between mechanoactivation time and the properties of the resulting alloys is crucial for optimizing the production processes of tungsten alloys used in various industrial applications.