A. M. Badamshin, V. S. Kovivchak, A. A. Krut’ko, O. Yu. Burgonova
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Abstract—The effect of a high power nanosecond ion beam on the morphology, mechanical properties, and operational characteristics of metal-cutting inserts made of a tungsten-free hard alloy of grade KNT16 (TiCN–Ni–Mo) is studied. The impact of the high power ion beam is found to lead to a significant change in the wear resistance of cutting inserts during turning of 40KhN steel rods. The optimum irradiation pulse number, at which the cutting insert undergoes the minimum wear in testing, is determined. Scanning electron microscopy allows us to find that the impact of the high power ion beam with a number of pulses of 1 to 3 leads to the formation of a homogeneous recast surface layer of the samples, which, in turn, leads to an increase in their heat resistance during holding at 800°C. The effect of the number of high power ion-beam pulses on the microhardness of irradiated samples is studied.
期刊介绍：
Russian Metallurgy (Metally) publishes results of original experimental and theoretical research in the form of reviews and regular articles devoted to topical problems of metallurgy, physical metallurgy, and treatment of ferrous, nonferrous, rare, and other metals and alloys, intermetallic compounds, and metallic composite materials. The journal focuses on physicochemical properties of metallurgical materials (ores, slags, matters, and melts of metals and alloys); physicochemical processes (thermodynamics and kinetics of pyrometallurgical, hydrometallurgical, electrochemical, and other processes); theoretical metallurgy; metal forming; thermoplastic and thermochemical treatment; computation and experimental determination of phase diagrams and thermokinetic diagrams; mechanisms and kinetics of phase transitions in metallic materials; relations between the chemical composition, phase and structural states of materials and their physicochemical and service properties; interaction between metallic materials and external media; and effects of radiation on these materials.
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