The Results of the Study of a New BVTS Made on the Basis of an Electroerosive Powder Material Obtained from Carbonitride Alloy Waste

Purpose. Conducting an experiment aimed at the study of new tungsten-free hard alloys obtained on the basis of electroerosive tungsten-free carbide powder materials dispersed in a carbon-containing working fluid (kerosene lighting).

Methods. Spark plasma sintering systems SPS 25-10 Thermal Technology were used to obtain new tungsten-free hard alloys. Electroerosive tungsten–free carbide powder materials obtained by dispersing carbonitride alloy waste in a carbon-containing working fluid - lighting kerosene were selected as the material. After obtaining a sintered sample of a new tungsten-free hard alloy, studies of its elemental and phase compositions were carried out using an energydispersion X-ray analyzer from EDAX, built into a scanning electron microscope QUANTA 600 FEG and an X-ray diffractometer Rigaku Ultima IV.

Results. During the study, it was experimentally established that the main elements of the new alloy are Ti, Ni, Mo and C, which directly depends on the composition of the electroerosion powder. Analysis of the diffractogram of the phase composition of a new tungsten-free hard alloy obtained on the basis of an electroerosion powder showed the presence of titanium carbide phases TiC, as well as molybdenum nickelide MoNi₃ and pure nickel Ni and molybdenum Mo, which is also directly related to the phase composition of the electroerosion charge.

Conclusion. The obtained experimental data results allow us to conclude that the elemental and phase compositions of new tungsten-free hard alloys obtained by sintering an electroerosive powder material dispersed in a carbon- containing medium from carbonitride tungsten-free alloy waste depend on the composition of the starting material (charge).

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