X-RAY DIFFRACTION ANALYSIS OF THE ADDITIVE PRODUCTS OF ELECTRICAL DISCHARGE MACHINING OF COBALT POWDERS

The main advantage of the technology of electroerosion dispersion is the use of waste as raw materials, which is much cheaper than the clean components used in traditional technologies. In addition, this technology is powder, which allows powder-alloys.

The widespread use of the method of electroerosion dispersion for the processing of metal waste into powders for their reuse and application in additive technologies is constrained by the lack of scientific and technical literature full information on the effect of the initial composition, modes and medium on the properties of powders and technologies of practical application. Therefore, the development of technologies for the reuse of electroerosion powders and evaluation of the effectiveness of their use requires complex theoretical and experimental studies.

The aim of this work was to carry out x-ray diffraction analysis of the additive products of electrical discharge machining of cobalt powders.

For the proposed studies selected waste cobalt alloy brand CHMS "CELLET". Butyl alcohol (butanol-1) was used as a working liquid. To obtain the cobalt powders used for the installation of AED dielectric materials. Dispersion parameters: voltage 100 V, capacity 48 UF, pulse repetition rate 120 Hz.

The phase composition of the samples was studied by x-ray diffraction using Rigaku Ultima IV diffractometer in Cu-Ka radiation (wavelength λ = 0.154178 nm) using Soller slots.

According to the results of studies of x-ray diffraction analysis of additive products obtained from powders made by electroerosion dispersion of cobalt-chromium waste, it was experimentally established that the main phases in sintered samples are Co, Cr and Co₃C.

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