X-RAY SPECTRAL MICROANALYSIS OF THE ADDITIVE PRODUCTS OF THE ELECTRICAL DISCHARGE MACHINING OF COBALT POWDERS
The widespread use of EED method for processing metal waste into powders for their reuse and application in additive technologies is constrained by the lack of complete information in the scientific and technical literature on the effect of the initial composition, modes and media 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 perform x-ray spectral microanalysis of the additive products of the 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 microstructure of the samples (along the surface) was studied by scanning electron microscopy. The surface of the samples was polished and polished. Grinding produced by metallographic paper with a large (No. 60-70) and fine grain (Nos. 220-240V). With the help of energy-dispersion analyzer of x-ray radiation of EDAX, built into the raster electron microscope "QUANTA 200 3D", were obtained spectra of the characteristic x-ray radiation at various points on the surface of the sample and the cross section. According to the results of x-ray Microspectral microanalysis of additive products from electroerosion cobalt chromium powders, it was experimentally established that the main elements in them are Co, Mo and Cr.