Structure and Properties of Electroerosion Powders Obtained from LS58-3 Brass Waste in Isopropyl Alcohol-Reference-Cited by-同舟云学术

Structure and Properties of Electroerosion Powders Obtained from LS58-3 Brass Waste in Isopropyl Alcohol

Published:2023-09-29 Issue:3 Volume:13 Page:34-43
ISSN:2223-1528
Container-title:Proceedings of the Southwest State University. Series: Engineering and Technology
language:
Short-container-title:jour

Author:

Ageeva E. V.¹^ORCID,Serebrovsky V. V.¹,Pereverzev A. S.¹^ORCID,Abolmasova L. S.¹^ORCID

Affiliation:

1. Southwest State University

Abstract

Purpose of research. Study of the structure and properties of powders obtained by electroerosion of the LS58-3 alloy in a carbon-containing medium - isopropyl alcohol.Methods. The process of electrical erosion of LS58-3 alloy waste was carried out on a patented installation, LS58-3 alloy waste was used as metal waste. Isopropyl alcohol, which is a carbon-containing medium, was chosen as the working fluid.Studies of the morphology and granulometric composition of the obtained particles were carried out on an electron-ion scanning microscope "Quanta 600 FEG" and a laser particle size analyzer Analysette 22 NanoTec", respectively.X-ray spectral microanalysis of powders was carried out on an energy-dispersive X-ray analyzer from EDAX (Netherlands) built into a scanning electron microscope QUANTA 200 3D (Netherlands). The phase analysis of the powders was performed on a Rigaku Ultima IV X-ray diffractometer (Japan).Results. An analysis of the morphology of the obtained powders showed that the particles are mainly spherical and elliptical in shape, as well as agglomerates.Analysis of the particle size distribution of the powder obtained using the Analysette 22 NanoTec particle size analyzer showed that the average particle size is 24 µm. This particle size was obtained in the operating mode of the installation, in which the electroerosion process proceeds stably.Analysis of the elemental composition has established that free carbon is contained on the surface of the powder particles. The remaining chemical elements Cu, Zn, Pb, Sn are distributed relatively evenly. The presence of free carbon is due to the chemical composition of the dispersion medium, which is carbon-containing.X-ray diffraction analysis of the obtained powders showed the presence of Cu3Zn, Pb, ZnO, CuO2, SnO2 phases. There are no carbide-forming elements in the composition of the alloy.It has been experimentally established that the composition, structure and properties of the charge of LS58-3 brass dispersed by electroerosion are affected by the chemical composition of the working fluid, as well as the dispersion modes.Conclusion. On the basis of the conducted experimental studies, it can be concluded that the use of electroerosive dispersion technology for the processing of LS58-3 brass waste and the production of powders based on it is relevant. It is noted that the particles of the resulting charge have a given set of properties and can be used by various methods of powder metallurgy.

Publisher

Southwest State University

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