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- W4244765780 abstract "Among the well-known repair technologies for restoring bronze parts, there are practically no technologies using metal powders from non-ferrous metals. Electroerosive dispersion is an energy-efficient process that makes it possible to obtain powdered copper and bronze from machine-building waste with lower costs and environmental impact. (Research purpose) The research purpose is in evaluating the physical and mechanical properties of bronze powders obtained by electroerosive dispersion from machine-building waste, and justifying the possibility of their application in the technologies of repair and restoration of parts. (Materials and methods) Authors received material for research on their own experimental facilities of the Nano-Center Central Research Center. Authors used an inverted metallographic microscope Olympus GX-51, a TESCAN VEGA II scanning electron microscope with an INCA Energy 350 X-ray spectral analysis system, a Microtrac Bluewave laser particle size analyzer, a Niton XL3t GOLDD+ X-ray fluorescence spectrometer, and a KMT-1 microhardness meter. (Results and discussion) The article presents qualitative and quantitative indicators of the bronze powder obtained by electroerosive dispersion, and the properties of this powder were evaluated for a specific method of production. The article presents granulometric composition of the powder, the shape and morphology of the particles, the fractional composition, microhardness and chemical composition. (Conclusions) In the studied powder, particles with a regular spherical shape prevail. The decrease in microhardness is explained by the recrystallization process. Differences in the chemical composition are explained by the interaction with the working fluid and various elements of the installation structure. Powder material obtained from bronze waste by electroerosive dispersion mostly corresponds to the parameters of the source metals and is suitable for the restoration and repair of parts." @default.
- W4244765780 created "2022-05-12" @default.
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- W4244765780 date "2020-12-01" @default.
- W4244765780 modified "2023-10-16" @default.
- W4244765780 title "10.22314/2618-8287-2020-58-4-148-156" @default.
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- W4244765780 doi "https://doi.org/10.22314/2618-8287-2020-58-4-148-156" @default.
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