Investigation of the influence of the oxide layer on the surface of particles metal-powder compositions of copper-chromium alloys on their technological properties

Peskova A.V., Bakradze M.M., Tikhonov М.М., Kuko I.S.
UDC
621.762:669.3
DOI
10.18577/2307-6046-2023-0-1-28-38
Article PDF (Russian) (1 MB)
How to cite
Peskova A.V., Bakradze M.M., Tikhonov М.М., Kuko I.S. Investigation of the influence of the oxide layer on the surface of particles metal-powder compositions of copper-chromium alloys on their technological properties // Proceedings of VIAM. 2023. No. 1. DOI: 10.18577/2307-6046-2023-0-1-28-38. URL: https://test.viam.ru/en/journal/2023/1/3
Keywords
copper alloys, powder, atomization, technological properties, bulk density, fluidity, powder oxidation, additive manufacturing
Abstract

Researches were carried out metal-powder compositions of the copper-chromium alloy system Cu–(0,5–1,0 %)Cr, obtained by the method of gas atomization. The influence of the formed oxide layer on the surface of particles on the technological properties of the powder has been researched. After the selective laser fusion, a change in the color of the powder from copper to violet was detected, as well as a formation of conglomerates, which led to a decrease in properties. Researches were carried out of fluidity, bulk density, as well as an assessment of the particle morphology were carried out metal-powder compositions before and after selective
 laser fusion.

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