Obtaining and Research of Additive Products from Electro-Erosive Cobalt-Chrome Powders

Evgeniy V. Ageev; O.G.  Loktionova; A.Y. Altukhov

doi:10.4028/www.scientific.net/MSF.989.801

Paper Titles

Study of the Processes of High Temperature Material Heating for Plasma Recycling
p.775

Effect of the Gas-Vortex Stabilization Method on the Plasma Cutting Quality
p.781

Influence of Electrolyte-Plasma Hardening Technological Parameters on the Structure and Properties of Banding Steel 2
p.787

Research of Electrolyte Plasma Treatment Impact on Wear Resistance and Roughness of 18HN3MA-SH Steel
p.793

Obtaining and Research of Additive Products from Electro-Erosive Cobalt-Chrome Powders
p.801

Studying Gas-Phase Flows in the Laser Exposure Zone during Selective Laser Melting
p.806

Rheological Properties and Microstructure of PH1 Stainless Steel Produced by Selective Laser Melting
p.811

Influence of the Powder Particle Size on the Denudated Zone Width at Selective Laser Melting
p.816

Investigation of Mechanical Properties of Anisotropic Materials Used in Rapid Prototyping Technologies
p.821

HomeMaterials Science ForumMaterials Science Forum Vol. 989Obtaining and Research of Additive Products from...

Obtaining and Research of Additive Products from Electro-Erosive Cobalt-Chrome Powders

Abstract:

The main requirement for powders for additive machines is the spherical shape of the particles. Such particles most compactly fit into a certain volume and provide the “fluidity” of the powder composition in the material supply systems with minimal resistance. Based on the peculiarities of the methods of obtaining spherical powders in order to obtain spherical granules of a regulated grain size, the technology of electroerosive dispersion, which is distinguished by relatively low energy costs and ecological cleanliness of the process, is proposed. The main advantage of the proposed technology is the use of waste as raw materials, which is much cheaper than the pure components used in traditional technologies. In addition, this technology is powder, which allows to obtain powder-alloys. The widespread use of the method of EED for the processing of metal waste into powders for the purpose of their reuse and application in additive technologies is hampered by the lack of complete information in the scientific and technical literature on the influence of the original composition, modes and media on the properties of powders and technologies of practical application. Therefore, the development of technologies for the reuse of EED powders and the evaluation of the effectiveness of their use requires the conduct of comprehensive theoretical and experimental studies. The purpose of this work was to obtain and study additive products from electroerosive cobalt-chromium powders of a specific particle size distribution and to study their microstructure. The granulometry of the obtained powders was determined on a laser analyzer of particle sizes “Analysette 22 NanoTec”. The microstructure of additive samples from cobalt-chromium powders (by transverse polishing) was investigated by optical microscopy on an inverted optical microscope OLYMPUS GX51. On the basis of completed studies, aimed at obtaining and studying additive products from electroerosive cobalt-chrome powders of a specific particle size distribution, and studying their microstructure, it was found that additive samples, obtained from a cobalt-chrome powder with an average particle size of 35,68 microns, have practically no pores.