Spheroidization of powder compositions based on refractory metals (review)

Part 2
Burkovskaya N.P., Bobrovkiy A.P., Efimochkin I.Yu., Bolshakova A.N.
Burkovskaya N.P., Bobrovkiy A.P., Efimochkin I.Yu., Bolshakova A.N. Spheroidization of powder compositions based on refractory metals (review). Part 2 // Proceedings of VIAM. 2023. No. 2. DOI: 10.18577/2307-6046-2023-0-2-101-112. URL: https://test.viam.ru/en/journal/2023/2/9
Keywords
metal composite material, spheroidization, refractory metal, thermal plasma, granule, additive manufacturing, refractory material, tungsten, high-enthalpy alloys
Abstract

The second part of the article presents a review of scientific and technical literature in the field of spheroidization of powder compositions based on tungsten. Due to the high melting point of refractory metals, it is impossible to obtain products of complex shape from such metals and their alloys by traditional methods (for example, by casting or using powder metallurgy), in comparison with the capabilities of additive technologies. To obtain metal powders of tungsten or compositions based on it, which meet the requirements of additive laser technologies, the most promising technology is the plasma treatment of metal powders.

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