Production of spherical powders on the basis of group IV metals for additive manufacturing

• Published in: Inorganic materials : applied research 2017, Vol.8 (3), p.452-458
• Main Authors: Kotlyarov, V. I., Beshkarev, V. T., Kartsev, V. E., Ivanov, V. V., Gasanov, A. A., Yuzhakova, E. A., Samokhin, A. V., Fadeev, A. A., Alekseev, N. V., Sinayskiy, M. A., Tretyakov, E. V.
• Format: Article
• Language: English
• Subjects: Additive manufacturing; Chemistry; Chemistry and Materials Science; Composite Materials; Dehydrogenation; Grinding; Hydrides; Hydrogen storage; Hydrogenation; Industrial Chemistry/Chemical Engineering; Inorganic Chemistry; Materials Science; Mathematical analysis; Optimization; Process parameters; Roundness; Shape; Spherical powders; Spheroidizing; Titanium base alloys; Zirconium; Zirconium base alloys
• ISSN: 2075-1133; 2075-115X
• DOI: 10.1134/S2075113317030157

The method of production of group IV powders for additive manufacturing is presented. Powders are produced in the hydrogenation-dehydrogenation process followed by plasma spheroidization of prepared polygonal powders. The dependence of composition of hydrides on amount of absorbed hydrogen is established for the group IV metals; it allows optimizing the technological parameters of processes for hydrogenation and grinding. It is shown that spherical powders of titanium, Ti–6Al–4V, and Zr–10% Ti of mass fractions of 40–70 μm and not less than 40 μm with calculated spheroidization level achieving 96% may be produced in Ar + 8 vol % H 2 thermal plasma flow generated by an arc-jet plasma generator. The average roundness factor is 1.01.