Plasma Spheroidization of Micropowders of a Heat-Resistant Alloy Based on Nickel Monoaluminide
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Spheroidization of micropowders of a heat-resistant alloy based on nickel aluminide with a particle size of 20 to 45 μm was studied. The alloy was produced by calcium hydride reduction (CHR) and elemental synthesis (SHS). The spheroidization was carried out in a flow of argon–hydrogen thermal plasma generated by a direct-current (DC) plasma torch. The degree of spheroidization of the micropowders reached 98.5%, and the flowability was 20 s/50 g.
This work was supported by the Federal Target Program “Research and Development in Priority Areas of Development of the Science and Technology Sector of Russia for 2014–2020” (unique project identifier RFMEFI57817X0260, agreement no. 14.578.21.0260).
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