Fabrication of high-alloy powders consisting of spherical particles from ultradispersed components

Fabrication of high-alloy powders consisting of spherical particles from ultradispersed components

It is shown that powders of a model high alloy consisting of spherical particles 25–50 μm in size can be synthesized from a starting ultradispersed powder, which is made of a mixture of the alloy components and is fabricated by the magnesiothermal reduction of metal chlorides in the potassium chlori...

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Veröffentlicht in:Russian metallurgy Metally 2017-07, Vol.2017 (7), p.547-553
Hauptverfasser: Samokhin, A. V., Fadeev, A. A., Sinayskiy, M. A., Alekseev, N. V., Tsvetkov, Yu. V., Arzhatkina, O. A.
Format: Artikel
Sprache:eng
Schlagworte:
Alloy powders
Chemistry and Materials Science
Classification
Heat treatment
Materials Science
Metal chlorides
Metallic Materials
Reduction (metal working)
Separation
Spherical powders
Spheroidizing
Thermal plasmas
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container_end_page 553
container_issue 7
container_start_page 547
container_title Russian metallurgy Metally
container_volume 2017
creator Samokhin, A. V.
Fadeev, A. A.
Sinayskiy, M. A.
Alekseev, N. V.
Tsvetkov, Yu. V.
Arzhatkina, O. A.
description It is shown that powders of a model high alloy consisting of spherical particles 25–50 μm in size can be synthesized from a starting ultradispersed powder, which is made of a mixture of the alloy components and is fabricated by the magnesiothermal reduction of metal chlorides in the potassium chloride melt. The synthesis includes the stages of microgranulation of an ultradispersed powder, heat treatment of microgranules, classification of the microgranules with the separation of microgranule fraction of 25–50 μm, spheroidization of the separated fraction in a thermal plasma flow, and classification with the separation of a fraction of micro- and submicrometer-sized particles.
doi_str_mv 10.1134/S0036029517070138
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subjects Alloy powders
Chemistry and Materials Science
Classification
Heat treatment
Materials Science
Metal chlorides
Metallic Materials
Reduction (metal working)
Separation
Spherical powders
Spheroidizing
Thermal plasmas
title Fabrication of high-alloy powders consisting of spherical particles from ultradispersed components
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