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Low-Temperature Plasma Generator with Direct Arc for Plasma Remelting

  • PLASMA INVESTIGATIONS
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High Temperature Aims and scope

Abstract

An efficient low-temperature plasma generator with direct arc for plasma remelting was developed and studied with direct and reverse polarity. It has an expanding nozzle channel and the remelted metal acts as a second electrode. An efficiency of ≈90% and a long service life with a current strength of up to 200 A were obtained. It is shown that the nozzle increases arc stability at an opening angle of 12°. It is established that a super-equilibrium nitrogen content (up to 0.22%) in the molten metal can be obtained.

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Funding

The study was supported in part by the Russian Foundation for Basic Research, project nos. 19-08-0100a, 20-08-00224a.

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Authors and Affiliations

  1. Joint Institute for High Temperatures, Russian Academy of Sciences, 125412, Moscow, Russia

    M. Kh. Gadzhiev, M. V. Ilyichev, A. S. Tyuftyaev & M. A. Sargsyan

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  1. M. Kh. Gadzhiev
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  2. M. V. Ilyichev
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  3. A. S. Tyuftyaev
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  4. M. A. Sargsyan
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Correspondence to M. Kh. Gadzhiev.

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Gadzhiev, M.K., Ilyichev, M.V., Tyuftyaev, A.S. et al. Low-Temperature Plasma Generator with Direct Arc for Plasma Remelting. High Temp 58, 539–544 (2020). https://doi.org/10.1134/S0018151X20040033

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  • DOI: https://doi.org/10.1134/S0018151X20040033

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