The Paton Welding Journal, 2024, #1, 32-35 pages
Nickel scrap recycling by electron beam melting method
S.V. Akhonin1, V.O. Berezos1, O.G. Erokhin2, O.O. Kotenko2, M.I. Medvedev3, M.G. Lyashenko4
1E.O. Paton Electric Welding Institute of the NASU.
11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine. E-mail: titan.paton@gmail.com
22SC «SPC «Titan» of the E.O.Paton Electric Welding Institute of the NAS of Ukraine».
26 Raketna str., 03028, Kyiv, Ukraine. E-mail: titan.paton@gmail.com
3Ukrainian State University of Science and Technologies.
2 Lazaryan Str., 49010, Dnipro, Ukraine. Е-mail: michael.medvedev4747@gmail.com
4«DZST» Ltd.
1 Horyanivska Str., Horyanivske vil., 52035, Dnipropetrovsk region, Ukraine. Е-mail: mirdzst@i.ua
Abstract
Experimental-industrial melting of low-grade nickel scrap was conducted to obtain nickel ingots of not lower than NP2
grade, which are furtheron used to produce semi-finished products in the form of hot- and cold-formed seamless pipes,
including capillary, thin-walled and particularly thick-walled, rings, squares, hexagons, etc. It is shown that during electron
beam melting a significant removal of impurity elements from the nickel scrap occurred, and metal quality began
to correspond to nickel grade not lower than NP2. In order to further study the produced ingot quality, comprehensive
research work was performed on manufacturing semi-finished products in the form of elongated soft rods of 40 mm
diameter and wire of 3 mm diameter. It was determined that mechanical properties of semi-finished products from EBM
nickel fully meet the standard requirements. It is shown that electron beam melting is an efficient method of producing
nickel ingots from secondary raw materials, as it allows ensuring a high level of the produced material quality, and the
semi-finished product quality fully meets the standard requirements by chemical composition, structure and mechanical
properties. 9 Ref., 2 Tabl., 6 Fig.
Keywords: electron beam melting, electron beam unit, nickel, melting, ingot, scrap, refining
Received: 31.10.2023
Received in revised form: 07.12.2023
Accepted: 16.01.2024
References
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Suggested Citation
S.V. Akhonin, V.O. Berezos, O.G. Erokhin, O.O. Kotenko, M.I. Medvedev, M.G. Lyashenko (2024) Nickel scrap recycling by electron beam melting method.
The Paton Welding J., 01, 32-35.