| 2002 №03 (06) | 2002 №03 (08) |
The Paton Welding Journal, 2002, #3, 37-41 pages
Features of pulsed-plasma alloying of the surface of iron-base alloys
Yu.N. Tyurin, M.L. Zhadkevich, B.G. Gubenko, O.V. Kolisnichenko
E.O. Paton Electric Welding Institute of the NASU 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
A technology of surface alloying, based on the use of high-speed pulsed-plasma jets and electric discharges has been studied. In this case, electric current of 3 to 5 kA is passed through the jet. Alloying material in the form of a rod or wire is fed into the plasma jet. The high speed of the metal-containing plasma jet and the interaction of its pulses with the electromagnetic field, provide mixing of the alloy with the partially-melted surface of the item. As a result, the studied coating has no pores or any clearly-defined boundary with the base.
Keywords: pulsed plasma, alloying, alloyed surface structure, alloying device
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