2020 №12 (04) DOI of Article
2020 №12 (06)

The Paton Welding Journal 2020 #12
The Paton Welding Journal, 2020, #12, 34-39 pages

Plasma transferred arc surfacing of composite alloys with separate feed of tungsten carbides and matrix alloy

A.I. Som and B.A. Halahuz

Plasma-Master Co., Ltd. 52 Popudrenko Str., 02094, Kyiv, Ukraine. E-mail:

Various combinations of separate feeding of cast spherical tungsten carbides and matrix alloy into the surfacing zone have been investigated. It has been established that when a self-fluxing nickel-based alloy is used as a matrix, the most stable surfacing process is achieved if tungsten carbides are fed through the axial bore in the focusing nozzle, and the matrix alloy comes through two channels located diametrically opposite to each other at its end. Ref. 6, 1 Table, 11 Figures.
Keywords: plasma transferred arc surfacing, tungsten carbides, spherical tungsten carbides, self-fluxing alloy, matrix, carbide distribution, wear resistance, microhardness

Received 02.12.2020


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