The Paton Welding Journal, 2025, №08

2025 №08 (06)

2025 №08 (01)

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The Paton Welding Journal, 2025, #8, 68-74 pages

Iron-based binder alloy for plasma transferred-arc surfacing of composite alloys reinforced with cast tungsten carbides

O.I. Som

Plasma-Master Co., Ltd. 3 Omelian Pritsak Str., 03142, Kyiv, Ukraine. E-mail: info@plasma-master.com

Abstract
Five iron-based industrial alloys with different alloying systems have been studied for the purpose of using them as a binder alloy for plasma-transferred arc surfacing of composite alloys, reinforced with cast spherical tungsten carbides (relite). It is shown that hard and wear-resistant alloys, such as Sormite-1 (PG-S1) and others do not provide an overall increase in the deposited metal wear resistance. Contrarily, they reduce it, as they poorly hold the tungsten carbide grains, which break away and are removed from the friction zone together with the matrix, not contributing to the resistance to wear. Alloys of Kh18N9 type are not suitable, either, as they significantly increase their hardness and thus lower their ductility during surfacing due to additional alloying with carbon and tungsten. The best result was shown by a relatively soft copper-nickel alloy (cast iron) Ni-Resist.
Keywords: plasma transferred-arc surfacing (PTA surfacing), spherical tungsten carbides, binder alloy (matrix), wear resistance, hardness, metal formation

Received: 10.04.2025
Received in revised form: 26.06.2025
Accepted: 04.08.2025

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Suggested Citation

O.I. Som (2025) Iron-based binder alloy for plasma transferred-arc surfacing of composite alloys reinforced with cast tungsten carbides. The Paton Welding J., 08, 68-74.

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