| 2025 №08 (06) | 2025 №08 (01) |
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.comAbstract
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
References
1. Harper, D., Gill, M., Hart, K.W.D., Anderson, M. (2002) Plasma transferred arc overlays reduce operating costs in oil sand processing. In: Proc. of Inter. Spray Conf. on YTSC 2002, Essen, Germany, May, 278-283.2. Bouaifi, B., Reichmann, B. (1998) New areas of application through the development of the high-productivity plasma-arc powder surfacing process. Welding and Cutting, 50(12), 236e–237e.
3. Som, A.I. (1999) New plasmatrons for plasma-powder surfacing. Avtomaticheskaya Svarka, 7, 44–48.
4. Som, A.I. (2004) Plasma-powder surfacing of composite alloys based on cast tungsten carbides. The Paton Welding J., 10, 43–47.
5. Renyue Yuan, Xuewei Bai, Haozhe Li et al. (2021) Effect of WC content on microstructure, hardness, and wear properties of plasma cladded Fe–Cr–C–WC coating. Materials Research Express, 8(6), 066302. DOI: https://doi.org/10.1088/2053-1591/ac0b79
6. Fischer, J. (2022) Properties and applications of Ni-resist and ductile Ni-resist alloys. 2nd Edition. www: https://nickelinstitute. org/media/8da7c3cd6014c9b/11018_properties_and_applications_of_ni-resist_alloys.pdf
7. Pereplyotchikov, E.F., Ryabtsev, I.A., Gordan, G.M. (2003) High-vanadium alloys for plasma-powder cladding of tools. The Paton Welding J., 3, 14–17.
8. Som, A.I. (2016) Iron-based alloy for plasma-powder surfacing of screw conveyors of extruders and injection molding machines. The Paton Welding J., 7, 21–25. DOI: https://doi.org/10.15407/tpwj2016.07.04)
9. Frumin, I.I. (1977) Modern types of clad metal and their classification. In: Theoretical and technological fundamentals of cladding. Clad metal. Kyiv, Naukova Dumka, 3–17.
10. Zhudra, A.P. (2014) Tungsten carbide based cladding materials. The Paton Welding J., 6‒7, 66‒71. DOI: https://doi.org/10.15407/tpwj2014.06.14
11. Yuzvenko, Yu.A., Gavrish, V.A., Marienko, V.Yu. (1979) Laboratory units for assessment of wear resistance of clad metal. In: Theoretical and technological fundamentals of cladding. Properties and tests of clad metal. Kyiv, PWI, 23-27.
12. Augustine Nana Sekyi Appiah, Oktawian Bialas, Artur Czupryński, Marcin Adamiak (2022) Powder plasma transferred arc welding of Ni‒Si‒B+60 wt% WC and Ni‒Cr‒Si‒B+45 wt% WC for surface cladding of structural steel. Materials, 15(14), 4956. DOI: https://doi.org/10.3390/ma15144956