Abstract—Automated argon arc surfacing of silicon bronze wire on titanium items providing production of heat- and wear-resistant coatings based on intermetallic copper titanium alloys was proposed. The automated argon arc surfacing was studied using copper-based filler wire of solid cross section containing up to 3 wt % silicon and titanium samples, grade VT1-0. In the course of surfacing in the considered range of modes, the coatings based on titanium copper alloys doped with silicon were obtained on the surface of samples. In this case, the copper content was 9–40 wt %, and the silicon content was 0.3–1.5 wt %. The studies revealed the influence of surfacing modes on the parameters and quality of formation of surfaced coatings as well as their chemical and phase composition, structure, and properties. The hardness and resistance of the produced samples against abrasive wear was analyzed. The heat resistance of the surfaced coatings was tested at 800°C for 250 and 500 h. The wear resistance and heat resistance as a function of chemical composition of the coatings were determined.
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This work was supported by the Russian Foundation for Basic Research, project no. 17-48-630361 р_а.
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Kovtunov, A.I., Semistenova, T.V., Ostryanko, A.M. et al. Investigation of Formation of Titanium–Copper Coatings upon Argon Arc Surfacing of Silicon Bronze on Titanium. Inorg. Mater. Appl. Res. 10, 1235–1238 (2019). https://doi.org/10.1134/S2075113319050162
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DOI: https://doi.org/10.1134/S2075113319050162