Funct. Mater. 2022; 29 (3): 377-380.
Influence of the rhenium alloying on the wear resistance of Co-NbC, Ni-NbC eutectic alloys in high-temperature fretting-wear conditions
1National Aviation University, 1 Liubomyra Guzara Ave., 03058 Kyiv, Ukraine 2G.V.Kurdyumov Institute for Metal Physics, National Academy of Sciences of Ukraine, 36 Academician Vernadsky Boulevard, 03142 Kyiv, Ukraine
The paper presents the results of comparative tests for wear resistance under conditions of high-temperature fretting-wear of the HTN-62 industrial alloy with a standard set of alloying elements Cr, Al, W, Fe, and experimental alloys: HTN-63 (Co-NbC system) and HTN-66 of (Ni-NbC system), alloyed with 6 mass % of rhenium. A positive effect of the Re-alloying on the wear resistance of the alloys was confirmed based on the comparative tests and microtopographical examinations of friction surfaces. Furthermore, the mechanism of the positive Re-alloying on the wear resistance has been considered.
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