Friction and wear behavior of nickel-alloy-based high temperature self-lubricating composites against Si3N4 and Inconel 718

Effects of sliding speed and testing temperature on the tribological behavior of a nickel-alloy based solid-lubricating composite

“…The detailed preparation and mechanical properties of the nickel-alloy based self-lubricating composite (NAF5) had been described elsewhere [20]. The density of NAF5 is 7.91 g/cm 3 and the mechanical properties of NAF5 are listed in Table1.…”

“…Apart from lubricating composition, the operating parameters, including speed, load, temperature and topography of surface contact [18][19][20][21], are other important aspects affecting the material's lubrication performance. Zhu et al [22] and Tyagiet et al [23] discussed the influence of velocity and load on the frictional behavior of Ni 3 Algraphene and Nickel-alloy-silver-hBN composites.…”

“…The authors had reported the tribological behavior of nickelalloy based self-lubricating composites with three different content of fluoride eutectic from RT to 800°C in previous work [20], and found that the optimal content of fluoride eutectic was 5 wt.% (namely Ni15Cr12Mo3Ti1Al-12.5%Ag-5%BaF 2 /CaF 2 composite, referred to NAF5). Also, the effect of counterface on friction behavior of NAF5 was investigated.…”

Sliding behavior and wear mechanism of iron and cobalt-based high-temperature alloys against WC and SiC balls

“…It is also seen from the cross-sectional profile of GH2132 worn scar at 400 °C that a small ridge was present at the inner edge of the sliding track caused by SiC but two ridges were engendered at both edges of the sliding track caused by WC. The prone formation of ridges at 400 °C relative to room temperature was closely related to the GH2132 softening effect at high temperature, which ameliorated the contact condition [17][18][19] to be liable to produce the localized plasticity at the edges of the wear track caused by repeated squeezing of ball against the wear zone.…”

“…ACCEPTED MANUSCRIPT10 sliding with 125 m/min under 10 N at room temperature, the 52 19. wt% Fe, 23.57 wt% Ni, 14.34 wt% Cr and 5.80 wt% O were detected on the top of piling-up GH2132 materials, and the 92.54 wt% W and 4.19 wt% Co were identified at the bottom of scars indicating that this exposed material was WC, and the 67.18 wt% Fe, 12.30 wt% Ni and 15.99 wt% Cr were found in the middle of debris.…”