Influence of Compacting Pressure and Sintering Temperature Effect on Microstructure Characteristics and Tribological Performance of Ni-Cr-MoS₂ Based Composite

Ni–Cr–MoS 2 -based composite’s microstructure and wear behavior were examined in relation to compacting pressure and sintering temperature. The tribological performance of Ni-Cr–MoS 2 composite against En32 martial is examined in this research in relation to the nodule count, particle count, and average area depending on the compacting pressure and sintering temperature. The green pallets were cylindrical in shape and had a diameter of 12.5[Formula: see text]mm × 30[Formula: see text]mm. They were pressed at room temperature (28 ∘ C) with axial pressures of 220[Formula: see text]MPa, 275[Formula: see text]MPa, and 330[Formula: see text]MPa, then sintered in two batches at different sintering temperatures of 900 ∘ C and 1000 ∘ C. By using Image analysis, the amount of nodules, their size, particle counts, particle sizes, and lubricant flakes of developed composite are investigated. The typical nodule size ranges from 46 [Formula: see text]m to 60 [Formula: see text]m, and the average nodule percentage is between 67 and 79 present in Ni–Cr–MoS 2 -based composite. Particle counts ranged at present from 29 to 516 depending on the sintering temperature and compacting pressure. Up to 1.1472 [Formula: see text]m, lubricant flake lengths were nearly the same for composite for the different compacting pressure and sintering. With varying compacting pressures and sintering temperatures, the coefficient of friction and wear rate varied for the developed Ni–Cr–MoS 2 composite. The impact of the nodule, nodule counts, particle and particle size is also present on the developed composites for friction and wear. Minimum wear rate observed for composite sintered was under 1000 ∘ C temperature, and maximum wear rate was 7.55E[Formula: see text] mm 3 /Nm for low compacting pressure and 900 ∘ C sintering temperature.