In present research AZ91D/SiC composites were developed using advanced vacuum assisted stir casting process. The tribological properties of AZ91D/SiC composites under dry, oil and nanofluids lubricating conditions were investigated. The nanofluids were prepared by adding the silicon carbide (SiC) nanoparticles to the soluble oil with different weight percentages (1 wt.%, 1.5 wt.%, 2.0 wt.%) for experimentation. The mixing of nanoparticles with base fluid improves the tribological and thermal properties of fluids as the nanoparticles possess higher thermal conductivity than base fluids. The thermal conductivity of SiC nanofluids was evaluated. The wear surfaces under different lubricating conditions (dry, oil and nanofluids) were also analyzed with FESEM. The findings of the study reveal that there was a remarkable enhancement in tribological properties (wear and coefficient of friction) when SiC nanoparticles were added to soluble oil. Furthermore, the selected samples were analyzed using energy-dispersive X-ray spectroscopy (EDS), scanning electron microscope (SEM).

在目前的研究中，采用先进的真空辅助搅拌铸造工艺开发了AZ91D / SiC复合材料。研究了AZ91D / SiC复合材料在干，油和纳米流体润滑条件下的摩擦学性能。通过将碳化硅（SiC）纳米颗粒添加到具有不同重量百分比（1重量％，1.5重量％，2.0重量％）的可溶性油中进行实验来制备纳米流体。纳米颗粒与基础流体的混合改善了流体的摩擦学和热学性质，因为纳米颗粒具有比基础流体更高的导热率。评价了SiC纳米流体的热导率。还使用FESEM分析了在不同润滑条件（干燥，油和纳米流体）下的磨损表面。研究发现表明，将SiC纳米颗粒添加到可溶性油中后，摩擦学性能（磨损和摩擦系数）显着提高。此外，使用能量色散X射线光谱仪（EDS），扫描电子显微镜（SEM）分析所选样品。