The present work concentrates on the nanocomposite coating on the mild steel substrate. The mild steel substrate demands good surface preparation in order to have better adhesive strength of coating. In the light of this, surface is grinded and cleaned later followed by rinsing. In this work, Ni-Al 2 O 3 composite coating was successfully coated on mild steel (AISI 1018) substrate. The study on different wear parameters on the specific wear rate is carried on. The experimental design is carried out with 20 trails as per central composite design considering normal load, sliding speed and sliding distance on the samples. The morphology of surface after coating and wear analysis is studied. The results revealed higher wear resistance by the presence of nano-Al 2 O 3 particles in the Ni matrix composite coating. The effect of normal load and its interaction with sliding distance are found to be more effective on specific wear rate. The abrasive nature of wear is observed due to the presence of hard Al 2 O 3 nanoparticles embedded in the Ni matrix. The chemical composition and distribution of particle analysis is carried out by SEM and EDS micrograph.
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