.

ISSN 2063-5346
For urgent queries please contact : +918130348310

DRY SLIDING WEAR BEHAVIOUR OF ELECTRODEPOSITED NANO COATING AT ROOM TEMPERATURE

Main Article Content

C R Raghavendra, Jhansilakshmi K P, Sriharsha A M, Vinay S S
» doi: 10.53555/ecb/2023.12.Si13.218

Abstract

Electrodeposition is the proven technology in enhancing the surface properties in light of improving the life of substrate material. The nano hard particles of Al2O3 embedded in the Ni matrix are proved to increase in corrosion and wear resistance. The present work concentrates on the electrodeposition of Ni-α-Al2O3 nano composite coating on Al6061 substrate. In order to achieve the better adhesive strength zincating (electroless) process is carried out on the substrate material. Further work is carried out to study the influence of wear parameters viz., normal load, sliding speed, and sliding distance on the wear rate. The experimentation is carried out for 20 set of trails taken by central composite design (RSM) which is considered by response surface methodology (RSM). The three wear parameters mentioned above are considered as the parameters and are taken in five levels which are calculated by the value of α varied between the limits -1.682 to +1.682. The ANOVA and regression analysis reveals that the normal load is the most influencing factor followed by distance and the speed. The morphology of coating and worn-out surfaces also shows that uniform distribution of nano Al2O3 particles and their presence has resulted in increased wear resistance. Normal load applied and interaction effect of load with speed is found to be more influencing on wear rate.

Article Details