Arduino based temperature measurement in Ni-α Al2O3 nano composite coating under dry sliding wear conditions

The present work represents the use of thermal based IR sensor camera with Arduino technology. Temperatures generated due to micro contacts during dry sliding wear conditions in different conditions are of higher importance in analyzing the surface failure. The adhesive strength, specific wear rate and temperature field analysis on the surface of the nano composite coating are studied for two different coating thickness samples. The nano α-Al₂O₃ particles of 40 nm size are used as secondary phase particles in the Ni matrix coating. The scratch test was carried out to study the adhesive strength of the coating and pin-on-disc for wear studies. An integrated circuit with AMG8833 sensor with Arduino uno board is used for the measurement of the temperature and heat map on the surface. The coating is carried out by electro co-deposition technique. The microstructure and composition analysis are carried out by scanning electron microscopy and energy dispersive X-ray analysis. The results show the uniform distribution of the coating particles on the Al6061 substrate with good adhesive strength for the both the coatings. The specific wear results indicate resistance improved by 43.16 % for the 226.32 μm coating. The highest temperature of the debris was found to be 72.6 °C.