Abstract:The tribological behaviour of Ni-based composite coatings on Al6061 substrate with secondary phase hard oxide particles like ZrO 2 , TiO 2 , and Al 2 O 3 at different elevated temperature conditions was compared. The composite coatings with different reinforcement of nano particles were characterized by scanning electron microscopy and X-ray diffraction technique. The higher microhardness value is reported for the Ni coating with TiO 2 particles and Al 2 O 3 particles. At higher temperature limits of 120°C and… Show more
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