Synthesis of the Ni-Al coatings on different metallic substrates by mechanical alloying and subsequent laser treatment

The microstructure, morphology, micro hardness and electrochemical properties of the deposited Ni-Al coating on the surface of hypoeutectoid steel, Nickle, Aluminum and Titanium substrates were analyzed by scanning electron microscopy, X-ray diffraction, micro hardness and electrochemical analysis. In this study the Ni-Al coating was produced by mechanical alloying method using a self-constructed vibratory ball mill with subsequent laser treatment. The approximate thickness of the coating was about 100 μm. The conditions of laser treatment, allowing to obtain Ni-Al intermetallic coating on the pre-alloyed by mechanical cladding substrates, were determined.