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. •Ni-Al intermetallic coatings were obtained by mechanical alloying (MA) and laser treatment.•The optimal regime of laser treatment of the obtained MA coating was determinated.•Process conditions of the MA method and laser treatment not involve the overheating of the substrate.•Synthesized NiAl intermetallic coating has relatively good electrochemical properties.