Abstract Corrosion performance of NiCr and NiCrBSi coatings produced by APS, HVOF, HVAF was studied electrochemical measurements immersion tests in 0.5 3.5 wt.% NaCl solutions. In the measurements, performed better than coatings. The effect coating process on corrosion resistance material significantly lower that selected materials, or NiCrBSi. All showed a tendency to passivate but suffered fr...