| abstract |
Disclosed is a coating method for forming a film excellent in high-temperature oxidation resistance and corrosion resistance by a simple process that does not cause deformation or structural change in a substrate, has a short manufacturing time, and low manufacturing costs. A coating method includes an MCrAlY powder (wherein M represents at least one element selected from Ni and Co) in an electrolyte containing A ions (A represents Co or Ni). , A at least Ni when A is Co, and at least Co when A is Ni. Using the rotating electrode device 10 having the cylindrical rotating electrode and the nonwoven fabric layer 31 covering the surface of the cylindrical rotating electrode, electrolyzing while rolling the cylindrical rotating electrode whose surface of the alloy substrate is coated with the nonwoven fabric layer, A composite coating layer is formed on the surface of the alloy substrate. [Selection] Figure 1 |