In order to improve the corrosion resistance of Ni60A alloy coating further, by adding chromium content in the Ni60A alloy, and the right amount of Mo, Nb, Cu and rare earth elements, a new type of high chromium nickel base alloy powder material was developed. Oxyacetylene flame spray welding technique was used to make high chromium nickel-based composite coating. The morphology, structure and composition of the high chromium nickel-based alloy coating were analyzed by SEM, EDS and XRD. The immersion test m...