Erosion-corrosion behaviors of amorphous Ni-P electrodeposits

With the variation of impingement velocity,sand content and sand size,erosion-corrosion behavior of amorphous Ni-P electrodeposits was investigated using model MSH erosion-corrosion equipment in this paper.Results show that the mass loss rates of erosion and erosion-corrosion increased with impingement velocity,sand content and sand size.Compared with AISI 304 SS,the mass loss rate of erosion and total mass loss rate of amorphous Ni-P electrodeposits are higher,but mass loss rate of corrosion is lower.And it also suggests amorphous Ni-P electrodeposits have good erosion-corrosion resistance.The erosion-corrosion mechanism of rod amorphous Ni-P electrodeposits is lip and fracture on its frontal side and cutting and furrow on its lateral side.