Abstract
Nanocrystalline Ni and Ni–Fe alloy coatings were synthesised by brush plating using soluble anode, and the corrosion characteristics of nanocrystalline Ni, Ni–5·84%Fe and Ni–13·49%Fe were investigated by soak method and electrochemical polarisation method respectively. The nanocrystalline Ni–Fe alloy coatings showed higher hardness and smaller grain size than that of Ni coating. Ni–13·49%Fe alloy coating exhibited better corrosion resistance in 3·5 wt‐% NaCl solution than the nanocrystalline Ni coating and the Ni–5·84%Fe coating, which indicats that the corrosion resistant of nanocrystalline Ni coating can be improved by adding appropriate amount of Fe.
This work was supported by the Natural Science Foundation (grant no. E0810006) of Fujian Province, China.