STUDY OF EFFECT OF NANOCRYSTALLIZATION ON PITTING CORROSION OF ZINC BY STATISTICAL METHOD
利用随机方法研究纳米化对纯锌点蚀行为的影响

Pulse electrodeposition was used to deposit nanocrystalline(NC)zinc coating on A3 steel from a citric acid bath.The grain size and preferential orientation of grains of the coatings were determined by X-ray diffraction.Pitting corrosion behavior of the NC zinc coating was investigated by using potentiostatic and potentiodynamic polarization methods in 0.5 mol/L NaCl(pH=12)solution.Pitting corrosion behavior was characterized by pitting potential,pitting initiation time as well as the stable pit growth rate,...