In stagnant or slow-moving sea water, fouling may occur followed by pitting but this pitting slows down after a fairly rapid initial attack.
在停滞或缓慢移动的海水,污垢可能发生遵循由点蚀,但此点蚀减慢后一个较快的初始攻击。
2
The corrosion failure of Ni-P alloy plating was mainly caused by pitting and the process can be divided into initial stage of corrosion, propagation stage and penetration stage of pitting.
At the initial stage, the pitting cores are formed and the passive film is repaired continuously, which results in the inductive component in the electrochemical impendence spectrum.