It was found that pitting rates of stainless steels in tidal zone were bigger during 1 to 4 years, after which the pittingrate diminished.
不锈钢在潮汐区暴露1至4年的点蚀速度较大，以后点蚀速度减慢。
2
The results showed that electrode wear rate was higher at beginning welds than later welds; pitting building at electrode surface accelerated electrode wear and invalidation.
结果表明初始焊接阶段电极磨损速率较大，点蚀加剧了电极磨损与失效。
3
The pitting propagation rate was evaluated by simulating occluded corrosion cell (SOCC), and corrosive characteristic of pits was studied by scanning electro microscopy (SEM) and EPMA.