在 316L 和 2205 不锈钢上形成的被动电影的半导体性质被电气化学的阻抗光谱学(EIS ) 在高温度的醋酸学习。结果比 316L 的,和在 316L 和 2205 不锈钢上形成的被动电影分别地显示出 p 类型和 n 类型半导体行为证明 2205 的腐蚀电阻高。破坏并且被动电影自行修整被使用经常的当前的极化方法学习。当破坏比批评程度低或它不做时,结果证明为 316L,自行修整的过程将发生;为 2205,自行修整的过程仅仅在破坏在象 316L 的一样的程度的一短时间发生了。
Semiconductor properties of the passive films formed on 316L and 2205stainless steel were studied by Electrochemical Impedance Spectroscopy (EIS) in the high-temperature acetic acid. The results showed that the corrosion resistance of 2205 was higher than that of 316L, and the passive films formed on 316L and 2205 stainless steel showed p-type and n-type semiconductor behavior, respectively. Destruction and self-repairing of passive films were studied by using the constant current polarization method. The results showed that for 316L, the self-repairing process would occur when the destruction was lower than the critical extent or it would not do; for 2205, the self-repairing process only happened in a short time when the destruction was in the same extent as 316L.