With air-formed films the faradaic processes decreased progressively to a constant rate consistant with the increase in potential, indicating the healing of surface flaws.

• 对于空气氧化膜,电化学反应速度逐步变慢,直至达到相应于稳定钝态的恒定值,同时电位向正移动,表明膜中的微裂纹不断得到修补。