尽管人们对铝及其合金的点蚀已做了广泛的研究,但点蚀起源的机理并未完全得到确认。不过,虽然目前尚无一种完整的理论来说明它,但有充分证据证明:点蚀的起源是在特定电位,即临界点蚀电位(Ep)下发生的,它具有良好的数值重现性。但过去,不少研究者对这个观点曾提出过许多反对意见。 Although pitting corrosion of aluminum and its alloys has been extensively studied, the mechanism of the origin of pitting corrosion has not been completely confirmed. However, although there is no complete theory to illustrate it, there is strong evidence that the origin of pitting occurs at a specific potential, the critical pitting potential (Ep), which has good numerical reproducibility . In the past, however, many researchers have raised many objections to this view.