1.前言孔蚀和缝隙腐蚀是在不锈钢等钝态金属上产生的局部腐蚀.孔蚀大多是在金属处于钝态的情况下产生的,即在金属的某一部位上产生点状的深孔腐蚀.同样,缝隙腐蚀也大都是在金属处于钝态的情况下发生的,它在金属与衬垫物等接触部分的狭小缝隙处产生腐蚀.它们都是由于钝化后的金属与C1~-离 1. Introduction Pitting and crevice corrosion are localized corrosion on passive metals, such as stainless steels, which are mostly produced when the metal is in a passive state, ie, a spot-like deep hole is created in one part of the metal Similarly, crevice corrosion is also mostly in the passive state of the metal, which causes corrosion at narrow gaps in the contact areas of metals and gaskets, etc. Both of them result from the corrosion of the passivated metal with C1- from