据“防蚀技术”Vo1.29№11,P576(1980)报道一般说来,孔蚀,缝隙腐蚀等局部腐蚀在实践中危害最大。在所产生的蚀孔中,最深的蚀孔常常决定着构件的寿命。但是,即便是在同一环境下使用的构件,在材料和结构上都可能还有些不同,特别是由于腐蚀现象本身具有随机性,最大孔蚀深度的再现性是很差的。为了定量的评价这些测定值,就 According to “Anti-corrosion technology” Vo1.29 № 11, P576 (1980) reported that in general, pitting corrosion, crevice corrosion and other localized corrosion in practice the most harmful. Of the resulting pits, the deepest pits often determine the lifetime of the component. However, even materials used in the same environment may be different in material and structure, especially due to the random nature of the corrosion phenomena, and the poor reproducibility of the maximum pitting depth is poor. In order to quantitatively evaluate these measurements,