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飞机主要结构材料———高强铝合金的腐蚀损伤程度的定性检测采用目视法，为了使目视法的评定结果量化或近似量化，本文通过ＥＸＣＯ模拟实验，测量了ＬＹ１２ＣＺ和７０７５Ｔ７３５１ 铝合金在不同腐蚀等级时的最大腐蚀深度；通过对数据的统计分析，建立了二者之间的对应关系，使上述２ 种高强铝合金的腐蚀等级近似量化．由此，通过腐蚀等级的评定，可以推测ＬＹ１２ＣＺ和７０７５Ｔ７３５１ 铝合金最大腐蚀深度的大致范围，从而提高了目视法的应用价值
The main structure of the aircraft structural materials --- high-strength aluminum alloy corrosion damage qualitative inspection using visual method, in order to quantify or approximate quantitative assessment of visual method, this article by EXCO simulation experiments measured LY12CZ and 7075T7351 aluminum alloy in different The maximum corrosion depth of the corrosion grade; Through the statistical analysis of the data, the corresponding relationship between the two is established so that the corrosion grades of the two high-strength aluminum alloys are approximately quantified. Thus, through the assessment of the corrosion level, the approximate range of the maximum corrosion depth of the LY12CZ and 7075T7351 aluminum alloys can be estimated, thereby increasing the application value of the visual method