中文摘要：

铝合金 2024-T3 的腐蚀行为与混合物说出 8-hydroxy-quinoline (8HQ ) 和 8-hydroxy-quinoline-5-sulfonic 酸(HQS ) 的二荧光喹啉在 3.5% NaCl 答案被学习。开的电路潜力(OCP ) 测试结果显示两混合物由在电极表面上吸附改变合金腐蚀潜力。极化大小证明 8HQ 是由堵住金属表面的活性部位的一个混合类型禁止者，当 HQS 是由激活阴极的反应的一台腐蚀加速器时。在电气化学的阻抗光谱学(EIS ) 的阻抗参数的变化与金属表面上的 8HQ 的吸附有关，它导致保护的层的形成。没有另外的有机化合物，在有 HQS 的答案的阻抗图类似于那张。保护的层的形态学和作文被学习由用SEM/EDS.，结果证实 8HQ 的效果由于不可溶解的铝chelate 的增加的功能，艾尔( HQ ) 3 ，阻止氯化物离子的吸附，当 HQS 的效果是毁坏氧化物电影时。

英文摘要：

The corrosion behavior of aluminum alloy 2024-T3 was studied in 3.5% NaCl solutinn with two fluorescence quinoline compounds named 8-hydroxy-quinoline（8HQ） and 8-hydroxy-quinoline-5-sulfonic acid（HQS）. The open circuit potential（OCP） test result indicates that both compounds change the alloy corrosion potential by adsorbing on the electrode surface. Polarization measurements show that 8HQ is a mixed type inhibitor by blocking the active sites of the metal surface, while HQS is a corrosion accelerator by activating the cathodic reaction. Changes of the impedance parameters in the electrochemical impedance spectroscopy（EIS） are related to the adsorption of 8HQ on the metal surface, which leads to the formation of a protective layer. The impedance diagram in the solution with HQS is similar to the one without additional organic compounds. The morphology and composition of the protective layer were studied by using SEM/EDS. The result confirms the function of the additions that the effect of 8HQ is due to the insoluble aluminum chelate, AI（HQ）3, to prevent adsorption of chloride ion, while the effect of HQS is to break down the oxide film.