中文摘要：

利用8-羟基喹啉（8HQ）与铝离子鳌合后形成的鳌合物——8-羟基喹啉铝（AlQ3）能发出强荧光的特性,开发了一种有效地铝合金涂层下腐蚀的监测技术.研究了铝离子浓度及pH对8-羟基喹啉铝（AlQ3）的吸光度及荧光特性的影响.发现了8HQ与Al3＋鳌合生成的AlQ3荧光强度随Al3＋浓度的变化规律.成功地将8-羟基喹啉加载在LY12铝合金表面,并以透明环氧树脂涂层覆盖.所制备的试样经盐雾腐蚀后表面出现明显的荧光斑点,荧光斑点处用光学显微镜观测可见腐蚀现象,而在可见光下观测并未有明显变化.研究表明：随着腐蚀时间延长,腐蚀程度加深,试样表面荧光现象增强.

英文摘要：

A fluorescent technology for corrosion prediction of aluminum alloys based on a coating containing a complex （AlQ3） of aluminum ions with 8-hydroxy-quinoline （8HQ） was studied. The effects of aluminum ions and pH on the fluorescence characteristic of 8HQ were investigated. It was found that the intensity of AlQ3 was increased with the concentration of aluminum ions. The 8HQ was embedded into the surface of the aluminum alloy and then further coated by a transparent epoxy coating to make samples. The samples made by this technology were exposed to a salt spray box. After salt spray tests, fluorescent spots were observed clearly under UV light whereas no obvious change was seen under visible light. The corrosion pitting on aluminum alloy substrates was observed at the fluorescent spots by an optical microscope, It was proved that the fluorescent spot size and intensity were increased with the aggravation and enlargement of corrosion area with corrosion time.