Novel use of glow discharge optical emission spectroscopy (GDOES) to study corrosion of AA2024-T3 in the presence and absence of inhibitors - part 3: investigating the effects of various proportions of inhibitor in the coating matrix or in nanocontainers

作者：Bingham Ruth Violet; Thompson George E; Liu Hong

来源：Surface and Interface Analysis, 2016, 48(6): 341-352.

DOI：10.1002/sia.5978

• corrosion
• inhibition
• AA2024-T3
• GDOES
• benzotriazole

Elemental depth profiling by glow discharge optical emission spectroscopy has been used to characterize the corrosion products on AA2024-T3. In previous work, the aluminium, oxygen and copper depth profiles were shown to provide information regarding surface roughening, the thickness of corroded layers and extent of copper de-alloying/ relocation. Nitrogen, sulfur, phosphorus and chromium depth profiles were examined in the hope of detecting inhibitor species within the corroded/altered layers after 5 h of exposure to a corrosive solution. In the present work, the study is extended to longer exposure time. The work presents a further study of the leaching of benzotriazole from the coating matrix or from nanocontainers during various times of exposure to a corrosive environment.

• 出版日期2016-6