کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1469727 | 990308 | 2011 | 10 صفحه PDF | دانلود رایگان |
The corrosion behaviour of copper under chloride-containing thin electrolyte layers (TEL) was investigated using electrochemical impedance spectroscopy (EIS), cathodic polarization, linear polarization, SEM/EDS and XRD. The results indicate that the copper corrosion rate increases as TEL thickness decreases during the initial stages. After 192 h of immersion, the corrosion rate of copper under TEL in this order: 300 > 402 > 199 > bulk solution > 101 μm. The corrosion behaviour is uniform under TEL, and pitting is the primary corrosion type in the bulk solution. A corrosion model of the behaviour of copper under chloride-containing TEL is proposed.
► Corrosion behaviour of copper under thin electrolyte layers (TEL) with various thicknesses was investigated.
► Corrosion rate increases with decreasing layer thickness during the initial stage.
► Corrosion rate follows the order 300 > 402 > 199 > bulk solution > 101 μm after long time immersion.
► A corrosion model of copper under chloride-containing TEL is proposed.
Journal: Corrosion Science - Volume 53, Issue 10, October 2011, Pages 3289–3298