Abstract
Corrosion developed at the paint and aluminum (Al) metal-paint interface of an aluminum alloy is analyzed using time-of-flight secondary ion mass spectrometry (ToF-SIMS), illustrating that SIMS is a suitable technique to study the chemical distribution at a metal-paint interface. The painted Al alloy coupons are immersed in a salt solution or exposed to air only. SIMS provides chemical mapping and 2D molecular imaging of the interface, allowing direct visualization of the morphology of the corrosion products formed at the metal-paint interface and mapping of the chemical after corrosion occurs. The experimental procedure of this method is presented to provide technical details to facilitate similar research and highlight pitfalls that may be encountered during such experiments.
| Original language | English |
|---|---|
| Article number | e59523 |
| Journal | Journal of Visualized Experiments |
| Volume | 2019 |
| Issue number | 147 |
| DOIs | |
| State | Published - May 2019 |
Funding
This work was funded by the QuickStarter Program supported by Pacific Northwest National Laboratory (PNNL). PNNL is operated by Battelle for the U.S. DOE. This work was performed using the IONTOF ToF-SIMS V, located in the Biological Sciences Facility (BSF) at PNNL. JY and X-Y Yu also acknowledged the support from the Atmospheric Sciences & Global Change (ASGC) Division and Physical and Computational Sciences Directorate (PCSD) at PNNL
Keywords
- 2D imaging
- Aluminum
- Chemistry
- Corrosion
- Issue 147
- Limit of detection (LOD)
- Mass spectra
- Metal-paint interface
- ToF-SIMS