Corrosion products of tin in humid air containing sulfur dioxide and nitrogen dioxide at room temperature |
| |
| Authors: | Takeshi Sasaki Ryoji Kanagawa Kazuma Miura |
| |
| Affiliation: | a Research Group of Interface Control Engineering, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan
b Production Engineering Research Laboratory, Hitachi Co. Ltd., Totsuka-ku, Yokohama 244-0817, Japan |
| |
| Abstract: | To obtain a fundamental understanding of the corrosion behavior of tin in corrosive gas environments, in situ infrared reflection absorption spectroscopy measurements were carried out on tin in humid air containing SO2 and NO2 at room temperature. A series of time-resolved in situ IR spectra in air of 90% relative humidity (RH) containing 10-22 ppm SO2 suggested that the oxide films on tin specimens had a protective effect and that no significant corrosion occurred. The corrosion products in air of 80-90% RH containing 10-22 ppm NO2 were SnO2, SnO, nitrate and hyponitrite. The synergistic effect of SO2 and NO2 on corrosion of tin was not observed in humid air (RH of 90%) containing 0.84 ppm SO2 and 1.8 ppm NO2. |
| |
| Keywords: | Corrosion of tin in a gaseous environment In situ IR-RAS XPS NO2 SO2 |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
