About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
|
Symposium
|
High Temperature Oxidation of Metals and Ceramics
|
Presentation Title |
Materials Compatibility of Automotive Alloys in Synthetic Fuels - Test Method Development to Evaluate the Corrosion Behavior of Aluminum Materials in Oxygenates(OMEs) |
Author(s) |
Rüdiger Reitz, Visheet Vidyottam Arya, Matthias Oechsner |
On-Site Speaker (Planned) |
Visheet Vidyottam Arya |
Abstract Scope |
In the framework of a comprehensive DoE-based test approach, potential corrosion-stimulating fuel components such as water and chloride are varied in order to identify their respective impact on material compatibility. For example, the degree of corrosion documents a significant influence of the blend content between OME and fossil Diesel fuel, especially at an increased water content. In contrast, the influence of the salt concentration is rather moderate, although chloride is the actual electrochemical corrosion-stimulating component. To clarify this contradiction, addition electrochemical instrumented immersion tests were carried out in order to characterize pitting initiation behavior and its respective impact on passive layer resistance. Superimposed mechanical loads were applied by means of a servo hydraulic test facility. This method enables to investigate additional impact on crack initiation and possible hydrogen-induced effects. Finally, an evaluation matrix was used to identify critical fuel–material scenarios and classify suitable materials for industrial and automotive application. |