| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Computation Assisted Materials Development for Improved Corrosion Resistance
|
| Presentation Title |
Modelling Alkoxide Corrosion Initiation of Pure-aluminum in Ethanol with Integrated Simulation-based Experimental Methods |
| Author(s) |
Visheet Vidyottam Arya, Rüdiger Reitz, Matthias Oechsner, Eugen Gazenbiller, Daniel Höche |
| On-Site Speaker (Planned) |
Visheet Vidyottam Arya |
| Abstract Scope |
Renewable oxygenates such as Bioethanol are used increasingly as fossil fuel blends or substitutes directly influencing the occurrence of alkoxide corrosion in fuel-carrying vehicle components at elevated temperatures. Due to the spontaneous character and the tremendously high material degradation rate after alkoxide corrosion initiation, new approaches capable of localized and detailed measurements are needed with respective high-resolution test equipment. This work showcases a novel high pressure-temperature micro-reactor which is able to conduct measurements with high sensitivity in order to assess exact corrosion initiation times and reaction rates at elevated temperatures. A study on the corrosion reaction of commercially pure aluminium in anhydrous ethanol has been conducted using the new device. The distribution of the thermally induced chaotic pit initiation is evaluated statistically described by lognormal distribution density functions to develop a statistic-based simulation model which effectively replicates experimental results and therefore implies the ability for improvement by considering further factors. |