Fe-Al-Si alloys for applications in internal combustion engines

Novák Pavel - University of Chemical Technology in Prague (Czech Republic)

Iron aluminides have been considered as materials resistant against high temperature oxidation in air and sulphur-containing environments. Previous research of our team proved that the oxidation resistance in the air can be significantly improved by the addition of silicon. Fe-Al-Si alloys have also very good mechanical properties at high temperatures. However, the resistance in the environments simulating combustion gasses have not been studied yet. This work focuses on the oxidation resistance in carbon dioxide, which is the main component of the combustion gasses. Thermal stability was tested during long-term annealing in this environment.

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