Preliminary communication

Application of feal intermetallic phase matrix based alloys in the turbine components of a turbocharger

J. Cebulski ; Silesian University of Technology, Institute of Material Science, Katowice, Poland

Abstract

This paper presents a possible application of the state-of-the-art alloys based on the FeAl intermetallic phases as materials for the manufacture of heat-proof turbine components in an automobile turbocharger. The research was aimed at determining the resistance to corrosion of Fe40Al5CrTiB alloy in a gaseous environment containing 9 % O₂ + 0,2 % HCl + 0,08 % SO₂ + N₂. First the kinetics of corrosion processes for the considered alloy were determined at the temperatures of 900 °C, 1 000 °C and 1 100 °C, which was followed by validation under operating conditions. To do so, the tests were carried out over a distance of 20 000 km. The last stage involved examination of the surfaces after the test drive. The obtained results are the basis for further research in this field.

Keywords

FeAl; structure; intermetallic phase; corrosion; turbocharger

Hrčak ID:

126719

URI

https://hrcak.srce.hr/126719

Publication date:

1.1.2015.

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