THE COEFFICIENT OF THERMAL EXPANSION OF FE3AL AND FEAL – TYPE IRON ALUMINIDES

1 ŠVEC Martin
Co-authors:
1 MACAJOVÁ Eva
Institution:
1 Technical University of Liberec, Faculty of Engineering, Department of Material Science, Liberec, Czech Republic, EU
Conference:
24th International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, June 3rd - 5th 2015
Proceedings:
Proceedings 24th International Conference on Metallurgy and Materials
Pages:
1657-1661
ISBN:
978-80-87294-58-1
ISSN:
2694-9296
Published:
12th January 2015
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
1640 views / 161 downloads
Abstract

The iron aluminides seem to be very perspective materials for use in high-temperature structural applications. They are promising materials for a possible replacement of high alloyed steels of P91 or P92 type. But it is very important to know the coefficient of thermal expansion (CTE) of iron aluminides for use as structural materials at high temperatures. It can also be determined phase transformations in the alloy from CTE measurement.In this paper there were studied the differences in CTE-curves between Fe3Al (D03 structure) and FeAl (B2 structure) type iron aluminides. It was investigated the coefficients of thermal expansion and phase structure of three samples in temperature range 440 – 1200 °C.

Keywords: Coefficient of thermal expansion, FeAl, FeAl, iron aluminides, dilatation

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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