THE EFFECT OF PHASE COMPOSITION AND DISTRIBUTION ON COEFFICIENT THERMAL EXPANSION OF FE3AL BASED IRON ALUMINIDES

1 ŠVEC Martin
Co-authors:
1 VODIČKOVÁ Věra 1 HANUS Pavel
Institution:
1 Technical University of Liberec, Faculty of Engineering, Department of Material Science, Liberec, Czech Republic, EU, martinsveclbc@seznam.cz
Conference:
23rd International Conference on Metallurgy and Materials, Hotel Voronez I, Brno, Czech Republic, EU, May 21 - 23, 2014
Proceedings:
Proceedings 23rd International Conference on Metallurgy and Materials
Pages:
1387-1392
ISBN:
978-80-87294-52-9
ISSN:
2694-9296
Published:
18th June 2014
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
281 views / 131 downloads
Abstract

The iron aluminides can be applied in many engineering applications due to the wide range of their positive properties. One possibility of their use could be for machine components working at elevated temperatures in corrosive environments. But it is necessary to know one important characteristic for use iron aluminides in high-temperature applications – their thermal expansion. Generally, the high-temperature properties are affected by alloys structure mainly by second phases distribution. From this point of view the same effect for coefficients of thermal expansion (CTE) could be supposed. CTE of representative Fe3Al – type iron aluminides with different structure type was studied in temperature range 340 – 1200°C. The main aim of this paper is to find connections between the structure of alloys and CTE.

Keywords: Coefficient of thermal expansion (CTE), Fe3Al – type iron aluminides, HT– 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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