Publication at Faculty of Mathematics and Physics |
2011
Abstract
Iron aluminides are promising materials as candidates for high temperature structural applications because of their excellent oxidization resistance, good high temperature strength and low price of raw materials. The mechanical properties of Fe-Al alloys could be enhanced by addition of Zr which leads to formation of λ1 or/and τ1 intermetallic phases corresponding to Fe-Al-Zr ternary diagram.
In this paper is examined the structure of the samples in the as cast state with different concentration of Zr in Fe-30at.%Al-xZr, the volume fraction of phases is calculated and the effect of Zr addition on the high temperature mechanical properties is described.