EFFECT OF CARBON ADDITION ON PHASE COMPOSITION AND HIGH TEMPERATURE STRENGTH OF FE(3)AL-TYPE IRON ALUMINIDE WITH ZR
2010
Abstrakt
Iron aluminides of Fe(3)Al type with Zr addition are studied as good high-temperature resistant materials for structural applications. Generally, Zr addition leads to formation of Laves phase in the structure of ternary alloys.
Presence of these phases enhances high-temperature mechanical properties. The effect of carbon addition on the phase composition of these ternary alloys was studied.
Two ordered alloys with the similar Fe, Al and Zr content and different carbon content were compared. The phase composition was studied by light optical microscopy (LOM), scanning electron microscopy (SEM) with energy dispersive analysis (EDA) and X-ray diffraction analysis (XRD).
High-temperature mechanical properties are tested in tension.