Abstract
The benefits of carbon addition achieved in iron aluminides based on Fe 3Al, could not be achieved in the case of iron aluminides based on FeAl because of the precipitation of soft graphite phase as against hard Fe 3AlC 0.5 at high concentration of carbon. This study also indicates that the strength of iron aluminides containing carbon appears to be determined by the volume fraction of Fe 3AlC 0.5 precipitates in these alloys.
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