Small amount addition of Ce to Fe_3Al results in a significant increase of room temperaturestrength of the alloy,and the combined addition of Ce and Cr improves both strength andductility.The fracture mode of Fe_3Al containing Ce is a mixed one of approximately 70%transgranular cleavage and 30% intergranular failure.In the deformed specimens of binaryFe_3Al the dislocations observed are mainly single dislocations with =(1/4)a_0~’〈111〉.However,a number of superlattice dislocations can be observed in the deformed specimens ofthe alloys with Cr addition. Small amount addition of Ce to Fe_3Al results in a significant increase of room temperature strength of the alloy, and the combined addition of Ce and Cr improves both strength and flexibility. The fracture mode of Fe_3Al containing Ce is one mixed one of approximately 70% transgranular cleavage and 30% intergranular failure. In the deformed specimens of the binaryFe_3Al the dislocations observed are mainly single dislocations with = (1/4) a_0 ~ ’<111> .However, a number of superlattice dislocations can be observed in the deformed specimens of the alloys with Cr addition