Preparation and Properties Study of Cr on FeCrAl Cladding Materials

FeCrAl alloy is a promising candidate material for the fourth-generation reactor core cladding material. Adjustment of the Cr content is one of the effective ways to obtain enhanced performance for the FeCrAl alloy. In this work, Fe-xCr-6Al alloy(11≤x≤15) with different Cr content were successfully prepared by hot rolling. When Cr replacement of Fe atoms in Fe-xCr-6Al alloy rises from 11 wt.% to 15 wt.%, the lattice distortion of Fe-xCr-6Al alloy increases, and the mechanical properties and thermal conductivity of the Fe-xCr-6Al alloy are raised. Compared with Al content, Cr content has less effect on Fe-xCr-6Al oxidation resistance.