Role of loading direction on high-temperature tensile behavior of Fe-13Cr-4Al-2Mo-0.65Nb alloy

•The role of loading direction on high-temperature tensile behavior of FeCrAl alloy is examined.•The loading direction has little effect on the strength but a significant impact on the ductility.•High-density dislocation bands and smaller grain size in TD lead to lower ductility of TD sample.•Both RD and TD samples show identical serrated flow characteristics at each temperature. The Fe-13Cr-4Al-2Mo-0.65Nb alloy is being considered as a promising accident-tolerant cladding fuel material for light water reactors design. The present work investigated the mechanical properties and serration behavior of the hot-rolled FeCrAl alloy in the rolling direction (RD) and transverse direction (TD) under various temperatures. The presence of the high-density dislocation bands parallel to RD and the smaller grain size in TD are recognized as leading causes of the lower ductility of the TD specimens. Additionally, both RD and TD specimens show identical serrated flow behaviors at each temperature, suggesting the serration behavior is independent of the loading direction.