“…In the case of solid-state transformations, these conditions are not identical; precipitated morphology especially is not affected by solute redistribution or convection, and the role of elastic strain cannot be neglected in solid-state phase transformations [ 12 , 13 , 14 , 15 , 16 ]. Studies on the formation of solid-state dendrites in Ni-based alloys [ 13 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 ] have shown that there are differences in the morphology and size of solid-solution dendrites and intermetallic compound dendrites due to different atomic diffusion mechanisms and crystal structures, which affect the evolution of dendrites. At present, the mechanism of nucleation, growth, and morphological evolution of proeutectoid FeAl in dendritic morphology in the solid state has not been reported.…”