Recrystallization Behavior of IF Steel at the Interface of Al Junction

The recrystallization behavior of a cold-rolled IF steel sheets, which had experienced recrystallization at higher temperature, was investigated at the active interface between IF steel and pure Al, heat-treated at 650ºC. In the region surrounded by the tongue-like η-Fe2Al5 phase, the recrystallized structure of the IF steel was characterized by equiaxed structure including subgrains, whereas elongated pancake shaped ferrite was majored in other...