Korean J. Met. Mater.
2018;56(5):350-359. Published online 2018 May 8
When 2.25Cr-1Mo steel was hot-dip aluminized, a coating consisting of (Al-rich topcoat)/(Al13
layer) formed. With increment of oxidation temperature, the transform of Al→Al13
→α-Fe(Al)→α-Fe occurred through interdiffusion between the coating and the substrate as follows. The oxidation at 700 o
C changed the coating to (α-Al2