The interfacial adhesion properties of enamel-coated, alloyed steels were in detail characterized
by spectroscopic techniques. The surfaces of alloyed steels existed as oxidized states of Fe3O4. Therefore, the
oxidized surfaces of the steels significantly interacted with the coated enamels for the adhesion. Ti-alloyed
steel showed many micro-boundaries during thermal treatment and these micro-boundaries might cause the
decline of the interfacial adhesion between enamel and steel. The depth profiles of enamel-coated, alloyed
steels were investigated by GDS (glow discharge spectroscopy) and Ti component was found to be related to
the interfacial adhesion between enamel and steel.