During the deformation operation several effects take
place. The chromium metal/oxide layer is damaged and
iron can be exposed depending on the chromium layer
thickness. The amount of iron is also dependent on the
type of deformation operation; in this research we focused
on the DRD can. Exposed iron did not have any bond to
the polymer before deformation (it is “new surface”) and
if no new and strong bonds are made, weak spots will be
present.