The kinetics of passivation based on the reduction of current density under potentiostatic conditions for a martensitic stainless steel

Abstract

The potentiostatic method and the theory of 'topochemical reactions' in the kinetics of the active dissolution and passivation process of AISI 420 stainless steel were studied. It was found that, to a great extent, the number of conversion steps is depended on the imposed potential. The experimentally obtained results were partially explained using Okamoto's theory of passivation.

Keywords

• topochemical reactions
• aisi 420
• kinetic of passivation
• passivation processes