TITLE:
Effect of Residual Stress on the Corrosion Behavior of Austenitic Stainless Steel
AUTHORS:
Osamu Takakuwa, Hitoshi Soyama
KEYWORDS:
Residual Stress, Corrosion, Passive Film, Plarization, Stainless Seel
JOURNAL NAME:
Advances in Chemical Engineering and Science,
Vol.5 No.1,
January
15,
2015
ABSTRACT: In this paper we demonstrate that the residual stress introduced by several different surface finishes affects the critical current density for passivation and the passive current density in the anodic polarization curve of austenitic stainless steel and that those critical current densities can be reduced by controlling the residual stress by applying a cavitating jet to the backs of specimens. The results show that the current density either increased or decreased depending on the surface finish, and that was decreased by introducing compressive residual stress for all surface finishes.