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.
Highlights
The objective of this paper is to demonstrate the effect of residual stress on the corrosion behavior in austenitic stainless steel 316L
In order to demonstrate the effect of residual stress on the corrosion behavior in austenitic stainless steel, specimens made of Japanese Industrial Standards JIS SUS316L were treated by several different surface finishes, and subjected to a corrosion test using an electrochemical method
The difference in residual stress is due to the different surface finish, and this may generate different corrosion behavior
Summary
The objective of this paper is to demonstrate the effect of residual stress on the corrosion behavior in austenitic stainless steel 316L. Residual stress is introduced into machine components and structures by surface finishing and/or heat treatments, and this affects the fatigue life and resistance to stress corrosion cracking [1] [2]. Several surface finishes such as a polisher and grinder are used for finishing the surface and removing the asperity generated by welding process at surface of components and structures. Since the residual stress at the surface is a significant factor, it is important to understand the effect of this on the corrosion behavior of materials, for components and structures used in cor-
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
