Effects of surface preparation on pitting resistance, residual stress, and stress corrosion cracking in austenitic stainless steels

Ben Rhouma, A.; Braham, C.; Fitzpatrick, M. E.; Lédion, J. and Sidhom, H. (2001). Effects of surface preparation on pitting resistance, residual stress, and stress corrosion cracking in austenitic stainless steels. Journal of Materials Engineering and Performance, 10(5) pp. 507–514.

DOI: https://doi.org/10.1361/105994901770344638

URL: http://www.springerlink.com/content/e655012x5765u2...

Abstract

Surface finishing treatments such as shot blasting and wire brushing can be beneficial in improving the integrity of machined surfaces of austenitic stainless steels. These operations optimize in-service properties such as resistance to pitting corrosion and stress corrosion cracking (SCC). In this study, ground steel surfaces were subjected to a series of sand blasting and wire brushing treatments. The surfaces were then characterized by their hardness, surface residual stress state, and resistance to stress corrosion and pitting corrosion. Some samples were selected for depth profiling of residual stress. It is found that surface hardening and the generation of near-surface compressive residual stress are the benefits that can be introduced by sand blasting and brushing operations.

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