Abstract
Standard test methods such as the electrochemical potentiokinetic reactivation test (EPR) and double- loop EPR test (DL-EPR) are commonly used to characterise sensitisation behaviour in austenitic stainless steels and nickel-based alloys. In this study, the DL-EPR test is augmented by large-area image analysis (IA) to characterise and quantify the networks of attacked grain boundaries. A new analysis approach that is based on a grain boundary cluster parameter is proposed to describe the network of corrosion suscep- tible grain boundaries, which may be estimated from electron backscatter diffraction (EBSD) data. This method may provide a better assessment of the relative DOS of different heats of austenitic stainless steels.
Original language | English |
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Pages (from-to) | 4213–4222 |
Number of pages | 10 |
Journal | Corrosion Science |
Volume | 53 |
Issue number | 12 |
DOIs | |
Publication status | Published - 2011 |
Keywords
- stainless steel
- polarisation
- Stress Corrosion
- Intergranular Corrosion