Abstract
In this study, solution annealed AISI type 304 L stainless steel (SS) was thermo-mechanically processed (TMP) by introducing different cold-rolled 20 and 40 percentages, followed by annealing at 900 °C and water quenching. Sensitization was carried out by heat treatment for 24 h at 675 °C. The degree of sensitization (DOS) was measured by the electrochemical double loop potentiokinetic reactivation (DL-EPR) technique, indicating high DOS (12.5%) for the as-received specimen. The grain boundary engineering (GBE) by TMP treatment substantially lowered the DOS (7.1%) and resistance against intergranular corrosion (IGC) in a boiling nitric acid medium.
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