Corrosion behaviour of AISI type 304L stainless steel in nitric acid media containing oxidizing species |
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Authors: | S Ningshen U Kamachi Mudali S Ramya Baldev Raj |
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Affiliation: | Corrosion Science and Technology Division, Indira Gandhi Centre for Atomic Research, Kalpakkam 603 102, India |
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Abstract: | The corrosion behaviour of AISI type 304L stainless steel (SS) in different concentration of 0.01 M, 1 M and 5 M HNO3 in presence of oxidizing ions at different temperatures has been evaluated. The main objective of this study is to assess the corrosion resistance of type 304L SS in non-radioactive conditions encountered during storage of liquid nuclear waste. Electrochemical impedance spectroscopy (EIS) and laser Raman spectroscopy (LRS) has clearly brought out the deleterious effect of oxidizing species on the passive film leading to increased corrosion along with increase in HNO3 concentration and higher temperature. |
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Keywords: | A Stainless steel B Polarization B EIS B Raman spectroscopy C Acid corrosion |
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