Journal
CORROSION SCIENCE
Volume 53, Issue 9, Pages 2918-2926Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.corsci.2011.05.030
Keywords
Acid solutions; Stainless steel; Acid corrosion; Stress corrosion
Funding
- Special Funds for the Major State Basic Research Projects [2006CB605004]
- Basic Application and Cutting-edge Technology Research Plan Program of Tianjin [09JCYBJC02200]
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This paper focuses on the corrosion process of 304 stainless steel in acidic NaCl solution during slow strain rate testing experiment by using electrochemical noise (EN) and acoustic emission (AE) techniques. Meanwhile, the EN and AE characteristics of corrosion process were studied. The results show that stress corrosion occurs easily in the experimental system, and corrosion forms develops gradually from localized corrosion including stress corrosion and pitting corrosion to general corrosion. The AE signal characteristics of pitting corrosion, crack and bubble break-up are significantly different during the corrosion process. (C) 2011 Elsevier Ltd. All rights reserved.
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