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| Corrosion Behavior of316Stainless Steel in Desalinate Seawater |
| Received:September 12, 2013 Revised:October 25, 2013 |
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| DOI：10.7643/issn.1672-9242.2013.06.004 |
| KeyWord:stainless steel desalinate seawater pitting potential slow strain rate test |
| Author | Institution |
| WU Heng |
Qingdao NCS Testing＆Corrosion Protection Technology Co.，Ltd，Qingdao，China |
| HOU Xiao-wei |
North China Sea Marine Forecasting Center of State Oceanic Administration，Qingdao，China |
| LI Chao |
Qingdao NCS Testing＆Corrosion Protection Technology Co.，Ltd，Qingdao，China |
| ZHANG Bo |
Qingdao NCS Testing＆Corrosion Protection Technology Co.，Ltd，Qingdao，China |
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| Abstract: |
| Objective To study the corrosion behavior of316L stainless steel in desalinate seawater.Methods Electrochemical technique, SEM observation and slow strain rate test were used.ResultsThe result of impedance indicated that the corrosion resistance decreased with the increasing temperature; The result of cyclic voltammetry indicated that the pitting potential decreased with the increasing temperature, resulting in the decreased pitting corrosion resistance; SSRT results showed that 316L stainless steel was relatively sensitive in desalinate seawater; At35℃and 50℃, the fracture of 316stainless steel was ductile fracture, and the fracture surfaces exhibited ductile fracture and quasi-cleavage at70℃, and the sensitivity of SCC was strengthened. Conclusion 316L stainless steel was relatively more sensitive in desalinate seawater with the increasing temperature. |
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