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| Study of Corrosion Fatigue Crack Propagation Behavior of High-strength Steel by Electrochemical Method |
| Received:June 24, 2010 Revised:February 15, 2011 |
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| DOI： |
| KeyWord:high-strength steel fatigue crack propagation linear polarization EIS |
| Author | Institution |
| ZHANG Hui-xia |
Key Laboratory of Marine Corrosion and Protection，Luoyang Ship Materials Research Institute，Qingdao ，China |
| CHENG Wen-hua |
Key Laboratory of Marine Corrosion and Protection，Luoyang Ship Materials Research Institute，Qingdao ，China |
| DENG Chun-long |
Key Laboratory of Marine Corrosion and Protection，Luoyang Ship Materials Research Institute，Qingdao ，China |
| WANG Jun-tao |
Key Laboratory of Marine Corrosion and Protection，Luoyang Ship Materials Research Institute，Qingdao ，China |
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| Abstract: |
| Electrochemical behavior of high-strength steel under fatigue load in 3.5% NaCl solution was studied with linear polarization（LP）and AC electrochemical impedance spectroscopy（EIS）methods. The results showed that open circuit potential first decreased and then stabilized and increased a little finally during corrosion fatigue crack propagation process; polarization resistance obtained using LP and EIS both increased first and then decreased. |
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