NIMTE OpenIR  > 2018专题
Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels
Zhao, Tianliang; Liu, Zhiyong; Chao, Liu; Dai, Chunduo; Du, Cuiwei; Li, Xiaogang
2018
发表期刊JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
卷号27期号:9页码:4921-4931
摘要The electrochemical process and corrosion behavior prior to crack initiation of E690 steel fatigued in simulated seawater are investigated under different cyclic stress levels by methods of electrochemical impedance spectroscopy, cyclic current response, electrochemical noise and morphology observation. The results show that the electrochemical behavior changes with the peak stress of cyclic loading and the corrosion behavior transforms as the peak stress increases over the proof strength. The charge transfer resistance (R-ct) decreases with elevated peak stress. Continuous decreasing R-ct with cycling number under peak stress of 1.02 sigma(p0.2) indicates that continuous fresh metal induced by work-softening is exposed to the seawater, which is also proved by cyclic current response induced by cyclic stress and contact angle test. As a result, the corrosion type of E690 steel changes from general corrosion to pitting corrosion with the peak stress close to and above the proof strength. That induces the corrosion fatigue crack initiation mechanism to change correspondingly.
关键词High-temperature Water Stainless-steel Electrochemical Noise Carbon-steel Mechanism Propagation Dissolution Aluminum Metals Energy
学科领域Polymer Science
语种英语
文献类型期刊论文
条目标识符http://ir.nimte.ac.cn/handle/174433/17218
专题2018专题
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GB/T 7714
Zhao, Tianliang,Liu, Zhiyong,Chao, Liu,et al. Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2018,27(9):4921-4931.
APA Zhao, Tianliang,Liu, Zhiyong,Chao, Liu,Dai, Chunduo,Du, Cuiwei,&Li, Xiaogang.(2018).Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,27(9),4921-4931.
MLA Zhao, Tianliang,et al."Variation of the Corrosion Behavior Prior to Crack Initiation of E690 Steel Fatigued in Simulated Seawater with Various Cyclic Stress Levels".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE 27.9(2018):4921-4931.
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