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Corrosion Engineering, Science and Technology
The International Journal of Corrosion Processes and Corrosion Control
Volume 51, 2016 - Issue 3
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Research Article

Effect of heat treatment on hydrogen permeation behaviour of AISI 4135 steel under splash zone conditions

W. QuResearch Development Center of Marine Science and Technology, Institute of Oceanology, Chinese Academy of Sciences, Nantong226006, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Qingdao266071, China;University of Chinese Academy of Sciences, Beijing100049, China
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Y. HuangResearch Development Center of Marine Science and Technology, Institute of Oceanology, Chinese Academy of Sciences, Nantong226006, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Qingdao266071, ChinaCorrespondence[email protected]
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X. YuResearch Development Center of Marine Science and Technology, Institute of Oceanology, Chinese Academy of Sciences, Nantong226006, China;Key Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Qingdao266071, China;University of Chinese Academy of Sciences, Beijing100049, China
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D. LuKey Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Qingdao266071, China;University of Chinese Academy of Sciences, Beijing100049, China
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M. ZhengKey Laboratory of Marine Environmental Corrosion and Bio-fouling, Institute of Oceanology, Qingdao266071, China;University of Chinese Academy of Sciences, Beijing100049, China
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R. De MarcoFaculty of science, Health, Education and Engineering, University of the Sunshine Coast, 90 Sippy Downs Drive, Queensland4556, Australia
Pages 163-170 | Received 10 Apr 2015, Accepted 04 Jul 2015, Published online: 18 May 2016
 
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Abstract

Effect of heat treatment on the hydrogen permeation behaviour of AISI 4135 steel was studied by electrochemical method under simulated splash zone conditions. The hydrogen permeation current reached maximum at dry stage and the amount of hydrogen permeated showing a maximum in sixth cycle. Moreover, it was found that the amount of hydrogen permeated through specimen with bainitic microstructure was lower than that in other specimens. The average value of charge transfer resistances for heat treated specimens A, B, C and D exhibit no significant differences under nature sea water film. Moreover, the heat treatments have no prominent impact on corrosion products from the X-ray diffraction (XRD) pattern and SEM analysis. Therefore, the differences in hydrogen permeation behaviours were mainly attributed to the microstructures of specimens other than the differences in corrosion behaviour.

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