Hydrostatic pressure effects on corrosion behaviour of X80 steel in artificial sea water
Source abstract
Abstract
The effect of hydrostatic pressure (HP) on the corrosion behaviour of X80 steel is investigated to assist the development of deep-sea oil and gas resources. The results show that the corrosion current increases as HP increases whereas the charge transfer resistance follows the opposite trend. The corrosion products are composed of γ-FeOOH, α-Fe2O3 and α-FeOOH at atmospheric pressure, while Fe3O4 is only formed at a high HP. Additionally, the inner layer of the corrosion products contains more Fe3O4 compared with the surface corrosion layer. HP accelerates the corrosion rate of X80 steel due to its effect on the chemical and physical properties of the corrosion products, including the promoted reduction of γ-FeOOH and the formation of wider and deeper cracks on the corrosion product layer.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Corrosion Behavior and Inhibition · Hydrogen embrittlement and corrosion behaviors in metals · Non-Destructive Testing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing, People’s Republic of China
Innovation Group of Marine Engineering Materials and Corrosion Control, Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, People’s Republic of China
School of Materials, Sun Yat-sen University, Gugangzhou, People’s Republic of China
Funding
Beijing Science and Technology Planning Project · National Natural Science Foundation of China · Overseas Expertise Introduction Project for Discipline Innovation
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