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Numerical simulatio...
Numerical simulation of carbon steel atmospheric corrosion under varying electrolyte-film thickness and corrosion product porosity
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- Li, Wenchao (author)
- KTH,Yt- och korrosionsvetenskap,Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, 12 Kunlun Rd, Beijing 102206, Peoples R China.
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- Liu, Kangning (author)
- Beijing Inst Space Launch Technol, 1 South Dahongmen Rd, Beijing 100076, Peoples R China.
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- Wu, Jiangshun (author)
- Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, 12 Kunlun Rd, Beijing 102206, Peoples R China.
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- Lian, Qinglin (author)
- Beijing Inst Space Launch Technol, 1 South Dahongmen Rd, Beijing 100076, Peoples R China.
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- Qiang, Yujie (author)
- Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, 12 Kunlun Rd, Beijing 102206, Peoples R China.
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- Pan, Jinshan, 1962- (author)
- KTH,Yt- och korrosionsvetenskap
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- Jin, Ying (author)
- Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, 12 Kunlun Rd, Beijing 102206, Peoples R China.
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(creator_code:org_t)
- 2023-01-11
- 2023
- English.
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In: NPJ MATERIALS DEGRADATION. - : Springer Nature. - 2397-2106. ; 7:1
- Related links:
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- A finite element model is developed to study dynamics of atmospheric corrosion of carbon steel, focusing on the influence of thin electrolyte film thickness under varying corrosion product porosity. Calculations have been done to evaluate the impact of electrolyte film thickness and corrosion product porosity on oxygen diffusion path, and the hindrance effect of corrosion products on the metal surface activity. The time evolution of corrosion current density and controlling steps in the corrosion process are explored. When the corrosion products are loose, oxygen diffusion is the dominant controlling step, and the thicker the electrolyte film, the lower the corrosion rate. When they are dense, the corrosion process is controlled by the mixture of oxygen diffusion and the surface discharge. The oxygen diffusion path is determined only by the corrosion product porosity, and therefore the corrosion rate is not affected by the electrolyte film thickness.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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