Experimental and numerical analysis of mechanical behaviors of long-term atmospheric corroded Q235 steel

Guo, Qi; Zhao, Yun; Xing, Ying; Jiao, Jinfeng; Fu, Benzhao; Wang, Yuqing

doi:10.1016/j.istruc.2022.03.027

Cited by 20 publications

(1 citation statement)

References 33 publications

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“…Some studies have explored the in-situ corrosion characteristics of steel materials. Guo et al [14] conducted microscopic and tensile tests on Q235 steel specimens subjected to corrosion degradation in the atmosphere for 33 years. They found that corrosion pits significantly reduced the yield strength, ultimate strength, elastic modulus, and ductility, with elongation decreasing by 24.51%.…”

Section: Introductionmentioning

confidence: 99%

Model for Wastage Allowance and Strength Properties of Pipe Piles Exposed to Marine Corrosion

Xia,

Garbatov,

Liu

et al. 2024

JMSE

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The study’s objective is to analyze the mechanical properties of steel pipe piles as a part of a trestle bridge subjected to five years of natural marine corrosion degradation. Sixteen tensile specimens are extracted from the steel pipe piles in the splash, tidal, and immersion zones. The experimental tensile test results are used to establish regression equations defining the elastic modulus, yield strength, strain hardening index, and strength coefficient for the true stress–strain curves of the three regions. A non-linear time-dependent mathematical model is exploited to identify the corrosion degradation, using the data from one single corrosion degradation measurement campaign. The analysis indicates that the splash zone is experiencing the most severe corrosion degradation, and there are progressive losses in the mechanical properties of each zone as the corrosion degradation progresses. The established relationships of the mechanical properties, as a function of the ratio of corroded plate thickness to the as-built one, can be used as a fast-engineering approach to identify the mechanical properties of severely corroded piles. The corrosion degradation allowance is also defined using the first-order reliability method, accounting for existing uncertainties covered by the partial safety factors. By examining the impact of marine corrosion on the mechanical properties of marine structures and developing predictive models to assess the corrosion’s effect on material strength and corrosion allowance, the study aims to improve offshore structures’ safety, design, and maintenance.

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Section: Introductionmentioning

confidence: 99%

Model for Wastage Allowance and Strength Properties of Pipe Piles Exposed to Marine Corrosion

Xia,

Garbatov,

Liu

et al. 2024

JMSE

View full text Add to dashboard Cite

show abstract

Deterioration of marine offshore structures and subsea installations subjected to severely corrosive environment: A review

Xia,

Jia,

Garbatov

2024

Materials & Corrosion

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Corrosion degradation significantly contributes to the deterioration of offshore structures and subsea installations, impacting the durability of technology equipment while potentially leading to structural failure and environmental pollution. This review primarily focuses on the various types of corrosion observed in offshore structures, the factors influencing corrosion, and the resulting degradation of mechanical properties following corrosion exposure. The study examines the deterioration patterns in tensile properties of offshore structures and subsea facilities, along with the assessment and analysis of corrosion in offshore steel bridges and submarine pipelines. Future research should include a comprehensive scientific investigation of corrosion mechanisms and the development of engineering predictive models to assess corrosion failure and extend the remaining life of offshore structures.

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Structure and Electrochemical Behavior of the Rust on 690 MPa Grade Construction Steel in a Simulated Industrial Atmosphere

Zhu

Zhao

Yan

et al. 2022

Metall Mater Trans A

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Experimental and numerical analysis of mechanical behaviors of long-term atmospheric corroded Q235 steel

Cited by 20 publications

References 33 publications

Model for Wastage Allowance and Strength Properties of Pipe Piles Exposed to Marine Corrosion

Model for Wastage Allowance and Strength Properties of Pipe Piles Exposed to Marine Corrosion

Deterioration of marine offshore structures and subsea installations subjected to severely corrosive environment: A review

Structure and Electrochemical Behavior of the Rust on 690 MPa Grade Construction Steel in a Simulated Industrial Atmosphere

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