Corrosion characteristics of Q690qE high-strength bridge steel in simulated coastal–industrial environment and its influence on mechanical and corrosion fatigue behaviors

Cai, Jiaxing; Sun, Liyang; Ma, Hongchi; Li, Yong

doi:10.1016/j.conbuildmat.2022.127830

Cited by 29 publications

(5 citation statements)

References 47 publications

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“…The previous research works show that, with the promotion of static strength, fatigue resistance does not increase proportionally, then during the engineering application of high-strength steel, fatigue resistance is a major concern. 8 To better characterize the behavior of Q690D under cyclic loading, this study provides a quantitative comparison between the mechanical properties of Q690D high-strength steel and the widely used conventional mild steel Q355B. The comparison was carried out based on the above experimental results and the previous study given by Si.…”

Section: Comparison With Q355bmentioning

confidence: 99%

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Pre‐fatigue damage on the mechanical properties of Q690D steel

Zong

Liu

et al. 2023

Fatigue Fract Eng Mat Struct

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This article aims to analyze the influence of high‐cycle fatigue damage on the mechanical properties and low‐cycle fatigue performance of Q690D. Monotonic tensile and cyclic loading tests were performed on Q690D specimens with different degrees of high‐cycle fatigue damage. Degradation models were established to describe the declining trend of mechanical properties with the increase of pre‐fatigue damage. Manson–Coffin models for Q690D steels of different pre‐damage levels were established. Besides, a comparison was presented between Q690D and Q355B. The research work in this article provides a fundamental reference for the appropriate assessment of the mechanical performance of Q690D high‐strength steel structures after long‐term alternating loading.

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Section: Comparison With Q355bmentioning

confidence: 99%

“…Guo et al [3][4][5][6][7] carried out experimental research on the highcycle fatigue (HCF) performance of Q690 material and connections. Cai et al 8 studied the effect of corrosion on the mechanical and fatigue behaviors of Q690qE. Jesus et al 9 compared the low-cycle fatigue (LCF) behavior of S355 and S690 high-strength steel.…”

Section: Introductionmentioning

confidence: 99%

Pre‐fatigue damage on the mechanical properties of Q690D steel

Zong

Liu

et al. 2023

Fatigue Fract Eng Mat Struct

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“…The presence of salinity in the atmosphere accelerates metallic corrosion and the degradation of concrete structures. This issue has signi cant worldwide implications for a country's economy and holds particular importance for human society as a whole [4][5][6][7][8][9], especially in coastal zones [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Long-term monitoring of chloride deposition and its influencing factors around the East China sea Island

Jia,

Cui,

et al. 2024

Preprint

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This study aims to monitor the chloride ion deposition rate at nine distinct locations on Zhairuoshan Island in the East China Sea over a period of 16 months. The research investigates the impact of offshore distance, azimuth, season, rainfall, and wind conditions on the rate of chloride ion deposition. Furthermore, this study conducts an atmospheric corrosion test on Q235 steel at four representative points on the island, and subsequently compares the findings with the chloride ion deposition rate.

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“…Zhang et al [7] found that the cutting residual stress promoted the initiation of corrosion fatigue cracks of 316 stainless steel in a high-temperature and high-pressure water environment. Cai et al [8] found that Cl − enrichment and local stress concentration lead to corrosion fatigue crack initiation of the Q690qE high-strength bridge steel. Hu et al [9] found that the crack growth rate of 17-4PH steel in a corrosive environment is 6.39 times that of air.…”

Section: Introductionmentioning

confidence: 99%

The Initiation Characteristics of Corrosion Fatigue Crack in 18Ni (250) Steel

Pan,

Zhu,

Fang

2024

JMSE

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Maraging steel is the material of deep sea pressure equipment. The characteristics of corrosion fatigue crack initiation in 18Ni (250) were investigated by performing a tensile fatigue test under different loading conditions. The mechanism of corrosion fatigue crack initiation was analyzed considering the influence of welding. The results showed that the crack initiation life decreases with increasing load and increases with the stress ratio. In a corrosive seawater environment, crack initiation is affected by both mechanical damage and electrochemical corrosion. The proportion of the crack initiation life of the total sample life is approximately 71.45–99.55%, where the larger this proportion is, the smaller the fatigue zone is. Crack initiation and microcrack propagation in maraging steel correspond to the microfracture mechanism of dimple fractures. The microfracture mechanism is strongly affected by the presence of a weld but weakly affected by the weld position. The results of this study provide a theoretical basis for predicting the corrosion fatigue life of deep-sea submersible pressure hulls.

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Corrosion characteristics of Q690qE high-strength bridge steel in simulated coastal–industrial environment and its influence on mechanical and corrosion fatigue behaviors

Cited by 29 publications

References 47 publications

Pre‐fatigue damage on the mechanical properties of Q690D steel

Pre‐fatigue damage on the mechanical properties of Q690D steel

Long-term monitoring of chloride deposition and its influencing factors around the East China sea Island

The Initiation Characteristics of Corrosion Fatigue Crack in 18Ni (250) Steel

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