Mechanical Properties of Native Rust Layer Formed on a Low Alloy Steel Exposed in Marine Atmosphere.

Zhang, Q. C.; Wu, Jinglei; Zhazheng, W. L.; Chen, J. G.; Li, A. B.

doi:10.2355/isijinternational.42.534

Cited by 13 publications

(10 citation statements)

References 9 publications

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“…4). Zhang et al [177] confirmed in the marine atmosphere of Quingdao (35 mg Cl -/m 2 day) the results obtained by Larrabee and Coburn. The thickness loss of steels exposed in marine atmosphere decreased rapidly as their Cr content was increased.…”

Section: Chromium Steelssupporting

confidence: 58%

Weathering steels: From empirical development to scientific design. A review

Morcillo¹,

Díaz²,

Chico³

et al. 2014

Corrosion Science

241

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The design of the first weathering steels was purely empirical and focused on a small number of conventional alloying elements such as manganese, silicon, chromium, nickel, copper and phosphorus, mainly. The environmental conditions that promote the formation of protective rust layers: existence of wet/dry cycling, absence of very long wetness times, atmospheres without a marine component, etc., were identified by trial and error. This paper makes a bibliographic review of the abundant literature that has been published on the atmospheric corrosion of weathering steels, setting out in chronological order the advances made in the scientific knowledge of important matters such as: atmospheric corrosion mechanisms of weathering steel, formation of protective rust layers, and the role played by alloying elements. The work ends with an overview of the scientific design of new weathering steels, placing special emphasis on the new compositions developed for application in marine atmospheres.

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Section: Chromium Steelssupporting

confidence: 58%

Weathering steels: From empirical development to scientific design. A review

Morcillo¹,

Díaz²,

Chico³

et al. 2014

Corrosion Science

241

View full text Add to dashboard Cite

show abstract

“…For samples with the tensile residual stress region of 13 000 × 10 000 × 350 μm 3 , when the corrosion depth was only 2 μm, the variation of residual stress distribution caused by the curvature of 1.6 × 10 -5 could be ignored. Considering plastic deformation energy approximates to zero for iron oxides, 34) the possibility of prevention of tensile stress by bending deformation in the rust layers can be ignored. In this case, the rust layer will deform with the steel matrix when the rust layer is well combined with the steel matrix.…”

Section: Rust Layer Analysismentioning

confidence: 99%

Improvement of Corrosion Resistance of Simulated Weld Heat Affected Zone in High Strength Pipeline Steel Using Electropulsing

Ding

Xiang

et al. 2020

ISIJ Int.

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Subjected to quenching processing, the samples of weld heat affected zone containing microstructures of martensite in high strength pipeline steel were simulated and prepared. Effects of electropulsing treatment on the corrosion resistance of simulated samples were studied through electrochemical detections and immersion corrosion experiments. It was found that the corrosion resistance of pipeline steel decreased sharply due to the high lattice strains/dislocation densities and residual tensile stress developed after martensite transformation by water quenching. Interestingly, treated by electropulsing the corrosion resistance of simulated weld heat affected zone samples was dramatically improved, and even exceeded that of the base metal when the current density achieved 5.2 kA/mm 2. After electropulsing treatment, the dislocation density and residual stress of the investigated samples were reduced largely, and the rust layer generated after corrosion was more compact, so that its corrosion resistance was improved.

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“…where, a is the crack length, c σ is the critical fracture stress, and c K is the critical fracture toughness of the rust. From Ouglova et al [Ouglova, Berthaud, Francois et al (2006); Zhang, Ma, Wu et al (2002)], Kc=2.60 MPa•m 0.5 , a =3.35 µm. Therefore, σc is calculated as 802 MPa.…”

Section: Figure 1: Fe Modelmentioning

confidence: 99%

“…From the literature [Zhang, Ma, Wu et al (2002)], 28 KIC=2.60 MPa• 0.5 m . Therefore, Gc is estimated as 506 N/m.…”

Section: Figure 1: Fe Modelmentioning

confidence: 99%

Numerical Simulation of Derusting Treatment of Steel Parts By Shot Blast

Li¹,

Yang²,

Liu³

et al. 2019

Computer Modeling in Engineering &Amp; Sciences

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In this paper, we investigated the shot blast treatment for derusting application through finite element (FE) simulations with a large number of random shots. The element deletion technique based on dynamic failure criteria was used to model the removal of rust. The cohesive surface model with damage evolution was used to characterize the decohesion of the rust/substrate interface. The effects of various processing and material parameters on the derusting effectiveness were examined. The results show that the rate of derusting mainly depends on the shot size, velocity and impinging angle, with little relevance to the rust thickness. The spalling of the rust fragments resulted from the decohesion of the rust/substrate interface were observed, especially during the later stage of the treatment. Furthermore, the residual stress and the surface roughness was also investigated and the beneficial effects of shot blast treatment in terms of these aspects were highlighted.

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Mechanical Properties of Native Rust Layer Formed on a Low Alloy Steel Exposed in Marine Atmosphere.

Cited by 13 publications

References 9 publications

Weathering steels: From empirical development to scientific design. A review

Weathering steels: From empirical development to scientific design. A review

Improvement of Corrosion Resistance of Simulated Weld Heat Affected Zone in High Strength Pipeline Steel Using Electropulsing

Numerical Simulation of Derusting Treatment of Steel Parts By Shot Blast

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