Corrosion behavior of nickel‐containing weathering steel in simulated marine atmospheric environment

Cheng, Xuequn; Tian, Yuwan; Li, Yong; Zhou, Chenyang

doi:10.1002/maco.201307447

Cited by 48 publications

(10 citation statements)

References 23 publications

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“…It is well known that the corrosion products of WS under atmospheric corrosion are composed of a small amount of Fe 3 O 4 , α -FeOOH, γ -FeOOH and more amounts of amorphous substances (Kimura et al , 2005; Misawa et al , 1971; Suzuki et al , 1981). Among these corrosion products, α -FeOOH is electrochemically and thermodynamically stable (Yamashita et al , 1994; Cheng et al , 2014). Therefore, it is an important part of the stable rust layer of WS, which directly determines whether the rust layer is compact and protected.…”

Section: Resultsmentioning

confidence: 99%

Effect of Sn on the corrosion behavior of weathering steel in a simulated tropical marine atmosphere

Jiang

Yang

Cheng

et al. 2020

ACMM

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Purpose This study aims to study the effect of Sn on the corrosion behavior of weathering steel (WS) in a simulated tropical marine atmosphere. Design/methodology/approach Indoor alternate immersion tests, electrochemical measurements and real-time current-monitoring technology based on the galvanic corrosion principle were used and the scanning electron microscope, X-ray diffraction, X-ray photoelectron spectroscopy and electron probe microanalyzer were used to analyze the morphology and component of the rust layer. Findings The results indicated that Sn has a positive influence on the corrosion process. Sn participated in the composition of the rust layer in the form of SnO2 and is enriched in the inner rust layer. SnO2 participated in the coprecipitation process with iron oxides and oxyhydroxides, which promoted further transformation of γ-FeOOH to α-FeOOH. As a result, the rust layer of Sn-containing steel was continuous, compact and effectively blocked the invasion of aggressive Cl−. Therefore, the additive of Sn enhanced the corrosion resistance of WS in a simulated tropical marine atmosphere. Originality/value The corrosion behaviors of WS were researched by the real-time current-monitoring technology which was rarely used.

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Section: Resultsmentioning

confidence: 99%

Effect of Sn on the corrosion behavior of weathering steel in a simulated tropical marine atmosphere

Jiang

Yang

Cheng

et al. 2020

ACMM

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“…), totaling to a maximum added alloys of 3 to 5 wt.% (Cano et al 2018). Weathering steel is a promising alternative to carbon steel because of small addition of expensive and corrosion-resistant metals, while providing better mechanical properties (Cheng et al 2014). WS was initially designed to contain chromium (Cr) content up to 1% by weight.…”

Section: Introductionmentioning

confidence: 99%

Behavior of High-Nickel Type Weathering Steel Bars in Simulated Pore Solution and Mortar under Chloride-Containing Environment

Benito

Ueno

Fukuyama

2021

ACT

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Weathering steel (WS) is known to develop higher corrosion resistance than ordinary steel under atmospheric condition due to the formation of a protective, dense rust layer. This aspect, however, has not been studied so far in cement-based materials, which are characterized by high alkalinity and limited oxygen. To address the need for durable RC structure in extreme environments, it is necessary to study the behavior of WS in concrete. Here, a basic investigation was conducted to compare the short-term behavior of a newly developed WS with 1% Ni (NT) to conventional WS with 1% Cr (CT) and carbon steel (PC). One set of steel bars was exposed to solutions with varying air and pH to simulate concrete condition under chloride-containing environment. Another set was embedded in mortar under wet-dry cycle. Corrosion degree based on mass loss, coupled with half-cell potential, and corroded area was obtained. Results indicate that alkalinity or low oxygen appreciably reduces the corrosion rate of steels regardless of composition. These conditions make the corrosion behavior of NT comparable with other conventional steels. It is recommended to explore using longer time and wider cracks in future studies to achieve clearer difference between the steels.

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“…By adding certain amounts of corrosion-resistant elements, a dense rust layer is formed on the steel surface, which can impede further corrosion process of the substrate to achieve improvement of the steel corrosion resistance [4][5][6][7][8] . The recent researches have suggested that addition of Cr, Cu, or P alloying elements can significantly improve the rust layer structure stability of the weathering steel, thereby improving its applicability in severe industrial and marine environments [9][10][11][12][13][14][15] .…”

Section: Introductionmentioning

confidence: 99%

The role of chromium content in the long-term atmospheric corrosion process

et al. 2020

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The corrosion of alloy steels with different amounts of Cr was studied using electrochemical tests, wet–dry cycle corrosion, X-ray diffraction, and Kelvin probe force microscopy. The results show that the content of Cr is positively correlated with the corrosion resistance of bare steel, but the corrosion resistance of atmospheric corrosion does not show the same pattern. The atmospheric corrosion resistance of Cr-containing steel exhibits three different stages with the change of Cr element content. When the Cr content is in the range of 1–4%, the corrosion rate is high and does not change within the Cr content. As the Cr content was further increased from 4 to 7%, the corrosion rate exhibited a linear decrease and then drops rapidly when the Cr content reaches 8%. These three different corrosion rate stages are related to the influence of Cr content on Fe3O4 content in the rust layer.

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Corrosion behavior of nickel‐containing weathering steel in simulated marine atmospheric environment

Cited by 48 publications

References 23 publications

Effect of Sn on the corrosion behavior of weathering steel in a simulated tropical marine atmosphere

Effect of Sn on the corrosion behavior of weathering steel in a simulated tropical marine atmosphere

Behavior of High-Nickel Type Weathering Steel Bars in Simulated Pore Solution and Mortar under Chloride-Containing Environment

The role of chromium content in the long-term atmospheric corrosion process

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