The effect of nickel on corrosion behaviour of high-strength low alloy steel rebar in simulated concrete pore solution

Tian, Yuwan; Dong, Chaofang; Gui, Wang; Cheng, Xuequn; Li, Yong

doi:10.1016/j.conbuildmat.2020.118462

Cited by 31 publications

(7 citation statements)

References 52 publications

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“…This increase can be likely attributed to Fe 3+ on its surface. According to previous studies, unalloyed carbon steel favors oxide products to form with richer Fe 3+ than those in nickel (Tian et al 2020) or chromium-bearing (Liu et al 2016) steels. The concentration of this ion dictates the rebar potential according to Nernst equation (Stefanoni et al 2019).…”

Section: Aementioning

confidence: 84%

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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Section: Aementioning

confidence: 84%

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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“…As the Mn/N ratio rises, the Fe 2+ /Fe 3+ ratio increases, but the Fe ox /Fe hy ratio decreases. Because Fe 2+ oxides decrease the corrosion resistance of the passivation film [42,43], thus an increase in Mn/N decreases the stability of the passivation film to some extent. Cr in the passivation film exists mostly in the form of Cr 2 O 3 and Cr(OH) 3 , and the presence of Cr 3+ in stainless steel is critical for passivation film to repair itself and maintain stability [44].…”

Section: Eis and Xps Analysismentioning

confidence: 99%

Investigation on the mechanical and pitting corrosion behaviour of solution-treated 22% Cr lean duplex stainless steel with different Mn/N ratio

Xia

Yang

et al. 2023

Ironmaking & Steelmaking

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Effect of Mn/N ratio on the microstructure evolution, mechanical and pitting corrosion properties of solution-treated 22% Cr lean duplex stainless steel (DSS) was investigated. As the Mn/N ratio decreased, tensile and yied strength, as well as elongation,increased due to the strengthening solid solution effect of more nitrogen addition, and two-phase equilibrium was obtained at 17.80 Mn/N ratio. The drop in the amount of Cr 2 N, more dislocation cell formation in ferrite and the increase of slip bands in austenite contributed to an increase in toughness with increasing Mn/N ratio from 3.28 to 17.80, whereas more σ precipitates and ferrite fraction resulted in a decrease of it at 54.14 Mn/N ratio. Moreover, higher pitting corrosion resistance was obtained for 17.80 Mn/N ratio DSS than that for 2205 DSS due to the thicker and more compact passive film formation, but higher Mn/N ratio of 54.14 decreased it with more loose MnO formation.

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“…Alloying elements could be concentrated in the corrosion product film, which have an important influence on the protection of corrosion products film and corrosion resistance of low alloy steel [44]. Cr as a common element in low alloy high strength steel is always enriched in the inner layer of the corrosion product film, which can promote the formation of a dense inner layer film, thereby improving the corrosion resistance of low alloy steel [45]. At the same time, the presence of nickel will change the composition and corrosion resistance of the corrosion product layer, which could enrich in the corrosion production film and decrease the defects density.…”

Section: Effect Of Alloy Composition On the Corrosion Production Film Of Low Alloy Steelmentioning

confidence: 99%

Effect of microstructure on corrosion behavior of high strength martensite steel—A literature review

Wang

Dong

Cheng

et al. 2021

Int J Miner Metall Mater

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The high strength martensite steels are widely used in aerospace, ocean engineering, etc., due to their high strength, good ductility and acceptable corrosion resistance. This paper provides a review for the influence of microstructure on corrosion behavior of high strength martensite steels. Pitting is the most common corrosion type of high strength stainless steels, which always occurs at weak area of passive film such as inclusions, carbide/intermetallic interfaces. Meanwhile, the chromium carbide precipitations in the martensitic lath/prior austenite boundaries always result in intergranular corrosion. The precipitation, dislocation and grain/lath boundary are also used as crack nucleation and hydrogen traps, leading to hydrogen embrittlement and stress corrosion cracking for high strength martensite steels. Yet, the retained/reversed austenite has beneficial effects on the corrosion resistance and could reduce the sensitivity of stress corrosion cracking for high strength martensite steels. Finally, the corrosion mechanisms of additive manufacturing high strength steels and the ideas for designing new high strength martensite steel are explored.

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The effect of nickel on corrosion behaviour of high-strength low alloy steel rebar in simulated concrete pore solution

Cited by 31 publications

References 52 publications

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

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

Investigation on the mechanical and pitting corrosion behaviour of solution-treated 22% Cr lean duplex stainless steel with different Mn/N ratio

Effect of microstructure on corrosion behavior of high strength martensite steel—A literature review

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