Corrosion behavior of ferritic–martensitic steels SIMP and T91 in fast-flowing steam

Liu, Chao; Shen, Tielong; Chen, Yao; Chang, Hao; Wei, Kongfang; Niu, Lijuan; Ma, Zhongting

doi:10.1016/j.corsci.2021.109474

Cited by 24 publications

(14 citation statements)

References 40 publications

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“…The increase of flow rate will generally aggravate local corrosion. There are two reasons for this phenomenon: the fluid flow under dynamic condition promotes the mass transfer process of S-CO 2 to the specimen surface [84] and also promotes the electrochemical reaction of corrosion by changing the local chemical environment [85]. In addition, the flow of S-CO 2 fluid will produce shear stress on the sample surface [86] and destroy the continuity and compactness of the oxide layer on the surface of the alloy.…”

Section: Effect Of Flow Ratementioning

confidence: 99%

Review on the Corrosion Behaviour of Nickel-Based Alloys in Supercritical Carbon Dioxide under High Temperature and Pressure

et al. 2023

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Supercritical carbon dioxide (S-CO2) has the advantages of amphoteric liquid and gas, which possesses many unique characteristics, such as good compressibility, high density, high solubility, good fluidity and low viscosity. The Brayton cycle with S-CO2 is considered to have many promising applications, especially for power conversion industries. However, the corrosion and degradation of structural materials hinder the development and application of the Brayton cycle with S-CO2. Nickel-based alloys have the best corrosion resistance in S-CO2 environments compared to austenitic stainless steels and ferritic/martensitic steels. Thus, the present article mainly reviews the corrosion behaviour of nickel-based alloys in S-CO2 under high temperature and pressure. The effect of alloying elements and environment parameters on the corrosion behaviour of different nickel-based alloys are systematically summarized. The conclusion and outlook are given at the end.

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Section: Effect Of Flow Ratementioning

confidence: 99%

Review on the Corrosion Behaviour of Nickel-Based Alloys in Supercritical Carbon Dioxide under High Temperature and Pressure

et al. 2023

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“…A new ferritic/martensitic steel named Steel of the Institute of Modern Physics (SIMP), mainly referring to a Russian steel ÉP823, [19] was specifically designed for use in ADS. This Ni-free steel offers excellent resistance to oxidation and corrosion in LBE, [20][21][22][23] achieved through increased Si and Cr levels in the alloy. According to several studies of SIMP steel in comparison with a commercial F/M steel T91, higher Si and Cr contents do give rise to promising results in terms of forming protection barriers.…”

Section: Introductionmentioning

confidence: 99%

The effects of Si‐ion implantation and preoxidation on the corrosion behavior of a new steel SIMP in 550∘C ${\bf{55}}{{\bf{0}}}^{\circ }{\bf{C}}$ lead‐bismuth eutectic

Shen

et al. 2023

Materials & Corrosion

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To improve the corrosion resistance of SIMP steel, we have investigated Si‐ion implantation and preoxidation effects on the corrosion behavior of SIMP steel samples, which have been in stagnant lead‐bismuth eutectic (LBE) with saturated oxygen at C for 1000 h. It was found that increasing Si content on the surface did not improve corrosion resistance performance. By contrast, the preoxidized sample demonstrated high resistance to LBE corrosion due to the presence of a thin Cr‐enriched oxide layer.

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“…[ 12 ] Therefore, the oxidation behavior of ferritic/martensitic steels has been one of the main issues under investigation. [ 9–15 ]…”

Section: Introductionmentioning

confidence: 99%

“…

Ferritic/martensitic steels have been developed as candidate core structure materials for Generation IV systems (sodium-cooled fast reactor, lead-cooled fast reactor, and supercritical watercooled reactor). [1][2][3] However, the complex operating environments of Generation IV systems, such as high-dose irradiation, strong corrosion, and high temperature, [4,5] favor the oxidation of ferritic/martensitic steels, [6][7][8][9][10][11] then destroy the integrity of structure, and eventually reduce their mechanical properties. [12] Therefore, the oxidation behavior of ferritic/martensitic steels has been one of the main issues under investigation.

…”

mentioning

confidence: 99%

“…[12] Therefore, the oxidation behavior of ferritic/martensitic steels has been one of the main issues under investigation. [9][10][11][12][13][14][15] Micro-alloying is an effective method to improve the high-temperature oxidation resistance of steels. Elements, like Cr, Si, Al, and Mn, are usually added to improve the oxidation resistance of steels by forming protective oxide layers, Cr 2 O 3 , SiO 2 , Al 2 O 3 , and Mn oxides, respectively.…”

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confidence: 99%

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The Effect of Zr on the High‐Temperature Oxidation Resistance of 12Cr Ferritic/Martensitic Steels

Zeng

Zhou

Yang

et al. 2022

steel research int.

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The high‐temperature oxidation resistance of 12Cr ferritic/martensitic steels with Zr contents in the range of 0–1.3607 wt% is investigated at 650 and 800 °C in air. The results show that the oxidation resistance of steels is improved by adding Zr. The oxide layer on the surface of steels after oxidation is mainly composed of MnCr2O4 and Cr2O3, where traces of Mn2O3 and ZrO2 oxides can also be detected there. The oxide layer of steels consists of two layers, that is, the outer Mn‐rich oxides (MnCr2O4, Mn2O3) and the inner Cr‐rich oxides (Cr2O3). For none‐Zr steels oxidized at 650 °C, Cr2O3 oxides are also formed in the outer layer. The addition of Zr promotes the outer oxides to change from Cr2O3 oxides to MnCr2O4 oxides and reduces the growth rate of MnCr2O4 oxides. The effect of Zr on the high‐temperature oxidation resistance of steels can be attributed to its promoting effect on the formation of outer Mn‐rich oxides, which can refine the size of outer Mn‐rich oxides and form a dense outer oxide layer. The dense outer oxide layer can inhibit the inward diffusion of oxygen and improve the oxidation resistance of steel.

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Corrosion behavior of ferritic–martensitic steels SIMP and T91 in fast-flowing steam

Cited by 24 publications

References 40 publications

Review on the Corrosion Behaviour of Nickel-Based Alloys in Supercritical Carbon Dioxide under High Temperature and Pressure

Review on the Corrosion Behaviour of Nickel-Based Alloys in Supercritical Carbon Dioxide under High Temperature and Pressure

The effects of Si‐ion implantation and preoxidation on the corrosion behavior of a new steel SIMP in 550∘C ${\bf{55}}{{\bf{0}}}^{\circ }{\bf{C}}$ lead‐bismuth eutectic

The Effect of Zr on the High‐Temperature Oxidation Resistance of 12Cr Ferritic/Martensitic Steels

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