Thermal aging behaviors of duplex stainless steels used in nuclear power plant: A review

Fan, Yongquan; Liu, T.G.; Xin, Long; Han, Yongming; Lu, Yonghao; Shoji, Tetsuo

doi:10.1016/j.jnucmat.2020.152693

Cited by 40 publications

(14 citation statements)

References 128 publications

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“…The first step in understanding potential biological consequences of radioactive particles would be to determine any toxicity of their nontritiated analogues or carrier particulates while analysing their characteristics using a range of analytical techniques. Many properties of stainless steel, including ready manufacture and high corrosion, impact and heat resistances make it well suited for use in the nuclear industry (Lo et al, 2009;Zinkle and Was, 2013;Fan et al, 2020). Varying forms of stainless steel (such as 304 L and 316 L grades) are predominantly used within containment vessels holding radioactive water or gas (e.g., reactor cooling system pipes and welds, reactor pressure vessel cladding and internal components, and reactor coolant pumps) (Cattant et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

Bioaccumulation, Release and Genotoxicity of Stainless-Steel Particles in Marine Bivalve Molluscs

Turner

Vernon²,

Jha³

et al. 2022

SSRN Journal

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Section: Introductionmentioning

confidence: 99%

Bioaccumulation, Release and Genotoxicity of Stainless-Steel Particles in Marine Bivalve Molluscs

Turner

Vernon²,

Jha³

et al. 2022

SSRN Journal

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“…Therefore, the demand for DSSs in various industries such as gas, petroleum, and chemical industries is continuously increasing. [ 1–7 ]…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Size on the Pitting Corrosion Resistance of Lean Duplex Stainless Steel

Lee

Park

et al. 2022

steel research int.

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The effects of grain refinement on the resistance to pitting corrosion and passive film properties of lean duplex stainless steel (Fe–18.28Cr–5.68Mn–2.38Mo–0.39W–0.30N–0.035C, wt%) are studied. For this purpose, the grain size of this alloy is adjusted to 3, 7, and 17 μm through an annealing process after cold rolling. The pitting corrosion resistance is evaluated through potentiodynamic polarization tests in aqueous solutions containing Cl−. The grain size reduction enhances the resistance to pitting corrosion of the alloy. Mott–Schottky analysis and X‐Ray photoelectron spectroscopy analysis on the passive films show that, as the grain size decreases, the density of point defects of the film decreases, the film thickness increases, and the cation fraction of Cr of the film increases. The improved resistance to pitting corrosion by grain refinement is attributed to the formation of the thick and dense passive film with a high Cr content.

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“…Practical experience from operated plant and laboratory studies demonstrated that the thermal aging significantly affects the mechanical properties of duplex stainless steel materials and limit the reliability of the components. Fan et al 2021 [ 12 ] highlight that the thermal aging embrittlement occurs after long-term service in the temperature range of 280–320 °C, leading to significant effects (degenerations in both the mechanical characteristics and corrosion resistance) on the microstructure of the stainless steel.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Analysis of Long-Term Performance of a Piping: Aging and Creep Effects

Cancemi

Frano

2021

Materials

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Combining global experience, comprehensive aging knowledge, and predictive methodologies provides ideal prerequisites for the long-term operation strategy (LTO) of a nuclear power plant (NPP). Applying management strategies with an understanding of the ways in which structures relevant for the plant safety perform and interact in their operating environments is of meaningful importance for operating the plant beyond its originally licensed service life. In performing aging studies on the nuclear systems, structure, and components (SSCs), the results are crucial for demonstrating the safety and reliability of the NPP beyond 30 years of nominal operation. In this study, the synergistic effect of a creep mechanism with the alteration suffered by piping material is analyzed by means of MSC©MARC finite element code. Nonlinear analyses were performed to calculate the effects of the long operational period on a primary pipe, assess its degradation, and determine its residual functionality. In these analyses, both homogeneous and inhomogeneous pipe wall thinning are considered, as well as the operating or expected thermal–mechanical loads. The obtained results indicate that thermo–mechanical loads are responsible for pipe deformation, which develops and increases as the transient progresses. Furthermore, an excessive (general or local) wall thinning may determine a dimensional change of the pipe, even causing bending or buckling.

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Thermal aging behaviors of duplex stainless steels used in nuclear power plant: A review

Cited by 40 publications

References 128 publications

Bioaccumulation, Release and Genotoxicity of Stainless-Steel Particles in Marine Bivalve Molluscs

Bioaccumulation, Release and Genotoxicity of Stainless-Steel Particles in Marine Bivalve Molluscs

Effect of Grain Size on the Pitting Corrosion Resistance of Lean Duplex Stainless Steel

Preliminary Analysis of Long-Term Performance of a Piping: Aging and Creep Effects

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