Effect of thermal treatment on the corrosion resistance of Type 316L stainless steel exposed in supercritical water

Jiao, Yanpeng; Zheng, W.; Guzonas, David; Cook, William G.; Kish, Joseph R.

doi:10.1016/j.jnucmat.2015.04.030

Cited by 17 publications

(4 citation statements)

References 27 publications

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“…4,25,33 The trend established in the literature is that increasing Ni content results in a decreased mass gain rate. 4,25,33 The experiments conducted to determine the mass gain rate for these materials were performed at exposure times ranging from 96 to 3000 h. 4,21,25,33 Through the use of EFM, corrosion rates were calculated that duplicated the trend established in the literature, i.e., that increasing Ni content results in lower corrosion. While the corrosion rates calculated through the use of EIS did not follow this trend, the values for polarization resistances were comparable to the trends in the literature.…”

Section: Discussionmentioning

confidence: 99%

Accelerated estimation of corrosion rate in supercritical and ultra-supercritical water

Rodriguez

Chidambaram

2017

npj Mater Degrad

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This study explores a methodology for the determination of the accelerated corrosion rate of candidate materials to be used in advanced supercritical and ultra-supercritical water-based thermal reactors. Electrochemical impedance spectroscopy and electrochemical frequency modulation were used to evaluate the corrosion rates of SAE 316 stainless steel, Nitronic 50, Inconel 718, and Inconel 625 in supercritical water at 530°C and in ultra-supercritical water at 600°C. The results were compared to the results of gravimetric studies that were performed to determine the viability of the utilization of electrochemical analyses in supercritical and ultra-supercritical water. For all of the conditions that were tested, results showed that the corrosion rates during electrochemical testing had trends that were similar to the long-term gravimetric results. Thus, the hybrid methodology described in this manuscript can reduce testing times from >1000 h to~10 h.

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Section: Discussionmentioning

confidence: 99%

Accelerated estimation of corrosion rate in supercritical and ultra-supercritical water

Rodriguez

Chidambaram

2017

npj Mater Degrad

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“…To enhance the effectiveness of Cr in the material, surface modification may be needed for fuel cladding components using steels with bulk Cr content < 16 wt-% [28,29,42,45]. According to Publication V and open literature, modification of a material's surface by changing the grain structure through cold of type 316L in SCW [28,40].…”

Section: Steel Alloys and Design Criteriamentioning

confidence: 99%

Oxidation model for construction materials in supercritical water—Estimation of kinetic and transport parameters

et al. 2015

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“…19) The hightemperature solution treatment, which is a conventional treatment method, is typically used for aged materials. [20][21][22] However, this ex-situ treatment cannot be easily applied to difficult-to-disassemble components, such as the pressure vessel and primary circuit main pipe of nuclear reactors. Therefore, it is of considerable importance to determine an on-line method to repair the properties of aged structural steels.…”

Section: Introductionmentioning

confidence: 99%

Anti-corrosion Performance Regeneration in Aged Austenitic Stainless Steel by Precipitate Dissolution Below Critical Temperature Using Electropulsing

Cheng

Zhang

2020

ISIJ Int.

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Precipitates that form at high temperatures detrimentally affect the mechanical properties and corrosion resistance of engineering structural materials. Different from the typical solution treatment, a method that incorporates electropulsing is proposed in this study. Electropulsing is applied to aged 316LN austenitic stainless steel, which undergoes the aging process at 650°C for 2 000 h, microstructure characterization by SEM and TEM shows that electropulsing can aid in dissolving precipitates. Both the immersion and electrochemical tests showed a positive shift at corrosion potential and a decrease in the corrosion current density caused by electropulsing, and the corrosion resistance was improved. The change in the system's free energy caused by the difference in the electrical conductivity between precipitates and matrix results in precipitate dissolution. This finding provides a technical reference for engineering applications, i.e., the on-line repair of properties in aged steels.

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Effect of thermal treatment on the corrosion resistance of Type 316L stainless steel exposed in supercritical water

Cited by 17 publications

References 27 publications

Accelerated estimation of corrosion rate in supercritical and ultra-supercritical water

Accelerated estimation of corrosion rate in supercritical and ultra-supercritical water

Oxidation model for construction materials in supercritical water—Estimation of kinetic and transport parameters

Anti-corrosion Performance Regeneration in Aged Austenitic Stainless Steel by Precipitate Dissolution Below Critical Temperature Using Electropulsing

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