Effect of hydrogen on electrochemical behavior of additively manufactured 316L in pressurized water reactor primary water

被引：4

作者：

Bojinov, Martin ^{[1
]}

Saario, Timo ^{[2
]}

Ge, Yanling ^{[2
]}

Chang, Litao ^{[3
]}

Que, Zaiqing ^{[2
]}

机构：

[1] Univ Chem Technol & Met, Dept Phys Chem, Kl Ohridski Blvd 8, Sofia 1756, Bulgaria

[2] VTT Tech Res Ctr Finland, Adv Mat Nucl Energy, Kivimiehentie 3, FI-02044 Espoo, Finland

[3] Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jialuo Rd, Shanghai 201800, Peoples R China

来源：

CORROSION SCIENCE | 2023年 / 224卷

关键词：

Additive manufacturing; Corrosion; Stainless steel; High-temperature water; Dissolved hydrogen; Laser powder bed fusion; STAINLESS-STEEL; 316L; CORROSION-RESISTANCE; REPASSIVATION KINETICS; MECHANICAL-PROPERTIES; CRACK-GROWTH; MICROSTRUCTURE; OXIDE; ALLOYS;

D O I：

10.1016/j.corsci.2023.111557

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The electrochemical behavior of laser powder bed fusion (LPBF) 316 L stainless steel subject to different heat-treatments (solution annealing and hot isostatic pressing) is compared to nuclear-grade wrought 316 L in pressurized water reactor primary water at 288 degrees C (with and without dissolved hydrogen) using current-time transients, cyclic voltammetry and electrochemical impedance spectroscopy (EIS). Analysis of spectra by the Mixed-Conduction Model revealed slower corrosion rates of LPBF 316 L than wrought 316 L, the effect being more pronounced in the presence of dissolved hydrogen. The characteristics of the barrier layer and the oxide film/coolant interface were irreversibly altered upon removal of dissolved hydrogen.

引用

页数：15

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