Corrosion behavior of stainless steels in simulated PWR primary water: The effect of composition and matrix phases

被引：34

作者：

Xiao, Qian ^{[1
]}

Jang, Changheui ^{[1
]}

Kim, Chaewon ^{[1
]}

Kim, Hyunmyung ^{[2
]}

Chen, Junjie ^{[1
]}

Lee, Hyeon Bae ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Deajeon 34141, South Korea

[2] Korea Atom Energy Res Inst, Deajeon 34057, South Korea

来源：

CORROSION SCIENCE | 2020年 / 177卷

关键词：

Stainless steels; Oxide film; PWR primary water; Cr content; B2-NiAl; OXIDE-FILMS; OXIDATION RESISTANCE; FECRAL ALLOYS; TEMPERATURE; HYDROGEN; EMBRITTLEMENT; STEAM; PH; NI;

D O I：

10.1016/j.corsci.2020.108991

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Corrosion behavior in simulated pressurized water reactor (PWR) primary water was investigated for stainless steels with 16 and 22 wt% Cr having austenitic, ferritic, and duplex microstructure. For alloys with 22 wt% Cr, the Cr-rich inner oxide layer consisted of Cr2O3 and FeCr2O4 is formed. For alloys with 16 wt% Cr, the Cr-rich spinel inner oxide layer is formed. In-situ and ex-situ electrochemical impedance analyses and Mott-Schottky analysis was used to rank the corrosion resistance of the alloys. In addition to chemical composition, the phases (ferrite, austenite, and B2-NiAl) also affect the corrosion behaviors of the alloys.

引用

页数：16

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