Short communication: "Effect of dissolved hydrogen on the early corrosion behavior of 316 stainless steel in simulated PWR environments"

被引：6

作者：

Lee, Hyeon Bae ^{[1
]}

Jang, Changheui ^{[1
]}

机构：

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

来源：

JOURNAL OF NUCLEAR MATERIALS | 2024年 / 591卷

基金：

新加坡国家研究基金会;

关键词：

Dissolved hydrogen; 316 stainless steel; Early corrosion; HIGH-TEMPERATURE; OXIDE-FILMS; PASSIVE FILMS; CHROMIUM; ALLOYS; IRON; OXIDATION; NICKEL; WATER; ZN;

D O I：

10.1016/j.jnucmat.2024.154907

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In simulated pressurized water reactor environments, the corrosion test on 316 stainless steel was conducted for 40 to 4000 s, with 25 and 50 cc/kg-H2O dissolved hydrogen concentrations (NH and HH). It was found that the external Fe-rich oxide particles and the inner Cr-rich layer were simultaneously formed at the beginning of corrosion. However, the first formed Cr-rich layer was mainly Cr(OH)3 in the NH condition, while Cr2O3 in the HH condition. As exposure time increased, fraction of Cr2O3 increased due to transformation from Cr(OH)3 in both conditions. In addition, for HH condition, partial transformation to FeCr2O4 was observed.

引用

页数：6

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