Effects of boric acid and lithium hydroxide on the corrosion behaviors of 316LN stainless steel in simulating hot functional test high-temperature pressurized water

被引：13
作者：
Peng, Liyuan [1 ,2 ]
Zhang, Ziyu [1 ]
Tan, Jibo [1 ]
Wu, Xinqiang [1 ]
Han, En-Hou [1 ]
Ke, Wei [1 ]
机构：
[1] Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Liaoning Key Lab Safety & Assessment Tech Nucl Ma, Shenyang 110016, Peoples R China
[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Hefei 230026, Peoples R China
来源：
CORROSION SCIENCE | 2022年 / 198卷
基金：
中国国家自然科学基金;
关键词：
A; 316LN SS; B; EIS; TEM; C; Boric acid corrosion; Lithium hydroxide corrosion; High temperature corrosion; REVISED POURBAIX DIAGRAMS; OXIDE-FILM FORMATION; ALLOY; 690; AQUEOUS CORROSION; MECHANISM; 304-STAINLESS-STEEL; ZN; NICKEL; PH; TRANSPORT;
D O I：
10.1016/j.corsci.2022.110157
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effects of boric acid and lithium hydroxide on corrosion behaviors of 316LN stainless steel (SS) in simulating hot functional test (HFT) high-temperature pressurized water at 573 K are investigated. Increasing the con-centration of boric acid or lithium hydroxide degrades the corrosion resistance of 316LN SS. Boric acid is rec-ommended for HFT water chemistry, while lithium hydroxide alone is inappropriate as HFT water chemistry. The solubility of oxides in high-temperature pressurized water is calculated and the mechanism of oxidation is dis-cussed. A promising HFT water chemistry is also proposed.
引用
收藏
页数：14
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