The Effects of hydrogen addition on the corrosive conditions of PWR primary coolant under irradiation, 7; Comparison of ECPs of stainless steel and Ni base alloy

Uchida, Shunsuke; Hata, Kuniki ; Hanawa, Satoshi ; Chimi, Yasuhiro

Stainless steel (Fe base alloy) and Ni base alloy are different in anodic polarization curves in high temperature water, which results in different ECP under the same water chemistry conditions. Based on analysis of the effects of temperature and pH on solubilities of Fe $^{2+}$ and Ni $^{2+}$ , the effects of radiolytic species, H $_{2}$ O $_{2}$ , O $_{2}$ and H $_{2}$ , on ECP are analyzed. As a result of the analysis, Ni base alloy showed a little lower ECP than that of stainless steel, and its pH dependence was different from that of stainless steel. The ECPs in the core, its peripherals and SG were analyzed based on radiolytic species concentrations shown in the previous presentation, which were applied to evaluation of the hydrogen injection effects on the major component in the primary cooling system.

Language	:	Japanese
Journal	:
Volume	:
Number	:
Pages	:
Publication Year/Month	:
Meeting title	:	日本原子力学会2022年秋の大会
Held date	:	2022/09
Location (city)	:	日立
Location (country)	:	日本
Patent information	:
PDF	:
Paper URL	:
DOI for research data	:	Link to research data related to this paper/report.
Keywords	:	PWR; 水の放射線分解; ECP解析; ステンレス鋼; Ni基合金
Research Facility	:
Press Release	:
JAEA R&D Navigator	:
Cooperating Institute	:

Accesses	:	- Accesses
Web of Science® Times Cited Count	:	Times Cited Count： If you would like to get the latest times cited, please access the Web of Science®. http://www.webofknowledge.com/wos
InCites™	:
Altmetrics	:

Registration No. : BB20220424
JAEA Abstracts No. :
Paper Submission No. :

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.