Corrosion of 16Cr12MoWSVNbB (EP-823) steel in the LiCl-KCl melt containing CeCl3, NdCl3 and UCl3

被引：5

作者：

Nikitina, E., V ^{[1
,2
]}

Kazakovtseva, N. A. ^{[1
]}

Karfidov, E. A. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Ural Branch, Inst High Temp Electrochem, Akad Skaya St 20, Ekaterinburg 620137, Russia

[2] Ural Fed Univ, Mira St 19, Ekaterinburg 620002, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 811卷

关键词：

corrosion; Molten salts; Steel; Chlorides of cerium; Neodymium; Uranium; SENSITIZATION;

D O I：

10.1016/j.jallcom.2019.152032

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The present work is aimed at the study of the 16Cr12MoWSVNbB (EP-823) steel corrosion in the molten LiCl-KCl eutectic with different CeCl3, NdCl3 and UCl3 content. The CeCl3 and NdCl3 concentrations varied within the range of 0.1-1.0 mol. %, and the UCl3 concentration was 1 mol. %. The temperature of the experiments was 500-650 degrees C. The composition of the melts under study was similar to the composition of real electrolytes while the nitride spent nuclear fuel processing. The gravimetric method with the exposure time from 8 to 100 h was the primary method of investigation. For analysis of samples atomic-adsorption, micro X-ray spectral and X-ray structural methods were used. The Fe was the most dissolvable component of the steel under study. Chromium and manganese have exhibited the smallest dissolution degrees. It was found out that the presence of UCl3 in the melt have the major impact on corrosion. The corrosion process proceeds with low rate and the corrosion mechanism was found to be electrochemical. (C) 2019 Elsevier B.V. All rights reserved.

引用

页数：8

共 13 条

[1] Electrochemical Properties of NdCl3 and CeCl3 in Molten LiCl-KCl Eutectic Salt
Kim, Seunghyun
Lee, Sang-hwan
APPLIED SCIENCES-BASEL, 2020, 10 (20): : 1 - 11
[2] The influence of oxide ions on the electrochemical behavior of UCl4 and UCl3 in a LiCl-KCl eutectic melt
Kuznetsov, SA
Hayashi, H
Minato, K
Gaune-Escard, M
ELECTROCHEMISTRY, 2005, 73 (08) : 630 - 632
[3] Electrochemical behavior and some thermodynamic properties of UCl4 and UCl3 dissolved in a LiCl-KCl eutectic melt
Kuznetsov, SA
Hayashi, H
Minato, K
Gaune-Escard, M
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (04) : C203 - C212
[4] 基于有限元方法的CeCl3和NdCl3在LiCl-KCl熔盐中的电极动力学模拟
顾徐波
周文涛
王德忠
无机盐工业, 2021, 53 (02) : 34 - 37
[5] Recovery of uranium using electrorefining with an anode-liquid cathode module (ALCM) in molten LiCl–KCl–UCl3–NdCl3 and cadmium distillation
Gha-Young Kim
Jiseon Shin
Si-Hyung Kim
Do-Hee Ahn
Seungwoo Paek
Journal of Radioanalytical and Nuclear Chemistry, 2016, 307 : 1551 - 1557
[6] Electrowinning of U-Pu onto inert solid cathode in LiCl-KCl eutectic melts containing UCl3 and PuCl3
Sakamura, Yoshiharu
Murakami, Tsuyoshi
Tada, Kohei
Kitawaki, Shinichi
JOURNAL OF NUCLEAR MATERIALS, 2018, 502 : 270 - 275
[7] Electrode reactions of Ce3+/Ce couple in LiCl-KCl solutions containing CeCl3 at solid W and liquid Cd electrodes
Kim, Si-Hyung
Paek, Seungwoo
Kim, Tack-Jin
Park, Dae-Yeob
Ahn, Do-Hee
ELECTROCHIMICA ACTA, 2012, 85 : 332 - 335
[8] Corrosion Behaviour of Uncoated and Ceramic Coated 9Cr–1Mo Steel in Molten LiCl–KCl–UCl3 Salt
Ch. Jagadeeswara Rao
T. P. Ismail
A. Ravi Shankar
Atul Ramesh Ballal
C. Mallika
U. Kamachi Mudali
Transactions of the Indian Institute of Metals, 2017, 70 : 1359 - 1367
[9] Conversion of UO2 to UCl3 using AlCl3 in LiCl-KCl eutectic melt in presence of lanthanide (Nd, Pr, Ce, La) oxides: a spectroscopic study
Samanta, Nibedita
Maji, S.
Kumar, Satendra
Venkatesh, P.
Chandra, Manish
Jain, Ashish
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY, 2022, 331 (12) : 5881 - 5892
[10] Corrosion of 12Kh18N10T Steel in the LiCl-KCl-nNdCl(3) Melt
Kazakovtseva, N. A.
Maikov, M. A.
Nikitina, E. V.
RUSSIAN METALLURGY, 2018, 2018 (08): : 767 - 770

← 1 2 →