Effect of SO42- on the corrosion of 316L stainless steel in molten FLiNaK salt

被引：43
|
作者：
Qiu, Jie [1 ,2 ]
Leng, Bin [1 ]
Liu, Huajian [1 ]
Macdonald, Digby D. [2 ]
Wu, Angjian [2 ]
Jia, Yanyan [1 ]
Xue, Wandong [1 ]
Yu, Guojun [1 ]
Zhou, Xingtai [1 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Univ Calif Berkeley, Dept Nucl Engn, Berkeley, CA 94720 USA
来源：
CORROSION SCIENCE | 2018年 / 144卷
关键词：
Molten salt; FLiNaK; Corrosion; Sulphate; 316L stainless steel; MnS; MNS INCLUSIONS; HOT CORROSION; HASTELLOY-N; INITIATION; BEHAVIOR; ALLOYS;
D O I：
10.1016/j.corsci.2018.08.057
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of SO42- on the corrosion behavior of 316 L stainless steel (SS) in molten FLiNaK (LiF-NaF-KF: 46.5-11.5-42 mol.%) salt was studied. Results reveal that the SO42- in the salt remarkably accelerates the corrosion of 316 L SS by promoting the dissolution of Cr, leading to increasing intergranular corrosion of the alloy. On the other hand, the results of structural characterization indicate that the SO42- can react with Mn to form MnS at the grain boundaries of the alloy. The galvanic couple between MnS and steel matrix could further accelerate the intergranular corrosion of 316 L SS in molten fluoride salt environments.
引用
收藏
页码：224 / 229
页数：6
相关论文
共 50 条
  • [21] A Method for Inhibiting Corrosion of Type 316L Stainless Steel in High-Temperature Molten Chloride Salt
    D'Souza, Brendan
    Leong, Amanda
    Zhang, Jinsuo
    NUCLEAR SCIENCE AND ENGINEERING, 2024, 198 (03) : 749 - 753
  • [22] Corrosion Mechanism and Properties of 316L Stainless Steel in NaCl-KCl Molten Salt at High Temperatures
    Lv, Ruimin
    Tang, Xian
    Ying, Zhemian
    Ai, Hua
    Sun, Hua
    Zhang, Wei
    Wang, Ying
    Cheng, Jinjuan
    Yan, Long
    CRYSTALS, 2025, 15 (03)
  • [23] Corrosion characteristics of 316L stainless steel in oxide-rich molten solar salt at 600 °C
    Swaminathan, Srinivasan
    Kumar, Sumit
    Kranzmann, Axel
    Hesse, Rene
    Goldbeck, Hennig
    Fantin, Andrea
    SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2024, 278
  • [24] Initiation and growth of a single pit on 316L stainless steel: Influence of SO42- and ClO4- anions
    Aouina, N.
    Balbaud-Celerier, F.
    Huet, F.
    Joiret, S.
    Perrot, H.
    Rouillard, F.
    Vivier, V.
    ELECTROCHIMICA ACTA, 2013, 104 : 274 - 281
  • [25] Effect of tellurium concentration on the corrosion and mechanical properties of 304 stainless steel in molten FLiNaK salt
    Hong, Minsung
    Chan, Ho Lun
    Xie, Yujun
    Romanovskaia, Elena
    Scully, John R.
    Hosemann, Peter
    CORROSION SCIENCE, 2023, 212
  • [26] Electrochemical corrosion behavior of 316L stainless steel in molten fluorides with a temperature gradient
    Wang, Yanli
    Wu, Jiajie
    Wang, Changxuan
    Zhang, Shenghua
    ELECTROCHEMISTRY COMMUNICATIONS, 2019, 109
  • [27] Effect of Grain Refinement on the Corrosion Resistance of 316L Stainless Steel
    Ura-Binczyk, Ewa
    MATERIALS, 2021, 14 (24)
  • [28] Effect of silane coating on corrosion resistance of 316l stainless steel
    Lin, Yuan-Hua
    Ma, Yu-Cong
    Talha, Mohd
    Li, Bing
    Shi, Yun-Sheng
    Sun, Zhi-Peng
    Tang, Liang
    Surface Technology, 2019, 48 (02): : 220 - 225
  • [29] Effect of TIG welding on corrosion behavior of 316L stainless steel
    Dadfar, M.
    Fathi, M. H.
    Karimzadeh, F.
    Dadfar, M. R.
    Saatchi, A.
    MATERIALS LETTERS, 2007, 61 (11-12) : 2343 - 2346
  • [30] Dendrite corrosion of 316L stainless steel weld joint in NaCl-MgCl2 molten salt loop
    Wang, Yafei
    Falconer, Cody
    Couet, Adrien
    NPJ MATERIALS DEGRADATION, 2025, 9 (01)
12345