Effect of Metallic Li on the Corrosion Behavior of Inconel 625 in Molten LiCl-Li2O-Li

被引：9

作者：

Phillips, William ^{[1
]}

Karmiol, Zachary ^{[1
,2
]}

Chidambaram, Dev ^{[1
,3
]}

机构：

[1] Univ Nevada, Mat Sci & Engn, Reno, NV 89557 USA

[2] Univ Nevada, Reno Electron Microscopy & Microanal Facil, Reno, NV 89557 USA

[3] Nevada Inst Sustainabil, Reno, NV 89557 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2019年 / 166卷 / 06期

关键词：

ELECTROLYTIC REDUCTION; LITHIUM-CHLORIDE; SALTS; ALLOYS; NICKEL; MISCIBILITY; PERFORMANCE;

D O I：

10.1149/2.0201906jes

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The corrosion behavior of Inconel 625 in molten LiCl solutions maintained at 650 degrees C and containing various quantities of Li2O and metallic Li was studied for possible application in the electroreduction of used oxide-based nuclear fuel. This study focusses on the morphological and elemental changes on the surface of the samples with an emphasis on cross-sectional analyses conducted using focused ion beam microscopy. In the absence of metallic Li, a stable oxide film is formed that limits the corrosion of the base material to 0.07mm/year. However, in the presence of metallic Li, the formation of this film is impeded, resulting in dealloying of the base material and the formation of a highly porous microstructure composed primarily of Ni. (C) The Author(s) 2019. Published by ECS.

引用

页码：C162 / C168

页数：7

共 40 条

[1] Allen T. R., 2013, CORROSION MOLTEN SAL
[2] Bredig M.A., 1963, Mixtures of Metals with Molten Halides
[3] Measurement of Solubility of Metallic Lithium Dissolved in Molten LiCl-Li2O
Burak, Adam J.
Simpson, Michael F.
[J]. JOM, 2016, 68 (10) : 2639 - 2645
[4] Corrosion behavior of Fe-Ni-Cr alloys in the molten salt of LiCl-Li2O at high temperature
Cho, SH
Zhang, JS
Shin, YJ
Park, SW
Park, HS
[J]. JOURNAL OF NUCLEAR MATERIALS, 2004, 325 (01) : 13 - 17
[5] Effects of alloying elements of nickel-based alloys on the hot-corrosion behavior in an electrolytic reduction process
Cho, Soo-Haeng
Lee, Sang-Kwon
Kim, Dae-Young
Lee, Jong-Hyeon
Hur, Jin-Mok
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 695 : 2878 - 2885
[6] Cyclic Corrosion Behavior of Ni-Based Superalloys in Hot Lithium Molten Salt
Cho, Soo-Haeng
Park, Seong-Bin
Lee, Jong-Hyeon
Hur, Jin-Mok
Lee, Han-Soo
[J]. OXIDATION OF METALS, 2012, 78 (3-4): : 153 - 165
[7] Feasibility tests of nickel as a containment material of molten Li2O-LiCl salt containing Li metal at 650 °C during electrolytic reduction
Choi, Eun-Young
Lee, Jeong
[J]. JOURNAL OF NUCLEAR MATERIALS, 2017, 495 : 85 - 90
[8] MISCIBILITY OF METALS WITH SALTS .6. LITHIUM-LITHIUM HALIDE SYSTEMS
DWORKIN, AS
BREDIG, MA
BRONSTEIN, HR
[J]. JOURNAL OF PHYSICAL CHEMISTRY, 1962, 66 (03) : 572 - &
[9] FERRIS LM, 1973, J PHYS CHEM-US, V77, P2351, DOI 10.1021/j100638a018
[10] Corrosion behavior of intermetallic compound of TiAl-5Nb in molten LiCl-Li2O
Gao, Q
Liu, RY
Zhang, JS
Guo, JT
[J]. MATERIALS LETTERS, 2005, 59 (16) : 2052 - 2058

← 1 2 3 4 →