Corrosion characteristics of copper in static liquid lithium under high vacuum

X. C. Meng, C. Xu, G. Z. Zuo, M. Huang, K. Tritz, Daniel Andruczyk, Z. Sun, W. Xu, Y. Z. Qian, J. J. Huang, X. Gao, B. Yu, J. G. Li, J. S. Hu, Huiqiu Deng

Research output: Contribution to journalArticle

Abstract

Copper (Cu) materials are extensively used as heat sinks and sealing gaskets in fusion devices because they have the properties of good thermal and electrical conductivity and high plasticity. Meanwhile, liquid lithium (Li) is considered as a potential blanket coolant and tritium breeder and/or plasma facing material in fusion devices. Studying the corrosion characteristics of Cu materials by liquid Li under extreme fusion conditions is important because the corrosion of Cu by liquid Li may affect simultaneous application of these materials in fusion devices. The corrosion behavior of Cu in static liquid Li at 620 K for 15 h under high vacuum was investigated. After exposure to liquid Li, the weight loss rate of Cu in liquid Li is 466.1 g m−2 h−1, which is equivalent to 458.7 mm⋅a−1 for the average corrosion depth rate. The entire surface of each specimen was seriously damaged. Visible grain boundary corrosion was observed on the surface of the specimens. Also, Cu debris entered the liquid Li from the corroded surface, resulting in considerable Cu loss from the specimen. These results demonstrate a corrosion protection grade of Cu in liquid Li of 10, Cu cannot withstand the corrosion of liquid Li under the given conditions. Additionally, the corrosion process of Cu in liquid Li at 620 K under high vacuum was studied using the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). The results from these simulations indicate that the corrosion of Cu in liquid Li is induced via physical dissolution and intergranular corrosion, where intergranular corrosion is the dominant mechanism.

Original languageEnglish (US)
Pages (from-to)282-292
Number of pages11
JournalJournal of Nuclear Materials
Volume513
DOIs
StatePublished - Jan 2019

Fingerprint

liquid lithium
high vacuum
Lithium
Copper
corrosion
Vacuum
Corrosion
copper
Liquids
Fusion reactions
fusion
intergranular corrosion
gaskets
Gaskets
Tritium
blankets
heat sinks
sealing
Heat sinks
Corrosion protection

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Nuclear Energy and Engineering

Cite this

Corrosion characteristics of copper in static liquid lithium under high vacuum. / Meng, X. C.; Xu, C.; Zuo, G. Z.; Huang, M.; Tritz, K.; Andruczyk, Daniel; Sun, Z.; Xu, W.; Qian, Y. Z.; Huang, J. J.; Gao, X.; Yu, B.; Li, J. G.; Hu, J. S.; Deng, Huiqiu.

In: Journal of Nuclear Materials, Vol. 513, 01.2019, p. 282-292.

Research output: Contribution to journalArticle

Meng, XC, Xu, C, Zuo, GZ, Huang, M, Tritz, K, Andruczyk, D, Sun, Z, Xu, W, Qian, YZ, Huang, JJ, Gao, X, Yu, B, Li, JG, Hu, JS & Deng, H 2019, 'Corrosion characteristics of copper in static liquid lithium under high vacuum', Journal of Nuclear Materials, vol. 513, pp. 282-292. https://doi.org/10.1016/j.jnucmat.2018.10.037
Meng, X. C. ; Xu, C. ; Zuo, G. Z. ; Huang, M. ; Tritz, K. ; Andruczyk, Daniel ; Sun, Z. ; Xu, W. ; Qian, Y. Z. ; Huang, J. J. ; Gao, X. ; Yu, B. ; Li, J. G. ; Hu, J. S. ; Deng, Huiqiu. / Corrosion characteristics of copper in static liquid lithium under high vacuum. In: Journal of Nuclear Materials. 2019 ; Vol. 513. pp. 282-292.
@article{9d7ddb4214c842dfb500afffb584a627,
title = "Corrosion characteristics of copper in static liquid lithium under high vacuum",
abstract = "Copper (Cu) materials are extensively used as heat sinks and sealing gaskets in fusion devices because they have the properties of good thermal and electrical conductivity and high plasticity. Meanwhile, liquid lithium (Li) is considered as a potential blanket coolant and tritium breeder and/or plasma facing material in fusion devices. Studying the corrosion characteristics of Cu materials by liquid Li under extreme fusion conditions is important because the corrosion of Cu by liquid Li may affect simultaneous application of these materials in fusion devices. The corrosion behavior of Cu in static liquid Li at 620 K for 15 h under high vacuum was investigated. After exposure to liquid Li, the weight loss rate of Cu in liquid Li is 466.1 g m−2 h−1, which is equivalent to 458.7 mm⋅a−1 for the average corrosion depth rate. The entire surface of each specimen was seriously damaged. Visible grain boundary corrosion was observed on the surface of the specimens. Also, Cu debris entered the liquid Li from the corroded surface, resulting in considerable Cu loss from the specimen. These results demonstrate a corrosion protection grade of Cu in liquid Li of 10, Cu cannot withstand the corrosion of liquid Li under the given conditions. Additionally, the corrosion process of Cu in liquid Li at 620 K under high vacuum was studied using the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). The results from these simulations indicate that the corrosion of Cu in liquid Li is induced via physical dissolution and intergranular corrosion, where intergranular corrosion is the dominant mechanism.",
author = "Meng, {X. C.} and C. Xu and Zuo, {G. Z.} and M. Huang and K. Tritz and Daniel Andruczyk and Z. Sun and W. Xu and Qian, {Y. Z.} and Huang, {J. J.} and X. Gao and B. Yu and Li, {J. G.} and Hu, {J. S.} and Huiqiu Deng",
year = "2019",
month = "1",
doi = "10.1016/j.jnucmat.2018.10.037",
language = "English (US)",
volume = "513",
pages = "282--292",
journal = "Journal of Nuclear Materials",
issn = "0022-3115",
publisher = "Elsevier",

}

TY - JOUR

T1 - Corrosion characteristics of copper in static liquid lithium under high vacuum

AU - Meng, X. C.

AU - Xu, C.

AU - Zuo, G. Z.

AU - Huang, M.

AU - Tritz, K.

AU - Andruczyk, Daniel

AU - Sun, Z.

AU - Xu, W.

AU - Qian, Y. Z.

AU - Huang, J. J.

AU - Gao, X.

AU - Yu, B.

AU - Li, J. G.

AU - Hu, J. S.

AU - Deng, Huiqiu

PY - 2019/1

Y1 - 2019/1

N2 - Copper (Cu) materials are extensively used as heat sinks and sealing gaskets in fusion devices because they have the properties of good thermal and electrical conductivity and high plasticity. Meanwhile, liquid lithium (Li) is considered as a potential blanket coolant and tritium breeder and/or plasma facing material in fusion devices. Studying the corrosion characteristics of Cu materials by liquid Li under extreme fusion conditions is important because the corrosion of Cu by liquid Li may affect simultaneous application of these materials in fusion devices. The corrosion behavior of Cu in static liquid Li at 620 K for 15 h under high vacuum was investigated. After exposure to liquid Li, the weight loss rate of Cu in liquid Li is 466.1 g m−2 h−1, which is equivalent to 458.7 mm⋅a−1 for the average corrosion depth rate. The entire surface of each specimen was seriously damaged. Visible grain boundary corrosion was observed on the surface of the specimens. Also, Cu debris entered the liquid Li from the corroded surface, resulting in considerable Cu loss from the specimen. These results demonstrate a corrosion protection grade of Cu in liquid Li of 10, Cu cannot withstand the corrosion of liquid Li under the given conditions. Additionally, the corrosion process of Cu in liquid Li at 620 K under high vacuum was studied using the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). The results from these simulations indicate that the corrosion of Cu in liquid Li is induced via physical dissolution and intergranular corrosion, where intergranular corrosion is the dominant mechanism.

AB - Copper (Cu) materials are extensively used as heat sinks and sealing gaskets in fusion devices because they have the properties of good thermal and electrical conductivity and high plasticity. Meanwhile, liquid lithium (Li) is considered as a potential blanket coolant and tritium breeder and/or plasma facing material in fusion devices. Studying the corrosion characteristics of Cu materials by liquid Li under extreme fusion conditions is important because the corrosion of Cu by liquid Li may affect simultaneous application of these materials in fusion devices. The corrosion behavior of Cu in static liquid Li at 620 K for 15 h under high vacuum was investigated. After exposure to liquid Li, the weight loss rate of Cu in liquid Li is 466.1 g m−2 h−1, which is equivalent to 458.7 mm⋅a−1 for the average corrosion depth rate. The entire surface of each specimen was seriously damaged. Visible grain boundary corrosion was observed on the surface of the specimens. Also, Cu debris entered the liquid Li from the corroded surface, resulting in considerable Cu loss from the specimen. These results demonstrate a corrosion protection grade of Cu in liquid Li of 10, Cu cannot withstand the corrosion of liquid Li under the given conditions. Additionally, the corrosion process of Cu in liquid Li at 620 K under high vacuum was studied using the Large-scale Atomic/Molecular Massively Parallel Simulator (LAMMPS). The results from these simulations indicate that the corrosion of Cu in liquid Li is induced via physical dissolution and intergranular corrosion, where intergranular corrosion is the dominant mechanism.

UR - http://www.scopus.com/inward/record.url?scp=85055962878&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85055962878&partnerID=8YFLogxK

U2 - 10.1016/j.jnucmat.2018.10.037

DO - 10.1016/j.jnucmat.2018.10.037

M3 - Article

AN - SCOPUS:85055962878

VL - 513

SP - 282

EP - 292

JO - Journal of Nuclear Materials

JF - Journal of Nuclear Materials

SN - 0022-3115

ER -