Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3
Pyroprocessing of spent nuclear fuels uses the LiCl–KCl molten salt as an electrolyte, which contains dissolved fission products and can be very corrosive to the structural alloys. This study investigates the effect of EuCl3 on the corrosion behavior of four commercial alloys: Haynes C276, Inconel 6...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2022-07-01
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| Series: | Frontiers in Materials |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fmats.2022.958296/full |
| _version_ | 1818190801725816832 |
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| author | Shuangshuang Chang Yanhong Jia Xin Du Shaoqiang Guo |
| author_facet | Shuangshuang Chang Yanhong Jia Xin Du Shaoqiang Guo |
| author_sort | Shuangshuang Chang |
| collection | DOAJ |
| description | Pyroprocessing of spent nuclear fuels uses the LiCl–KCl molten salt as an electrolyte, which contains dissolved fission products and can be very corrosive to the structural alloys. This study investigates the effect of EuCl3 on the corrosion behavior of four commercial alloys: Haynes C276, Inconel 600, Incoloy 800, and 316L stainless steel. Static immersion tests and electrochemical polarization measurements were carried out in molten LiCl–KCl salts with and without EuCl3 additives at 500°C. The results showed that the presence of EuCl3 caused the severe dissolution of Ni, Fe, and Cr from alloys, accompanied by the cathodic reduction of EuCl3 to EuCl2. All alloys suffered from intergranular dissolution and cracking, with additional pitting and void attacks for Incoloy 800 and 316L stainless steel. |
| first_indexed | 2024-12-12T00:04:29Z |
| format | Article |
| id | doaj.art-c9670721113e42a3a2ae58487c38f6fc |
| institution | Directory Open Access Journal |
| issn | 2296-8016 |
| language | English |
| last_indexed | 2024-12-12T00:04:29Z |
| publishDate | 2022-07-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Materials |
| spelling | doaj.art-c9670721113e42a3a2ae58487c38f6fc2022-12-22T00:45:10ZengFrontiers Media S.A.Frontiers in Materials2296-80162022-07-01910.3389/fmats.2022.958296958296Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3Shuangshuang Chang0Yanhong Jia1Xin Du2Shaoqiang Guo3School of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an, ChinaChina Institute of Atomic Energy, Beijing, ChinaSchool of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an, ChinaSchool of Nuclear Science and Technology, Xi’an Jiaotong University, Xi’an, ChinaPyroprocessing of spent nuclear fuels uses the LiCl–KCl molten salt as an electrolyte, which contains dissolved fission products and can be very corrosive to the structural alloys. This study investigates the effect of EuCl3 on the corrosion behavior of four commercial alloys: Haynes C276, Inconel 600, Incoloy 800, and 316L stainless steel. Static immersion tests and electrochemical polarization measurements were carried out in molten LiCl–KCl salts with and without EuCl3 additives at 500°C. The results showed that the presence of EuCl3 caused the severe dissolution of Ni, Fe, and Cr from alloys, accompanied by the cathodic reduction of EuCl3 to EuCl2. All alloys suffered from intergranular dissolution and cracking, with additional pitting and void attacks for Incoloy 800 and 316L stainless steel.https://www.frontiersin.org/articles/10.3389/fmats.2022.958296/fullmolten salt corrosioneuropiumLiCl–KClHaynes C276Inconel 600Incoloy 800 |
| spellingShingle | Shuangshuang Chang Yanhong Jia Xin Du Shaoqiang Guo Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3 Frontiers in Materials molten salt corrosion europium LiCl–KCl Haynes C276 Inconel 600 Incoloy 800 |
| title | Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3 |
| title_full | Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3 |
| title_fullStr | Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3 |
| title_full_unstemmed | Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3 |
| title_short | Corrosion Behavior of Commercial Alloys in LiCl–KCl Molten Salt Containing EuCl3 |
| title_sort | corrosion behavior of commercial alloys in licl kcl molten salt containing eucl3 |
| topic | molten salt corrosion europium LiCl–KCl Haynes C276 Inconel 600 Incoloy 800 |
| url | https://www.frontiersin.org/articles/10.3389/fmats.2022.958296/full |
| work_keys_str_mv | AT shuangshuangchang corrosionbehaviorofcommercialalloysinliclkclmoltensaltcontainingeucl3 AT yanhongjia corrosionbehaviorofcommercialalloysinliclkclmoltensaltcontainingeucl3 AT xindu corrosionbehaviorofcommercialalloysinliclkclmoltensaltcontainingeucl3 AT shaoqiangguo corrosionbehaviorofcommercialalloysinliclkclmoltensaltcontainingeucl3 |