Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth Eutectic
In this study, slow strain rate tensile tests (SSRT) were performed on T91 in lead-bismuth eutectic (LBE) with saturated oxygen to investigate the effects of temperature (350 °C, 450 °C, and 550 °C), strain rate (1 × 10<sup>−5</sup>/s and 2 × 10<sup>−6</sup>/s) and pre-exposu...
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MDPI AG
2025-02-01
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| Online Access: | https://www.mdpi.com/2075-4701/15/2/206 |
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| author | Jie Zhang Bo Qin Bin Long |
| author_facet | Jie Zhang Bo Qin Bin Long |
| author_sort | Jie Zhang |
| collection | DOAJ |
| description | In this study, slow strain rate tensile tests (SSRT) were performed on T91 in lead-bismuth eutectic (LBE) with saturated oxygen to investigate the effects of temperature (350 °C, 450 °C, and 550 °C), strain rate (1 × 10<sup>−5</sup>/s and 2 × 10<sup>−6</sup>/s) and pre-exposure conditions (time, oxygen concentration) on the sensitivity to liquid metal embrittlement (LME). The results revealed that the embrittlement sensitivity of T91 in LBE is significantly influenced by temperature. LME was observed in T91 at 350 °C and disappeared when the temperature increased to 550 °C. Additionally, T91 exhibited increased sensitivity to LME at low strain rates, indicating that low strain rates promoted the occurrence of LME. Finally, through different pre-exposure conditions, it was found that the obvious LME phenomenon would only occur when the oxygen concentration was poor and the pre-exposure time was long (48 h), indicating that pre-exposure conditions have a crucial impact on the occurrence of LME. |
| format | Article |
| id | doaj-art-f0ece023ce1b475aa5e610035efbda22 |
| institution | DOAJ |
| issn | 2075-4701 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj-art-f0ece023ce1b475aa5e610035efbda222025-08-20T03:12:09ZengMDPI AGMetals2075-47012025-02-0115220610.3390/met15020206Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth EutecticJie Zhang0Bo Qin1Bin Long2Reactor Engineering Technology Research Department, China Institute of Atomic Energy, Beijing 102413, ChinaReactor Engineering Technology Research Department, China Institute of Atomic Energy, Beijing 102413, ChinaReactor Engineering Technology Research Department, China Institute of Atomic Energy, Beijing 102413, ChinaIn this study, slow strain rate tensile tests (SSRT) were performed on T91 in lead-bismuth eutectic (LBE) with saturated oxygen to investigate the effects of temperature (350 °C, 450 °C, and 550 °C), strain rate (1 × 10<sup>−5</sup>/s and 2 × 10<sup>−6</sup>/s) and pre-exposure conditions (time, oxygen concentration) on the sensitivity to liquid metal embrittlement (LME). The results revealed that the embrittlement sensitivity of T91 in LBE is significantly influenced by temperature. LME was observed in T91 at 350 °C and disappeared when the temperature increased to 550 °C. Additionally, T91 exhibited increased sensitivity to LME at low strain rates, indicating that low strain rates promoted the occurrence of LME. Finally, through different pre-exposure conditions, it was found that the obvious LME phenomenon would only occur when the oxygen concentration was poor and the pre-exposure time was long (48 h), indicating that pre-exposure conditions have a crucial impact on the occurrence of LME.https://www.mdpi.com/2075-4701/15/2/206lead-bismuth eutecticliquid metal embrittlementpre-exposureferritic/martensitic steels |
| spellingShingle | Jie Zhang Bo Qin Bin Long Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth Eutectic Metals lead-bismuth eutectic liquid metal embrittlement pre-exposure ferritic/martensitic steels |
| title | Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth Eutectic |
| title_full | Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth Eutectic |
| title_fullStr | Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth Eutectic |
| title_full_unstemmed | Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth Eutectic |
| title_short | Study on Liquid Metal Embrittlement Susceptibility of T91 Exposed to Liquid Lead-Bismuth Eutectic |
| title_sort | study on liquid metal embrittlement susceptibility of t91 exposed to liquid lead bismuth eutectic |
| topic | lead-bismuth eutectic liquid metal embrittlement pre-exposure ferritic/martensitic steels |
| url | https://www.mdpi.com/2075-4701/15/2/206 |
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