1. Corrosion Behavior of Ti3SiC2 in Flowing Liquid Lead–Bismuth Eutectic at 500 °C
- Author
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Liangliang Lyu, Xi Qiu, Huifang Yue, Mingyang Zhou, and Huiping Zhu
- Subjects
General Materials Science ,MAX phase ,LBE corrosion ,corrosion structure ,microhardness ,wettability - Abstract
MAX phases are promising candidate structural materials for lead-cooled fast reactors (LFRs) and accelerator-driven sub-critical systems (ADSs) due to their excellent corrosion resistance in liquid LBE. In this work, one of the typical MAX phases, Ti3SiC2, was exposed to the flowing LBE with a saturated oxygen concentration at 500 °C for up to 3000 h. The corrosion behaviors, including the evolution of the corrosion layer, mechanical properties and wettability, were evaluated via X-ray diffraction, a scanning electron microscope equipped with an energy-dispersive X-ray, a microhardness test and contact angle measurement. The results reveal that a corrosion structure with a duplex layer was formed on the sample surfaces. The outer layer was a diffusion layer, which always remained thin (
- Published
- 2022
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