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Dissolution corrosion of 4H‐SiC in lead‐bismuth eutectic at 550°C
Author(s) -
Li Bingsheng,
Sheng Yanbin,
Liu Huiping,
Lu Xirui,
Shu Xiaoyan,
Xiong Anli,
Wang Xu
Publication year - 2019
Publication title -
materials and corrosion
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.487
H-Index - 55
eISSN - 1521-4176
pISSN - 0947-5117
DOI - 10.1002/maco.201910777
Subject(s) - corrosion , dissolution , materials science , irradiation , bismuth , eutectic system , amorphous solid , metallurgy , chemical engineering , chemistry , microstructure , crystallography , physics , nuclear physics , engineering
The corrosion behavior of 4H‐SiC in lead‐bismuth (Pb‐Bi) eutectic (LBE) at 550°C is investigated. To clarify the effect of irradiation damage on corrosion, samples with and without Si 5+ ion irradiation are contrastively evaluated. The main results show that dissolution corrosion occurs in both unirradiated and irradiated samples, while the irradiation damage can accelerate the corrosion rate. The corroded surface is characterized by the loss of C element and the formation of amorphous layers with a slight enrichment of Si atoms. The possible reasons are discussed.