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Corrosion behavior and microstructural evolution of BN –ZrO 2 –SiC composites in molten steel
Author(s) -
Chen Lei,
Zhen Li,
Wang Yujin,
Duan Xiaoming,
Ouyang JiaHu,
Zhou Yu
Publication year - 2017
Publication title -
international journal of applied ceramic technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.4
H-Index - 57
eISSN - 1744-7402
pISSN - 1546-542X
DOI - 10.1111/ijac.12694
Subject(s) - materials science , corrosion , composite number , porosity , composite material , layer (electronics) , microstructure , metallurgy
The influence of SiC content on corrosion resistance and microstructural evolution of BN –ZrO 2 –SiC composites after corrosion in molten steel at 1600°C has been investigated. The corrosion resistance of BN –ZrO 2 –SiC composite decreases with increasing the SiC content. When the SiC content is more than 15 vol%, the corrosion rate begins to accelerate sharply. A resintered ZrO 2 bilayer structure with a distinctly reduced porosity in the corrosion layer contributes significantly to the enhanced corrosion resistance. Thus, optimizing the SiC content and tailoring the microstructural feature of residual corrosion layer are effective ways to improve the corrosion resistance of BN –ZrO 2 –SiC composite.