CAJ | 학술논문

以自合成的BaZrO 3粉体为材料制备成坩埚，在真空条件下熔炼了TiAl 合金，并对熔炼后合金的显微组织及合金与BaZrO 3耐火材料的界面反应情况进行研究。结果表明：熔炼后合金的显微组织由大量不同取向的片层状α2+γ和少量条块状的γ相组成；合金熔体对BaZrO 3耐火材料的润湿性较差，熔炼后未观察到界面反应层的存在；BaZrO 3对合金熔体具有良好的化学惰性，是极具潜力的TiAl 合金熔炼用耐火材料。
이자합성적BaZrO 3분체위재료제비성감과，재진공조건하용련료TiAl 합금，병대용련후합금적현미조직급합금여BaZrO 3내화재료적계면반응정황진행연구。결과표명：용련후합금적현미조직유대량불동취향적편층상α2+γ화소량조괴상적γ상조성；합금용체대BaZrO 3내화재료적윤습성교차，용련후미관찰도계면반응층적존재；BaZrO 3대합금용체구유량호적화학타성，시겁구잠력적TiAl 합금용련용내화재료。
A homemade BaZrO3 crucible was used to melt TiAl alloys, the microstructure of the melt TiAl alloys and interface reaction between the BaZrO 3 refractory and TiAl melt were investigated. The results demonstrate that the microstructure of TiAl alloys is largely composed of lamellarα2+γwith different orientations and small amount of bulkγphase;the melts exhibit poor wettability with BaZrO 3 refractory and no reaction layer is observed between them. This may imply that the BaZrO3 is a promising candidate of materials for the melting of TiAl alloys.