(1. 湖南金联星特种材料股份有限公司，岳阳 414005；
2. 中国科技大学 化学与材料科学学院，合肥 230026；
3. 武汉大学 物理科学与技术学院，武汉 430072；
4. 攀枝花市发展和改革委员会，攀枝花 617000)
摘 要: 分别从理论计算和实验研究两个方面对氟盐法制备Al-Ti-B中间合金过程中K2TiF6和KBF4的添加顺序对合金组织的影响进行讨论。结果表明：不同的加料顺序对Al-Ti-B中间合金的物相组成、TiAl3颗粒尺寸、洁净度等影响很大；在保证高细化效果和洁净度的情况下，使用混合添加K2TiF6和KBF4制备Al-Ti-B中间合金的工艺最佳。该研究结果为工业上选取合适的原料添加顺序制备Al-Ti-B中间合金提供了参考。
关键字: Al-Ti-B；中间合金；加料顺序；物相；TiAl3；洁净度
（1. Hunan Jinlianxing Special Materials Technology Co., Ltd., Yueyang 414005, China;
2. School of Chemistry and Materials Science，University of Science and Technology of China, Hefei 230026, China;
3. School of Physics and Technology, Wuhan University, Wuhan 430072, China;
4. Development and Reform Commission of Panzhihua City, Panzhihua 617000, China）
Abstract:The effects of feeding order of K2TiF6 and KBF4 on preparation of Al-Ti-B master alloy by fluoride salt method were discussed from both sides of theoretical calculation and experimental research. The results show that, the feeding order has obvious influence on the phase composition, particle size of TiAl3 and cleanliness of the Al-Ti-B master alloy. Meanwhile, under the conditions of the better refinement performance and higher cleanliness, the use of the process of feeding way with mixed KBF4 and K2TiF6 is the best. The results provide a reference for choosing suitable feeding order to prepare Al-Ti-B master alloy in industry.
Key words: Al-Ti-B; master alloy; feeding order; phase; TiAl3; cleanliness
