(1. 湖南金聯(lián)星特種材料股份有限公司，岳陽 414005；
2. 中國科技大學(xué) 化學(xué)與材料科學(xué)學(xué)院，合肥 230026；
3. 武漢大學(xué) 物理科學(xué)與技術(shù)學(xué)院，武漢 430072；
4. 攀枝花市發(fā)展和改革委員會，攀枝花 617000)
摘 要: 分別從理論計算和實驗研究兩個方面對氟鹽法制備Al-Ti-B中間合金過程中K2TiF6和KBF4的添加順序?qū)辖鸾M織的影響進(jìn)行討論。結(jié)果表明：不同的加料順序?qū)l-Ti-B中間合金的物相組成、TiAl3顆粒尺寸、潔凈度等影響很大；在保證高細(xì)化效果和潔凈度的情況下，使用混合添加K2TiF6和KBF4制備Al-Ti-B中間合金的工藝最佳。該研究結(jié)果為工業(yè)上選取合適的原料添加順序制備Al-Ti-B中間合金提供了參考。
關(guān)鍵字: Al-Ti-B；中間合金；加料順序；物相；TiAl3；潔凈度
（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
