采取不同的加料方式来熔制Al-Ti-B中间合金,从Ti、B的直收率、中间合金的化学成分以及微观组织的角度对比,中间合金中TiAl3和TiB2颗粒的分布、形貌及其尺寸大小有较大差异。结果表明,在保证良好的合金成分和合金微观组织的情况下要得到理想的TiAl3和TiB2第二相颗粒,在用氟盐法制备Al-Ti-B中间合金的过程中,应在铝锭熔化后先加入K2TiF6后再加入KBF4。 Al-Ti-B master alloy was melted by different feeding methods. From the aspects of the direct yield of Ti, B, the chemical composition of intermediate alloy and the microstructure, the distribution and morphology of TiAl3 and TiB2 particles in the master alloy The size of the larger differences. The results show that, in the case of ensuring a good alloy composition and alloy microstructure to obtain the desired TiAl3 and TiB2 second phase particles, in the process of preparation of Al-Ti-B master alloy by fluoride salt method, the aluminum ingot should be melted After adding K2TiF6 before adding KBF4.