两种不同的加料方式对铝钛硼中间合金成分的影响

在熔制A1-Ti—B中间合金时，氟钛酸钾、氟硼酸钾的不同的加料方式直接影响整个化学反应过程，从而对Al—Ti—B中间合金的化学成分即Ti，B元素的吸收率有一定影响；在其它（反应温度、反应时间）相同的工艺参数条件下，通过不同的原料添加方式得到的Al—Ti—B中间合金成分的对比，结果表明，不同的加料方式使得A1-Ti—B中间合金成分存在较大的差异，进而影响中间合金TiB2和TiAl3颗粒的分布，形貌及其尺寸大小。本文重点讨论加料方式对铝钛硼中间合金细化剂成分的影响。

The Effect of Two Different Charging Methods on AlTiB Master Alloy's Composition

the different charging methods of potassium fluotitanate and potassium fluoborate in preparation of AI-Ti-B master al- loy directly influence the whole chemical reaction process, thereby it has a certain effect on the chemical composition of A1-Ti-B master al- loy, i. e. the absorptivity of Ti, B elements; under the same condition of other process parameters （reaction temperature, reaction time） , the comparison of AI-Ti-B master alloy＇s composition with different raw material charging method shows the different charging methods can make bigger difference of A1-Ti-B master alloy＇s composition, and then influence the particle distribution, morphology and size dimension of TiB2 and TiAl3. The effect of charging methods on the composition of AI-Ti-B master alloy is the emphasis of this paper.