X.F. Liu
,
X.F. Bian
,
X.G. Qi
,
M. Thompson and J.J Ma (Colledge of Materials Science and Engineering
,
Shandong University of Technology
,
Jinan 250061
,
China)
金属学报(英文版)
Nucleation sites of α-Al grains after addition of an Al-Ti-B master alloy into pure aluminium have been investigated using EPMA. The results show that either TiAl3 or boride particales can nucleate α-Al grains. But the number of TiAl3 nucleants is reduced with the holding time prolonged and the boride-nuclei are increasing gradually. Based on these results, a new refining method, adding molten Al-Ti-B into commercially pure aluminium, which has a quicker and better refining efficiency is presented.
关键词:
Al-Ti-B master alloy
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