Effect of high density ultrasonic on the microstructure and refining property of Al-5Ti-0.25C grain refiner alloy
Effect of high density ultrasonic on the microstructure and refining property of Al-5Ti-0.25C grain refiner alloy
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DOI：
10.1016/j.msea.2007.11.067
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发表时间：
2008-07-25
期刊：
影响因子：
6.4
通讯作者：
Gong, L. Y.
中科院分区：
文献类型：
--
作者：
Li, Y. L.;Feng, H. K.;Gong, L. Y.
采用超声处理对Al-5Ti-0.25C晶粒细化合金熔体进行凝固，改变了TiAl3的形貌和TiC相的显微组织。研制了一种新型高密度超声处理装置。同时，将超声处理应用于Al-5Ti-0.25C晶粒细化剂A1075的细化过程中，研究了超声处理对Al-5Ti-0.25C合金细化性能的影响。结果表明：超声处理使TiC颗粒分散在晶粒细化合金中，TiAl3相分散细化。超声波处理提高了TiC颗粒的形核活性，提高了Al-5Ti-0.25C晶粒细化剂对A1075的细化效果，同时明显缩短了晶粒细化剂的细化反应时间。(c) 2007 Elsevier B.V.版权所有
A melt of Al-5Ti-0.25C grain refiner alloy was solidified with ultrasonic treatment to change the morphology of TiAl3 and the microstructure of TiC phases. A novel high density ultrasonic treatment device was fabricated. Meanwhile, ultrasonic treatment was applied to the refining process of Al-5Ti-0.25C grain refiner on A1075, and the effect of ultrasonic treatment on Al-5Ti-0.25C alloy and refining characteristics were studied. It is shown that TiC particles were dispersed in the grain refiner alloy and TiAl3 phase was refined dispersedly with ultrasonic treatment. The nucleation activity of TiC particles was increased and the refining effect of Al-5Ti-0.25C grain refiner on A1075 was raised, at the same time the refining reaction time of grain refiner was shorten obviously due to the application of ultrasonic treatment. (c) 2007 Elsevier B.V. All rights reserved.