期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 509, 期 1, 页码 57-60出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2010.09.046
关键词
Aluminum alloys; Intermetallics; Nucleation; Grain refinement; Cavitation; Ultrasound
资金
- Materials Innovation Institute [MC4.05215]
In high-strength aluminum alloys Ti and Zr are commonly present as alloying elements, mostly as anti-recrystallization agents. Grain refinement during solidification is also achieved using Ti but in the form of titanium borides. Our previous investigations showed that a combined addition of Zr and Ti enables considerable grain refinement in aluminum alloys upon cavitation treatment, much stronger than that of Zr alone. The role of titanium and ultrasonic processing remained unclear. In this paper we propose a mechanism of the grain refinement that includes structural changes in solidification sites, their refinement and initiation of heterogeneous nucleation at lower undercooling. (C) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据