Grain refinement efficiency and mechanism of aluminium carbide in Mg-Al alloys

被引：138
|
作者：
Lu, L [1 ]
Dahle, AK [1 ]
StJohn, DH [1 ]
机构：
[1] Univ Queensland, Div Mat Engn, CRC Cast Met Mfg, Brisbane, Qld 4072, Australia
来源：
SCRIPTA MATERIALIA | 2005年 / 53卷 / 05期
关键词：
Mg-Al alloys; heterogeneous nucleation; grain refinement;
D O I：
10.1016/j.scriptamat.2005.05.008
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Detailed microscopic examination using optical and electron microscopes suggests that Al4C3, often observed in the central regions of magnesium grains on polished sections, is a potent substrate for primary Mg. Calculations of the crystallographic relationships between magnesium and Al4C3 further support the experimental observations. (c) 2005 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：517 / 522
页数：6
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