Effect of iron on grain refinement of high-purity Mg-Al alloys

被引:96
作者
Cao, P [1 ]
Qian, M [1 ]
StJohn, DH [1 ]
机构
[1] Univ Queensland, Sch Engn, Div Mat, CRC Cast Met Mfg,CAST, Brisbane, Qld 4072, Australia
关键词
magnesium alloys; grain refinement; iron; carbon;
D O I
10.1016/j.scriptamat.2004.03.039
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
The effect of iron on the grain refinement of high-purity Mg-3%Al and Mg-91%Al alloys has been investigated using anhydrous FeCl3 as an iron additive at 750degreesC in carbon-free aluminium titanite crucibles. It was shown that grain refinement was readily achievable for both alloys. Fe- and Al-rich intermetallic particles were observed in many magnesium grains. (C) 2004 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:125 / 129
页数:5
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