The toughening of Al-Cu-Fe(-B) quasicrystals by Sn particles

被引：15
|
作者：
Fleury, E
Kim, YC
Kim, DH
Kim, DH
Kim, WT
机构：
[1] Yonsei Univ, Ctr Noncrystalline Mat, Seoul 120749, South Korea
[2] Chongju Univ, Div Appl Sci, Chonju 360764, South Korea
来源：
JOURNAL OF NON-CRYSTALLINE SOLIDS | 2004年 / 334卷
关键词：
D O I：
10.1016/j.jnoncrysol.2003.12.022
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The effect of soft Sn particles on the room temperature mechanical properties of as-cast Al-Cu-Fe(-B) quasicrystalline (QC) matrix composites has been studied by compression and three-point bending tests on notched specimens. Microstructural investigations indicated that the Sn particle size in the as-cast composites increased linearly with the volume fraction. The addition of about 10 vol.% Sn enabled a twofold increase of the strength for the cast Al-Cu-Fe and a threefold increase of the fracture toughness for the cast Al-Cu-Fe-B composites. The enhancement of the strength was attributed to micro-crack impediment and crack bridging mechanisms in the as-cast QC matrix composites with small and large Sn particle sizes, respectively. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：449 / 452
页数：4
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