Damage mechanisms in aluminum-matrix composites reinforced with nano-alumina particles

被引:2
作者
Ebrahimnejad, Azam [1 ]
Sajjadi, Seyed Abdolkarim [1 ]
机构
[1] Ferdowsi Univ Mashhad, Dept Mat Sci & Engn, Mashhad, Iran
关键词
Al-matrix composite; Nano-alumina particles; Powder metallurgy; Damage mechanism; FRACTURE; AL2O3;
D O I
10.3139/146.111277
中图分类号
TF [冶金工业];
学科分类号
0806 ;
摘要
In this research, an examination of the effects of fraction of particulate nano-sized alumina (0, 2, 5, 10, 15 and 20 wt.%) on the mechanical properties and fracture mechanism of Al-Al2O3 nano-composite has been carried out. The samples were uniaxially tested at room temperature and sample sections were analyzed using scanning electron microscopy. The results showed that the fracture mode of the composites was changed by volume fraction of the reinforcement particles. The main damage mechanisms observed in the specimens were clustering and microvoid formation, crack branching and crack deflection.
引用
收藏
页码:1107 / 1110
页数:4
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