期刊
MATERIALS & DESIGN
卷 31, 期 8, 页码 3880-3884出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.matdes.2010.02.047
关键词
-
Among all metal matrix composites, aluminum is the most widely used matrix due to its low density coupled with high stiffness. In this study, aluminum matrix composites reinforced by two sizes of alumina particles (35 nm and 0.3 mu m) are prepared by wet attrition milling and hot forward extrusion processes. The effect of the ratio of the nano- to submicron-sized particles (2:8, 3:7, 4:6, 5:5, and 6:4 in weight percent) on mechanical properties of the composites is evaluated by micro-hardness and tensile tests. It is found that by increasing the nanoparticles content, the hardness and strength of the composites first increase and then decrease when the amount of the nanoparticle exceeds 4 wt.%. The tensile fracture surfaces are also observed by scanning electron microscopy. (C) 2010 Elsevier Ltd. 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