Effect of Short Fiber Reinforcement on the Fracture Toughness of Metal Matrix Composites

被引：9
作者：
Lee, I. T. [2 ]
Wang, Y. Q. [1 ]
Ochi, Y. [2 ]
Bae, S. I. [1 ]
Han, K. S. [3 ]
Song, J. I. [1 ]
机构：
[1] Changwon Natl Univ, Dept Mech Engn, Chang Won 641773, Kyungnam, South Korea
[2] Univ Electrocommun Chofugaoka, Dept Mech Engn & Intelligent Syst, Tokyo 1828533, Japan
[3] POSTECH Pohang Univ Sci & Technol, Dept Mech Engn, Pohang 790784, South Korea
来源：
ADVANCED COMPOSITE MATERIALS | 2010年 / 19卷 / 01期
关键词：
Fracture toughness; notch fracture toughness; metal matrix composites; squeeze infiltration method; VOLUME FRACTION; PARTICLE-SIZE; BEHAVIOR; INFILTRATION; FABRICATION; ALUMINUM; ALLOY; AL;
D O I：
10.1163/156855109X434801
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
Evaluation of fracture toughness of short fiber reinforced metal matrix composites (MMCs) becomes important for their application as structural materials. Therefore, in this study static and dynamic fracture toughness of MMCs manufactured by squeeze casting process were investigated. A number of MMCs were tested with various matrix alloy, volume fractions and specifically types of reinforcements. It was found that static and dynamic fracture toughness of MMCs was remarkably decreased by the addition of ceramic reinforcements. Compared with static fracture toughness, the mean cause of the decrease difference of dynamic fracture toughness and notch dynamic fracture toughness is due to the effect of dynamic velocity under impact loading. The toughness of ceramic reinforced MMCs is controlled by a complex interaction between the matrix alloy and reinforcement. Important properties which influence toughness include the type of reinforcement (appearance, size), volume fraction and combination of reinforcement and the matrix alloy. Notch fracture toughness of MMCs for simple evaluation was also discussed. (C) Koninklijke Brill NV, Leiden, 2010
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页码：41 / 53
页数：13
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