Effect of loading velocity and testing temperature on the fracture toughness of a SiCw/6061Al alloy composite

被引：12

作者：

Wang, L

Kobayashi, T

Toda, H

Hayakawa, M

机构：

[1] Tottori Univ, Dept Mech Engn, Tottori 6808522, Japan

[2] Toyohashi Univ Technol, Dept Prod Syst Engn, Toyohashi, Aichi 4418580, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2000年 / 280卷 / 01期

关键词：

loading velocity; testing temperature; fracture toughness; composite; fracture behavior; dynamic;

D O I：

10.1016/S0921-5093(99)00669-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effects of loading velocity and testing temperature on the fracture toughness of a SiC whisker reinforced 6061 aluminum alloy composite were investigated. A precracked three-point bend specimen configuration was selected for fracture toughness measurement, with tests being conducted at loading velocities of 10(-2)-10 m s(-1), and from room temperature to 473 K. The results showed that the fracture toughness increases with increasing loading velocity, but, the difference with respect to room temperature is small, because the fracture toughness decreases slowly with the increase of testing temperature. The composite material failed mainly by whisker pull-out and whisker breaking. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：214 / 219

页数：6

共 24 条

[1] DEFORMATION AND FRACTURE-BEHAVIOR OF METAL-CERAMIC MATRIX COMPOSITE-MATERIALS [J].