期刊
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
卷 498, 期 1-2, 页码 421-429出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2008.08.037
关键词
Ultrasonic consolidation; Fibre embedding; Plastic flow; Work hardening
类别
资金
- Engineering and Physical Science Research Council (EPSRC)
- Defence Science and Technology Laboratory (Dstl)
- Ministry of Defence (MOD), UK
SiC fibres and single mode (SM) optical fibres were successfully embedded in Al alloys matrices through ultrasonic consolidation (UC). The plastic flow of Al alloy matrices was visualized after anodization by optical microscopy with polarized light. Grain and sub-grain sizes of Al alloys before and after UC and work hardening of matrices due to plastic flow during UC process, were studied. The results show that UC process increases the hardness of alloy matrices, especially at regions proximal to fibres, with work hardening following the Hall-Petch relationship for both grains and sub-grains. During UC process, work hardening is mainly caused by bulk plastic deformation with no significant effect from friction at foil/foil interface. For the consolidated materials tested, work hardening in a 3003 O matrix is higher than that in a 6061 O matrix. In addition, plastic deformation of a 3003 O matrix in SM fibre embedded samples is smaller than that in SiC fibre embedded samples, which may have been influenced by the different embedding processes. (c) 2008 Elsevier B.V. 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