材料工程2019，Vol.47Issue(3)：23-29,7.DOI:10.11868/j.issn.1001-4381.2017.001177
石墨烯纳米片增强铝基复合材料的动态力学行为
Dynamic mechanical behavior of graphene nanoflakes reinforced aluminum matrix composites
赵双赞 1燕绍九 1陈翔 1洪起虎 1李秀辉 1戴圣龙1
作者信息
- 1. 中国航发北京航空材料研究院,北京 100095
- 折叠
摘要
Abstract
Graphene nanoflakes (GNFs) reinforced aluminum matrix composites were prepared by compressing-sintering-hot extrusion process, and their compressive properties were tested. The results show that GNFs/Al composites are high strain rate sensitive materials. When the strain rate increases from 10-3s-1 to 3×103s-1, the strength of the composites increases obviously. However, when the strain rate further increases to 5×103s-1, the strength of the composites declines a little due to the internal thermal softening of the material. Dynamic recrystallization occurs in the matrix of the composites after dynamic compression, and the higher the strain rate is, the more significant the dynamic recrystallization is. At the same time, the enhanced phase GNFs remain intact and bonded with matrix in atom scale while undergo a distorted deformation. Therefore, the plasticity of graphene reinforced aluminum matrix composites under dynamic compression is excellent.关键词
石墨烯纳米片/金属基复合材料/力学性能/应变率/动态再结晶Key words
graphene nanoflakes/metal matrix composites/mechanical property/strain rate/dynamic recrystallization分类
通用工业技术引用本文复制引用
赵双赞,燕绍九,陈翔,洪起虎,李秀辉,戴圣龙..石墨烯纳米片增强铝基复合材料的动态力学行为[J].材料工程,2019,47(3):23-29,7.
