期刊
出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2014.02.088
关键词
In situ composites; TiB2 particles; Microstructure; Mechanical properties
类别
资金
- National Natural Science Foundation of China [51274054, U1332115, 51271042, 51375070]
- Keygrant Project of Chinese Ministry of Education [313011]
In Part I of the two part study, an improved halide salt route was developed to fabricate in situ TiB2 particulate reinforced aluminum matrix master composites based on the well-established flux assisted synthesis (FAS) method using mechanical stirring. By microstructural and element-recovery analysis, we show how the simple but effective improved method - leaving the reactant molten salt on the surface of aluminum melt without introducing any stirring during holding - influences the mechanical performance of the final composites. Processing parameters in terms of holding duration, reaction temperature and stirring speed before casting were optimized to produce Al-5 wt% TiB2 composite with consistent and sound quality. The experimental Al-5TiB(2) composite, prepared under the improved halide salt route condition, has achieved a 140% improvement in the UTS without compromising its ductility with respect to the Al matrix. The experimental validation of using the developed Al-5TiB(2) composite as a master composite to reinforce aluminum foundry alloys will be presented in Part II. (C)2014 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