| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7972952 | Materials Science and Engineering: A | 2018 | 11 Pages |
Abstract
A new type of Al-matrix composites reinforced by in-situ Ti-(AlxTiy/Ultrafine-grained Al) core-multishell structured particles were successfully fabricated at relatively low temperature (450-580â¯Â°C) by SPS technique within a very short time. The composite sintered at 580â¯Â°C exhibits a yield strength improvement of 64.5% over the unreinforced matrix and a satisfactory elongation of 27%. The defects, UFG-Al grains and local-connection accelerated the Al-Ti inter-diffusion and consolidation process of composites. Although residual voids near AlxTiy/Al interface may induce the cracks, discontinuous tough intermetallic-phases inside AlxTiy layer and soft Ti-core can effectively decelerate the crack-propagation.
Keywords
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Zheng-Yang Hu, Zhao-Hui Zhang, Hu Wang, Sheng-Lin Li, Shi-pan Yin, Qi Song, Xing-Wang Cheng,