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Microstructure and Mechanical Properties of Al – Al 2 O 3 Micro and Nano Composites Fabricated by a Novel Stir Casting Route
| Content Provider | Semantic Scholar |
|---|---|
| Author | Ezatpour, H. R. Beygi, Heydar Sajjadi, Seyed Parizi, Molook Torabi |
| Copyright Year | 2011 |
| Abstract | In this study, in order to improve the wettability and distribution of reinforcement particles within the matrix, a novel three step mixing method including heat treatment of nano particles, injection of heat-treated particles within the melt by inert Argon gas and stirring the melt at different speed was introduced for addition of Al2O3 particles to the molten A356 aluminum alloy. The influence of various processing parameter such as the heat treatment of nanoparticles, injection process, stirring speed, reinforcement particle size and weight percentage of reinforcement particles from 1 to 10 wt.% on the microstructure and mechanical properties of composites were investigated. The results showed the poor incorporation of nano particles in the aluminum melt prepared by the common condition while the use of heat-treated particles, injection of particles and the stirring system were improved the wettability and distribution of the nano particles within the aluminum melt. Also, it was revealed that the amount of hardness and porosity increased as weight percentage of nano Al2O3 particles increased. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://profdoc.um.ac.ir/articles/a/1024145.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
