The microstructure and hardness of Al2O3 particle reinforced composite
Abstract
Aluminium alloys (Al2014 and Al2124 alloy) and their composites containing 10wt.% Al2O3 with 3 ?m and 43 ?m sizes of particles have been produced by powder metallurgy (PM) method and the microstructure and hardness were investigated. Scanning electron microscopy (SEM) investigation showed a nearly uniform distribution of the Al2O3 particles within the Al2124 alloy matrix although some porosities were found in the Al2014 alloy matrix. Furthermore, it was found that the macrohardness of Al2124 alloy composite improved highly in comparison to that of Al2014 alloy due to fine of microstructure and increased hardness. The hardnesses of both MMCs increased with increasing the particle sizes. © (2012) Trans Tech Publications, Switzerland.
Source
Applied Mechanics and MaterialsVolume
232URI
https://dx.doi.org/10.4028/www.scientific.net/AMM.232.39https://hdl.handle.net/20.500.12418/4861
Collections
- Bildiri Koleksiyonu [210]