Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7971783 | Materials Science and Engineering: A | 2018 | 22 Pages |
Abstract
In the present study, friction stir processing (FSP) is used for the synthesis of an aluminum metal matrix composite (MMC) reinforced by SiC particles. MMC specimens with reinforced microstructures exhibited significant improvement in hardness (near 50%). Isothermal uniaxial tensile tests were employed for the as-received, friction stir processed and composite microstructures at ambient and high temperatures under strain rates ranging from 10â2 to 10â4 sâ1 to investigate the effect of deformation rate on the mechanical behavior. At ambient temperature, notable improvement of the yield strength was observed reaching about 240% of the as-received samples while the ductility was reduced near to 4%. Elevated temperature flow curves were perceptibly sensitive to strain rate, especially for FSPed and MMC samples. Fracture surface observations hinted at the distribution of second phase particles along with possible damage mechanisms.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Ali Hosseinzadeh, Guney Guven Yapici,