Preparation and properties of alloy 2618 reinforced by submicron AIN particles |
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| Authors: | J. H. Wang D. Q. Yi |
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| Affiliation: | (1) Institute of Materials Research, School of Mechanical Engineering, Xiangtan University, 411105 Xiangtan, People’s Republic of China;(2) Institute of Material Science and Engineering, Central South University, 410083 Changsha, People’s Republic of China |
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| Abstract: | An attempt was made to explore the possibility of fabricating AA2618 reinforced by submicron AIN particles. The results show that the addition of AIN particles decreases remarkably the grain size of the alloy. The 2618-AIN dispersion-strengthened alloy has the same strength as AA2618 at room temperature in the T6 state, but exhibits significantly higher strength after isothermal exposure at 200 °C for 100 h. The strength of the dispersion-strengthened alloy at elevated temperatures was greater than that of AA2618. |
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| Keywords: | aluminum alloy casting mechanical properties microstructures |
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