| Popis: |
An aluminum matrix composite reinforced by TiC and Al2O3 particles was synthesized using TiO2, C, and Al powder by the in-situ reaction. The effects of deformation parameters on the microstructure of the TiC-Al2O3/Al composite were investigated using XRD, SEM and TEM. The result shows that the strain rate and deformation temperature influence the size, styles, and distribution of the second phase. Reinforcements are dispersed in a distribution with increasing deformation temperature and strain rate. However, broken Al3Ti exhibits redissolution phenomenon. The new precipitated Al3Ti phase will precipitate from the strain-induced solid solution when the total strain increases to a certain degree at a high deformation temperature. |
