Effect of the Deformation Parameters on the Microstructure of TiC-Al₂O_3P/Al Composites

Abstract:

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.

• Periodical: Materials Science Forum (Volume 877)
• Pages: 237-244
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.877.237
• Online since: November 2016
• Authors: Rui Ying Zhang*, Peng Wang, Xiao Wei Han, Zhi Ming Shi, Ge Zhao
• Keywords: Hot Deformation, Microstructure, Strain-Induced Precipitation, TiC-Al₂O₃/Al Composites

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