Effect of thermal cycling on the expansion behavior of Al/SiCp composite

✍ Scribed by Na Chen; Hongxiang Zhang; Mingyuan Gu; Yanping Jin

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 433 KB
• Volume: 209
• Category: Article
• ISSN: 0924-0136
• DOI: 10.1016/j.jmatprotec.2008.03.054

✦ Synopsis

The coefficient of thermal expansion (CTE) and accumulated plastic strain of the pure aluminum matrix composite containing 50% SiC particles (Al/SiC p ) during thermal cycling (within temperature range 298-573 K) were investigated. The composite was produced by infiltrating liquid aluminum into a preform made by SiC particles with an average diameter of 14 m. Experiment results showed that the relationship between the CTE of Al/SiC p and temperature is nonlinear; CTE could reach a maximum value at about 530 K. The theoretical accumulated plastic strain of Al/SiC p composites during thermal cycling has also been calculated and compared with the experimental results.