Study on damping behavior of FeAl3 reinforced commercial purity aluminum

✍ Scribed by Chunlei Jia

• Publisher: Elsevier Science
• Year: 2007
• Weight: 159 KB
• Volume: 28
• Category: Article
• ISSN: 0261-3069
• DOI: 10.1016/j.matdes.2006.03.002

✦ Synopsis

Commercial purity aluminum composites with 5 wt% of FeAl 3 reinforcement were investigated. Samples of dimension 50 • 3.5 • 3.5 mm for damping measures were obtained by spark machining. The damping behavior of FeAl 3 reinforced composites and base alloy was studied over a temperature range of 30-300 °C using a dynamic mechanical thermal analyzer. The Al/FeAl 3 composites were found to exhibit higher damping capacity compared to Al matrix. The damping mechanisms associated with Al/FeAl 3 composites were ascribed to dislocation damping at low testing temperatures, and to dislocation damping, and interface damping at high testing temperatures.