Behavior of Fe-rich phase during rapid solidification of Cu–Fe hypoperitectic alloy

✍ Scribed by Jie He; Jiuzhou Zhao

• Book ID: 104061051
• Publisher: Elsevier Science
• Year: 2005
• Tongue: English
• Weight: 575 KB
• Volume: 404
• Category: Article
• ISSN: 0921-5093
• DOI: 10.1016/j.msea.2005.05.045

✦ Synopsis

Powders of Cu 85 Fe 15 alloy were manufactured by using the high-pressure gas atomization technique. The microstructures of the powders have been investigated. It is indicated that the liquid-liquid phase transformation takes place in the atomized droplets smaller than 224 m in diameter. The size of Fe-rich spheres decreases and their number density increases with the decrease of the powder size. A model has been developed to describe the microstructure evolution in the atomized droplets during a cooling through the metastable miscibility gap. Calculations have been performed with Cu 85 Fe 15 alloy. The experimental and simulated results have been discussed in detail.