Microstructure evolution behavior of AlSi9Cu3 alloy during rheocasting
| Autor: | Xu-bo Liu, Xiang-jie Yang, Ai-sheng Zhang, Hong-min Guo, Yong Liu |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Ostwald ripening
Materials science Alloy Metallurgy Metals and Alloys engineering.material Geotechnical Engineering and Engineering Geology Condensed Matter Physics Microstructure symbols.namesake Solid fraction Materials Chemistry engineering symbols Particle size Composite material Particle density Eutectic system |
| Zdroj: | Transactions of Nonferrous Metals Society of China. 20:s815-s820 |
| ISSN: | 1003-6326 |
| DOI: | 10.1016/s1003-6326(10)60587-0 |
| Popis: | The experimental and analytical approaches were taken to investigate the non-dendritic microstructure formation and evolution of AlSi9Cu3 alloy during rheocasting. The results show that the globular primary a (Al) particles free of entrapped eutectic form after rheocasting for 3 s, and could be morphologically stabilized during subsequent growth. The fine and globular particles underwent a coarsening process under quiescently continuous cooling in which the particle density decreases, the solid fraction increases, the average particle size increases with the increase of solidification time at a rate that closely followed the classical Ostwald ripening. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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