The effect of solidification rate on the structure of magnesium-aluminium eutectic grains
| Autor: | Arne K. Dahle, David H. StJohn, M. D. Nave |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
010302 applied physics
Materials science Mechanical Engineering Alloy Metallurgy Metals and Alloys chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences 020501 mining & metallurgy 0205 materials engineering chemistry Mechanics of Materials Aluminium Phase (matter) 0103 physical sciences engineering Lamellar structure Interphase Growth rate Supercooling Eutectic system |
| Zdroj: | International Journal of Cast Metals Research. 13:1-7 |
| ISSN: | 1743-1336 1364-0461 |
| DOI: | 10.1080/13640461.2000.11819383 |
| Popis: | A magnesium-aluminium alloy of eutectic composition was solidified under two different cooling conditions, producing a low and a high growth rate of the eutectic solid-liquid interface. The high growth rate specimen contained smaller eutectic grains and cells, with a smaller interphase spacing compared with the low growth rate specimen. The high growth rate specimen also contained some primary Mg17Al12 dendrites, suggesting that the coupled zone is skewed towards the Mg phase with increased undercooling, A lamellar eutectic morphology was observed in the low growth rate specimen, while the morphology was fibrous in the high growth rate specimen. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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