A new Al-Zr-Ti master alloy for ultrasonic grain refinement of wrought and foundry aluminum alloys
| Autor: | Dmitry G. Eskin, V. M. Sreekumar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
6111 aluminium alloy
Intermetallics Alloy Intermetallic chemistry.chemical_element 02 engineering and technology engineering.material 7. Clean energy 01 natural sciences Materials Science(all) Aluminium 0103 physical sciences Ultrasound General Materials Science European commission Engineering(all) Casting 010302 applied physics business.industry Metallurgy General Engineering 021001 nanoscience & nanotechnology chemistry engineering Foundry 0210 nano-technology business Grain refinement |
| Popis: | A new grain refiner master alloy based on the Al-Zr-Ti system was prepared by salt-assisted synthesis. Of the Al3Zr particles in the master alloy, 90% were ranged between 1 µm and 13 µm. An 80% reduction in the grain size was observed with the addition of an equivalent 0.2 wt.% Zr master alloy combined with ultrasonic treatment in an Al alloy. The new master alloy demonstrated a 30% improvement in grain refinement efficiency as compared to the master alloy prepared from conventional binary master alloys. The authors wish to acknowledge financial support from the ExoMet Project, which is co-funded by the European Commission in the 7th Framework Programme (Contract FP7-NMP3-LA-2012-280421), by the European Space Agency and by the individual partner organisations. |
| Databáze: | OpenAIRE |
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