Prospects of In-Situ α-Al2O3 as an Inoculant in Aluminum: A Feasibility Study
| Autor: | N. Hari Babu, Dmitry G. Eskin, V. M. Sreekumar |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
In situ
Materials science α-Al2O3 Sonication Composite number Alloy chemistry.chemical_element 02 engineering and technology engineering.material 01 natural sciences Aluminium Phase (matter) 0103 physical sciences in situ composites General Materials Science grain refinement Microbial inoculant 010302 applied physics Mechanical Engineering Metallurgy in-situ composites 021001 nanoscience & nanotechnology Microstructure ultrasonic cavitation chemistry Mechanics of Materials engineering 0210 nano-technology |
| Popis: | Copyright © 2017 The Author(s). In-situ α-Al2O3 was successfully synthesized and dispersed in Al alloy using B2O3 and ultrasonication-aided liquid mixing technique. Microstructure analysis identified α-Al2O3 as the most common phase in the composite master alloy, whereas AlB12 was frequently observed and AlB2 was rarely found in the alloy. Grain refinement analysis of selected Al alloys registered a transition of columnar to equiaxial grains of α-Al with the inoculation of the master alloy and ultrasonication treatment. Similarly, an improvement in the mechanical properties of A357 alloy was observed with the combination of inoculation and ultrasonication treatment. 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 organizations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|