Production of Al–B master alloys by mixing KBF4 salt into molten aluminum
| Autor: | Li Shen, Wang Qingliang, Jiu-zhou Zhao, Hong-sheng Zhao, Zheng-guang Li |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
chemistry.chemical_classification
Materials science Metallurgy Alloy Metals and Alloys Mixing (process engineering) chemistry.chemical_element Salt (chemistry) engineering.material Geotechnical Engineering and Engineering Geology Condensed Matter Physics Microstructure chemistry.chemical_compound chemistry Aluminium Impurity Phase (matter) Boride Materials Chemistry engineering |
| Zdroj: | Transactions of Nonferrous Metals Society of China. 23:294-300 |
| ISSN: | 1003-6326 |
| DOI: | 10.1016/s1003-6326(13)62460-7 |
| Popis: | Two mixing techniques, the immersion method and the vortex method, were adopted in the production of Al–3%B master alloys since the generally used production route involving the direct addition of KBF 4 salt to molten aluminum has several drawbacks. The experimental results demonstrate that the Al–B master alloys produced by the immersion method show a microstructure characterized by the appearances of AlB 12 phase and many agglomerations of boride particles, while the Al–B master alloy produced by the vortex method exhibits a well dispersed microstructure of AlB 2 particles in the matrix. The distinct microstructure features result from the differences in the stirring speed during the salt additions and the average size of the salt droplets achieved by the salt additions. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect