Development of Al93Fe3Cr2Ti2/ nano-size γ-Al2O3 nanocomposite by ball milling process
The strength of conventional aluminium alloys decreases rapidly above 150°C, which limits their applications at elevated temperature. Rapid solidified (RS) nanoquasicrystalline Al93Fe3Cr2Ti2 (at.%) alloy has previously shown outstanding mechanical performance and microstructural stability at elevate...
Saved in:
| Main Author | |
|---|---|
| Format | Dissertation |
| Language | English |
| Published |
University of Oxford
2017
|
| Online Access | Get more information |
Cover
Loading…
| Summary: | The strength of conventional aluminium alloys decreases rapidly above 150°C, which limits their applications at elevated temperature. Rapid solidified (RS) nanoquasicrystalline Al93Fe3Cr2Ti2 (at.%) alloy has previously shown outstanding mechanical performance and microstructural stability at elevated temperatures (>300°C). In order to obtain an outstanding Al-based material with very high strength in a broad range of temperature, it is proposed to produce a nanocomposite consisting of nano-size ceramic particles homogenously distributed in a nanoquasicrystalline alloy matrix. The main challenges of processing nanoquasicrystalline nanocomposites in ball milling are to prevent the metastable quasicrystalline phase from decomposition and to avoid the agglomerations of nano-size γ-Al2O3. |
|---|---|
| Bibliography: | 0000000464995377 |