Research Article
Spheroidization and Coarsening of Eutectic Si Particles in Al-Si-Based Alloys
Table 3
Characteristics of Si particles in 319 alloy (coded A) at different conditions (Sr-modified).
| Condition | Average particle area (μm2) | Average particle length (μm) | Particle roundness (%) | Particle aspect ratio | Density (particles/μm2) | Μ | σ | μ | Σ | μ | σ | μ | σ | μ |
| As-cast | 3.61 | 8.48 | 2.79 | 2.91 | 74.67 | 23.75 | 1.91 | 0,73 | 15212 | 8 h@510°C | 6.71 | 12.75 | 3.54 | 3.31 | 81.25 | 18.81 | 1.71 | 0.66 | 10679 | 24 h@510°C | 11.71 | 18.46 | 5.04 | 4.58 | 70.97 | 24.76 | 1.89 | 0.83 | 6492 |
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