Research Article
Effect of Isothermal Holding on Semisolid Microstructure of Al–Mg2Si Composites
Table 2
Results of nodularity for samples before and after heat treatment.
| | Type | RC* (<0.65) (%) | RC (0.65–0.8) | RC (0.8–1) |
| | Al–15% Mg2Si (as cast) | 40 | 36 | 24 | | Al–15% Mg2Si (heat treated) | 22.73 | 40.91 | 36.36 | | Al–20% Mg2Si (as cast) | 90 | 0 | 10 | | Al–20% Mg2Si (heat treated) | 13.46 | 17.31 | 69.23 | | Al–25% Mg2Si (as cast) | 90.91 | 4.55 | 4.55 | | Al–25% Mg2Si (heat treated) | 37.21 | 25.58 | 37.21 |
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*Radius of curvature.
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