Abstract
Solidification process of A357 alloy with Sr addition was investigated in this paper. In particular, the effects of strontium and cooling rate on α-Al dendrite and Al-Si eutectic characteristic temperature were characterized by differential thermal analysis (DTA). Sr addition not only modifies the Al-Si eutectic, but also affects the morphology and structure of primary α-Al dendrite. Sr decreases the growth temperature of α-Al dendrite and Al-Si eutectic, and it also affects the dendrite growth mechanism. It has been found that such effect becomes more significant with higher cooling rate,.
| Original language | English |
|---|---|
| Pages (from-to) | 149-152 |
| Number of pages | 4 |
| Journal | China Foundry |
| Volume | 7 |
| Issue number | 2 |
| State | Published - May 2010 |
Keywords
- A357 aluminium alloy
- Differential thermal analysis (DTA)
- Solidification
- Strontium modification
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