| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1651778 | Materials Letters | 2007 | 4 Pages |
Abstract
Substantial undercooling up to 550 K (0.386TE, with TE as the melting point) was achieved in eutectic Ni78.6Si21.4 alloy melt using glass fluxing combined with cyclic superheating. Accordingly, a particular refined microcrystalline morphology is obtained in the as-solidified structure. The physical mechanism of the grain refinement subjected to high undercooling is interpreted in terms of the classical nucleation theory and LKT/BCT model. It was concluded that the above refinement can be ascribed to the substantially increased nucleation rate under high undercooling.
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Authors
Yiping Lu, Feng Liu, Gencang Yang, Haipeng Wang, Yaohe Zhou,