| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1639375 | Transactions of Nonferrous Metals Society of China | 2009 | 5 Pages |
Abstract
Microscopical techniques were used to provide the semi-solid microstructure evolutions of ZK60+RE alloys formed by compression and equal channel angular extrusion(ECAE), respectively. It is found that after compression and ECAE, as-cast microstructures exhibit an obvious directional characteristic. The predeformation exerts a significant influence on the formation of thixotropic microstructures during partial remelting. Coalescence and Ostwald ripening are operative in the semi-solid mixture for both compression and ECAE formed alloys. Furthermore, the degree of spheroidization of ECAE formed alloy is better than that of compression formed alloy in appearance.
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Physical Sciences and Engineering
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Metals and Alloys
