Thixoforming and Industrial Application of the Semi-Solid Alloy Al-6Si-2Mg |
| Journal |
Solid State Phenomena (Volumes 116 - 117) |
| Volume |
Semi-Solid Processing of Alloys and Composites |
| Edited by |
C.G. Kang, S.K. Kim and S.Y. Lee |
| Pages |
72-75 |
| DOI |
10.4028/www.scientific.net/SSP.116-117.72 |
| Online since |
October, 2006 |
| Authors |
Li Jun Xie,
Jun Xu,
Bi Cheng Yang,
Zhi Feng Zhang,
Li Kai Shi
|
| Keywords |
Al-6Si-2Mg, Mechanical Property, Microstructure, Thixoforming |
| Abstract |
An application of the semi-solid alloy Al-6Si-2Mg to produce automobile components
was carried out for farther development of this new alloy. The experiments were done in a
self-developed SSM trial line composed of semi-continuous caster combined with electromagnetic
stirring for feedstock billet production, 6-station induction reheating equipment for restoring
thixotropy of SSM billet and modified die-casting unit for semi-solid thixoforming. The results
show that Al-6Si-2Mg alloy has such a suitable fraction solid and low temperature sensitivity of
fraction solid that the controllability of SSM process is increased greatly. The billets have uniformly
fine microstructure with a higher degree of sphericity and also retain good thixotropic properties.
During thixoforming, the die is filled completely, the microstructure of components is dense, and
the primary phases are near spherical, and the mechanical property after heat treatment has good
performance. |
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