Fabrication of Al8Si0.2Mg secondary aluminum-SiC composite through semi-solid and liquid casting process
In this paper, the microstructure and mechanical properties were investigated of semi-solid slurry Al8Si0.2Mg secondary aluminum alloy mixed with reinforcing SiC particles and prepared with mechanical stirring, and poured in liquid state for gravity casting and squeeze casting. As cast Al8Si0.2Mg-5w...
Saved in:
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
IOP Publishing
2025-01-01
|
| Series: | Materials Research Express |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/2053-1591/ade11e |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | In this paper, the microstructure and mechanical properties were investigated of semi-solid slurry Al8Si0.2Mg secondary aluminum alloy mixed with reinforcing SiC particles and prepared with mechanical stirring, and poured in liquid state for gravity casting and squeeze casting. As cast Al8Si0.2Mg-5wt%SiC composite was influenced by squeeze pressure that increased tensile strength by 56% and Brinell hardness by 12.9% from those with gravity casting of the composite. On the other hand, effects of SiC content and added Mg on microstructure and mechanical properties were also investigated. With squeeze casting, adding 1 wt% Mg further increased the tensile strength by 24% and hardness by 18%. The T6 heat treatment tended to increase both tensile strength and hardness. The Al8Si0.2Mg-5wt%SiC composite, with 1 wt%Mg added, squeeze cast, and subjected to T6 heat treatment, showed the greatest tensile strength of 290 MPa and Brinell hardness of 130 HB. |
|---|---|
| ISSN: | 2053-1591 |