About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys: Development and Manufacturing
|
Presentation Title |
Microstructural and Mechanical characteristics of processed Al7068 alloy |
Author(s) |
Nitish Raja |
On-Site Speaker (Planned) |
Nitish Raja |
Abstract Scope |
Severe plastic deformation (SPD) of age hardening alloys are challenging due to higher risk of material failure. Also, these alloys have advantage of large-scale modulation of the properties by precisely controlling ageing time and temperature. However, the evolution of precipitate phases in the heavily deformed materials leads to finer size and their uniform distribution throughout the material, leading to a significant improvement in the strength and ductility. In the studied Al7068 alloy, the superior strength of nearly 670 MPa with 19% elongation is obtained, which is mainly because of fine ƞ precipitate (5 nm) size. In addition to size and their distribution, the orientation of precipitate phase also significantly upgrades the material properties. SPD at high temperature leads to precipitate (MgZn2) evolution along numerous planes, but the evolution along (111) in the aluminum matrix have a significant effect as precipitate and matrix have a common crystallographic orientation along this plane. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Mechanical Properties, Other |