About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Processing and Characterization
|
Presentation Title |
E-3: Development and Analysis of Near Shape Powder Processed Aluminum Alloy Materials |
Author(s) |
Steven C. Johnson, William A Caron |
On-Site Speaker (Planned) |
Steven C. Johnson |
Abstract Scope |
Aluminum alloy materials fabricated using near shape consolidation of powders are highly desirable structural materials due to their low density, high strength to weight ratio, and efficient fabrication processing. In this work, near shape consolidation of Al7075 and pure Al powder materials was performed using room temperature mechanical compaction of powders and sintering in N2 (g) and inert atmospheres. Sintering was performed at temperatures below and above the solidus or melting temperature facilitating both solid and liquid phase sintering. Specific attention is paid to the effect oxygen content has on the sinter densification of these powders. Resultant materials were characterized for density, microstructure, phase development, hardness, and hardening response. Results indicate that densification is directly related to the volume of liquid formed during sintering. Additionally, while present primarily as a powder particle surface oxide, small oxygen content generally does not impede liquid phase sintering of pure Al and Al7075 alloys. |
Proceedings Inclusion? |
Planned: Light Metals |
Keywords |
Aluminum, Powder Materials, Other |