About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Aluminum Alloys, Characterization and Processing
|
Presentation Title |
Anisotropy of Tearing Behavior in AA7075-T6 Sheet at 200 °C |
Author(s) |
Daniel Nikolai, Eric M. Taleff |
On-Site Speaker (Planned) |
Daniel Nikolai |
Abstract Scope |
The tearing resistance of AA7075-T6 sheet material was measured at room temperature and at 200 °C along different directions. Tearing resistance is characterized by the energy required to completely tear a specimen, with higher energies indicating greater tearing resistance. Specimens were ideally tested at 200 °C for times no longer than would provide a retrogression heat treatment, from which the full strength of the T6 condition may be recovered by a reaging heat treatment. Tearing resistance is significantly greater at 200 °C than at room temperature, which promises improved deformation processing of AA7075-T6. The tearing resistance at 200 °C varies with direction relative to the rolling direction. The tearing resistance is highest in the L-T orientation and lowest in the T-L orientation, by ASTM E871 specimen orientation designations. The significance of these results to the deformation processing of AA7075-T6 sheet at elevated temperatures will be discussed. |
Proceedings Inclusion? |
Planned: Light Metals |