About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
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Symposium
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Deformation-induced Microstructural Evolution during Solid Phase Processing: Experimental and Computational Studies
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Presentation Title |
Aging Kinetics in Cold Sprayed AA 7050 Material |
Author(s) |
Lorena Perez, Luke N. Brewer |
On-Site Speaker (Planned) |
Lorena Perez |
Abstract Scope |
In this work, we describe the effect of post-deposition heat treatment on the nanostructure and mechanical properties of cold sprayed aluminum alloys AA7050. Cold spray deposition is showing strong potential as a repair technology and a key goal is to achieve mechanical properties comparable to wrought material (AA7050-T7451). The micro-and nanostructures of cold sprayed material are distinctly different from the wrought material. We have generated as-atomized and solutionized AA7050 feedstock powders and have cold sprayed them. These materials were then heat treated over a range of conditions to simulate artificial aging: solutionized for 1h at 480˚C and then aged at 120˚C for different dwell times. The hardness data suggests that the aging kinetics are accelerated for the cold sprayed materials, which is reasonable given their high defect density. Differential scanning calorimetry and electron microscopy are being employed to investigate this change in precipitation kinetics for cold sprayed AA7050. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Characterization, Surface Modification and Coatings |