About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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Phase Transformations and Microstructural Evolution
|
Presentation Title |
Microstructural Evolution during Homogenization Heat Treatment of AA 6063 Alloy in Batch and Continuous Furnaces |
Author(s) |
Deniz Kavrar Urk, Akın Obalı, Mertol Gokelma, Gökçen Gökçe, Murat Doğan |
On-Site Speaker (Planned) |
Murat Doğan |
Abstract Scope |
Homogenization heat treatment after casting is performed to eliminate the dendritic segregation and coarse eutectic intermetallic phases since they reduce the fracture toughness of aluminium alloys. By the homogenization treatment, β-AlFeSi can be converted to more spherical α-AlFeSi particles. The β→α transition is crucial because the β-AlFeSi particles cause a number of surface defects and limit the extrudability. Also, the rate of cooling in the homogenization furnace is one of the critical inflluencing factors on the size of the Mg2Si precipitates which affect the mechanical properties positively. In this study, billets of AA 6063 from the same cast were put through homogenization heat treatment by using batch type and continuous furnaces. The solution, quenching and aging heat treatment were applied to each sample. Microstructural characterization by SEM and Vickers hardness test were conducted to understand the effects of the furnace type on the mechanical properties of aged AA 6063 aluminium. |
Proceedings Inclusion? |
Planned: |
Keywords |
Aluminum, Characterization, Mechanical Properties |