About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
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Symposium
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Additive Manufacturing: Advanced Characterization with Synchrotron, Neutron, and In Situ Laboratory-scale Techniques
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Presentation Title |
A-23: Creep Behavior of a AlSiMg Alloy Produced by Additive Manufacturing |
Author(s) |
Chiara Paoletti, Stefano Spigarelli, Marcello Cabibbo, Emanuela Cerri |
On-Site Speaker (Planned) |
Chiara Paoletti |
Abstract Scope |
The present study aims at investigating the effect of the microstructure of additive manufactured samples on the creep beavhior of a AlSiMg alloy. Constant load creep experiments were carried out between 150, 175 and 205°C on an AlSiMg alloy produced by Powder Bed Fusion AM. The samples were mostly strained up to rupture, although in some cases the test were interrupted at the early onset of the tertiary region. Analyzing the time-to rupture,, in the different load and temperature conditions, as a function of the applied stress, it can be clearly seen that the alloy produced by AM is substantially comparable, in terms of time to rupture, with an alloy of similar composition, tested in the die-cast state. The high values of the stress expontent suggest that the creep behavior is strongly affected by the presence of secondary-phase particles. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |