| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing for Energy Applications II
|
| Presentation Title |
Microstructural Characterization and Thermomechanical Behavior of Additively Manufactured AlSi10Mg Material and Architected Cellular Structures |
| Author(s) |
Alya Alhammadi, Kamran Khan, Oraib Al-Ketan, Mohamed Ibrahim Hassan, Reza Rowshan, Rashid K Abu Al-Rub |
| On-Site Speaker (Planned) |
Mohamed Ibrahim Hassan |
| Abstract Scope |
There is increasing interest in new types of architected-metallic-cellular-structures for various applications due to advances in metallic-additive-manufacturing technologies. In this work, the microstructure- and mechanical-properties of additively-manufactured AlSi10Mg TPMS-sheet-based cellular-structures are studied. The tensile-coupons of base-material are fabricated using laser-powder-bed-infusion 3D-printing technique in three different printing-directions, XY-XZ-Z. Tests are carriedout at 25-200°C, coupons undergo a stress-relieving heat-treatment prior to testing which was shown through EBSD-maps to result in grain-growth and more ductile-behavior. It is seen that tensile-strength decreases with temperature increase that is associated with significant increase in elongation at fracture. Diamond TPMS-structures are also 3D-printed at four relative-density values and the morphology is studied through scanning-electron-microscopy and X-ray computed-tomography. The diamond TPMS-structures undergo compression-tests at 25°C-150°C. The maximum-strength, yield-stress, and Young-modulus increase with the increase in relative-density while the fracture-strain remains almost constant. The results show that AlSi10Mg Diamond TPMS-cellular-structures have excellent mechanical-properties making them ideal for lightweight-strong-structural systems. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |