| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Gas Atomization and Powder Bed Fusion Optimization Studies for the Al10SiMg Alloy |
| Author(s) |
Sharon Park, George Benson, Thinh Huynh, Holden Hyer, Le Zhou, Edward Dein, Yongho Sohn |
| On-Site Speaker (Planned) |
Sharon Park |
| Abstract Scope |
perimental investigations were carried out to optimize gas atomization and laser powder bed fusion (PBF) for Al10SiMg alloy. Atomization parameters, such as gas pressure, melt temperature and melt flow rate were correlated to the powder yield, particle size distribution and microstructure with due respect to particle size distribution suitable for PBF. Powder bed fusion parameters such as laser power, scan speed, hatch spacing and slice thickness were independently varied to examine the influence of particle size distribution and powder recycling on the density, microstructure and mechanical behavior of as-built Al10SiMg alloy. Excellent “printability,” well-documented for Al10SiMg alloy was observed for a wide range of laser PBF parameters, particle size distribution, and powder recycling. Defects arising from insufficient melting or evaporation/boiling associated with particle size distribution and continued powder reuse provided some insight to the absorption-melting-solidification characteristics of Al10SiMg alloy during PBF. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |