| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Materials Design and Alloy Development II
|
| Presentation Title |
Composition Control in Laser Powder Bed Fusion Additive Manufacturing Through Differential Evaporation |
| Author(s) |
Meelad Ranaiefar, Ibrahim Karaman, Alaa Elwany, Raymundo Arroyave |
| On-Site Speaker (Planned) |
Meelad Ranaiefar |
| Abstract Scope |
Differential evaporation during part fabrication using laser powder bed fusion additive manufacturing can contribute to variation in composition. This uncontrolled evaporation is a prevalent issue throughout the additive manufacturing process and is associated with uncontrolled changes in structure and properties, along with reduced performance of a part. However, we can utilize the underlying mechanisms of differential evaporation to direct processing parameters, control composition, tailor location specific properties, and achieve desired performance. In this work, a model for predicting differential evaporation and the associated change in composition during laser powder bed additive manufacturing is presented. This is used to investigate the effects of alloying elements and processing parameters on evaporation and composition. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |