About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Materials Design and Alloy Development IV: Rapid Development
|
Presentation Title |
Composition Control in Laser Powder Bed Fusion Additive Manufacturing through Differential Evaporation |
Author(s) |
Meelad Ranaiefar, Edwin Schwalbach, Ibrahim Karaman, Raymundo Arroyave, Alaa Elwany |
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 the 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 relationship between processing parameters, composition, and properties for an additively manufactured part. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, ICME, Other |