| About this Abstract |
| Meeting |
Materials Science & Technology 2020
|
| Symposium
|
Multi-material Additive Manufacturing: Processing and Heterogeneous Materials Design
|
| Presentation Title |
Additive Manufacturing Design of Functionally Graded Materials |
| Author(s) |
Noah A. Sargent, Xin Wang, Kun Li, Wei Xiong |
| On-Site Speaker (Planned) |
Noah A. Sargent |
| Abstract Scope |
Directed Energy Deposition is one of the powder-based additive manufacturing techniques with the advantage of fabricating Functionally Graded Materials (FGMs) through a dynamic variation of composition in consecutive layers along the building direction. FGMs have recently gained attention for their potential to enhance the performance of components that require a combination of material properties not available in traditional monolithic alloys. While the concept of FGMs shows promise, difficulties combining dissimilar materials such as segregation of alloying elements, residual stress, and precipitation of brittle intermetallic phases have limited their application. In this work, (CALPHAD-based: CALculation of PHAse Diagrams, ICME: Integrated Computational Materials Engineering) modeling techniques are used to design FGMs. Two case studies on SS316/HSLA (Stainless Steel 316/High Strength Low Alloy Steel) and Steel/Superalloy FGMs will be presented. |