| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
| Presentation Title |
Development of W-based Alloys for High Temperature Applications by Additive Manufacturing |
| Author(s) |
Ishtiaq Ahmed F Rabbi, Narendra B. Dahotre |
| On-Site Speaker (Planned) |
Ishtiaq Ahmed F Rabbi |
| Abstract Scope |
Through the elimination of manufacturing issues including high-temperature thermomechanical processing and machining, additive manufacturing (AM) presents numerous potentials to expand the application of refractory metals and alloys. W, which has excellent high temperature mechanical properties and a high elastic modulus, can serve as a good base material for the creation of novel AM alloys for improved high temperature performance. The obstacles to successfully printing of W-based alloy, however, are high heat conductivity and high ductile to brittle transition temperature. The objective of this study is to evaluate whether W-xCr wt.% alloys can be manufactured using additive laser manufacturing. Process parameters and powder prototypes were optimized for printing an alloy with a greater relative density. Microstructure and mechanical properties of AM-fabricated specimens were studied by analyzing the phases evolution, grain orientation and size, as well as comparing the mechanical performance of various compositions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, High-Temperature Materials, Characterization |