About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing of Refractory Metallic Materials
|
Presentation Title |
Case Studies on Additive Manufacturing of Refractory Materials |
Author(s) |
Jeongwoo Lee, Yung C. Shin |
On-Site Speaker (Planned) |
Yung C. Shin |
Abstract Scope |
This talk covers the case studies on additive manufacturing of highly refractive materials. The first case study is to demonstrate the laser cladding of tungsten on ODS steel for plasma-facing applications. Due to the high melting point of Tungsten, melting of the material requires large energy from the laser. With the substrate materials working as binder, about 88 w% of tungsten was achieved. Successive laser heating/melting was applied to each layer deposited to improve bonding. The second case investigates the cladding of Mo on an H13 tool steel substrate by the blown-powder laser additive manufacturing process to improve its wear and corrosion resistance. To alleviate crack and low concentration due to the large mismatch in thermal properties between Mo and H13, layers were built by functionally graded mixtures of Mo and H13 tool steel powders. A high Mo concentration of 76.7 wt% was achieved. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Process Technology, High-Temperature Materials |