| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Solid State Diffusion Bonding of Metals and Alloys
|
| Presentation Title |
Solid State Joining of Dissimilar Ni-based Superalloys Using Field Assisted Sintering Technology |
| Author(s) |
Charis Iann Lin, Namiko Yamamoto, Derek S. King, Jogender Singh |
| On-Site Speaker (Planned) |
Charis Iann Lin |
| Abstract Scope |
Turbine disks are currently made of nickel-based superalloys, known for their high strength and creep resistance at high temperatures. Dual-microstructure turbine disks allow for significant weight-savings, but current methods of joining dissimilar nickel-based superalloys such as friction welding exhibit a heat affected zone and localized melting at the interface, leading to weak bonding. Here, we study Field Assisted Sintering Technology as a novel method to sinter the nickel-based superalloy powder CM247LC to high relative density. In addition, the sintered CM247LC material was joined with Inconel 718 using FAST as a solid state joining method. Our preliminary results indicate that the bond between the two superalloys has a similar tensile strength to the base Inconel 718 material. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |