| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advancing Current and State-of-the-Art Application of Ni- and Co-based Superalloys
|
| Presentation Title |
A Comparison of Creep Properties between Conventionally Cast and Additive Manufactured CMSX-4 |
| Author(s) |
David Bürger, Alireza Basir Parsa, Markus Ramsperger, Carolin Körner, Gunther Eggeler |
| On-Site Speaker (Planned) |
David Bürger |
| Abstract Scope |
Recently, it was shown that selective electron beam melting (SEBM) can be used to manufacture single crystal Ni-base superalloys (SXs). SEBM represents a powder bed additive manufacturing near net-shape processing technology, which is characterized by high solidification rates and high thermal gradients. In the present work, the microstructural and creep properties of SX SEBM and conventionally cast materials are compared. The cast material which was produced in a Bridgman process serves as reference state and was homogenized by a typical multiple step heat treatment to establish a fine γ/γ’-microstructure. The SEBM material was investigated in its as-built state, and after an additional homogenization heat treatment. The evolution of the microstructures of the two materials during processing and heat treatment is compared. Creep test with [001] tensile miniature specimen are performed in two stress / temperature regimes (1050 °C, 160 MPa and 850°C, 600 MPa). |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |