| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
|
| Presentation Title |
Surpassing know Creep Resistance for Haynes 282 through Wire Arc Additive Manufacturing |
| Author(s) |
Sophia E. Hill, Jonah Klemm-Toole |
| On-Site Speaker (Planned) |
Sophia E. Hill |
| Abstract Scope |
Gas metal arc welding (GMAW) based wire arc additive manufacturing (WAAM) offers high deposition rates and low equipment cost to replace large structural components for a wide range of applications. Precipitation hardened Ni-based superalloys, such as Haynes 282, are often used in power generation due to a combination of good weldability and superior creep performance. In this presentation, we discuss the microstructure evolution and high temperature mechanical properties of WAAM Haynes 282. The effect of post-build heat treatment selection on gamma prime precipitation is presented. Tensile and creep properties of WAAM Haynes 282 evaluated at 760°C are compared to wrought and welded forms of the alloy. Perspectives on the trade-off between ease of post-processing large WAAM components and high temperature performance are discussed. |