About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing for Energy Applications V
|
Presentation Title |
Directional Recrystallization of an Additively Manufactured Ni-base Superalloy |
Author(s) |
Zachary C. Cordero |
On-Site Speaker (Planned) |
Zachary C. Cordero |
Abstract Scope |
Metal additive manufacturing processes can create intricate components that are difficult to form with conventional processing methods; however, the as-printed materials often have fine grain structures that result in poor high-temperature creep properties, especially compared to directionally solidified materials. Here, we address this limitation in an exemplary additively manufactured Ni-base superalloy by converting the fine as-printed grain structure to a coarse columnar one via directional recrystallization. The present results demonstrate how directional recrystallization of additively manufactured Ni-base superalloys can achieve large columnar grains, manipulate crystallographic texture to minimize thermal stresses expected in service, and functionally grade the grain structure to selectively enhance fatigue or creep performance in complex net-shaped components. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, High-Temperature Materials, Copper / Nickel / Cobalt |