About this Abstract |
Meeting |
Superalloys 2024
|
Symposium
|
Superalloys 2024
|
Presentation Title |
A-3: Composition and Heat Treatment Modifications of a New Low-cost Ni Base Wrought Alloy for Improved Creep Resistance and Elevated Temperature Ductility |
Author(s) |
Ning Zhou, Filip Van Weereld, Gian Colombo, Mario Epler |
On-Site Speaker (Planned) |
Ning Zhou |
Abstract Scope |
Exp-G27 is a new low-cost Ni base wrought alloy developed by Carpenter Technology Corporation for applications such as jet engine turbine casing and internal combustion engine exhaust valves. Mainly strengthened by ă’, Exp-G27 has higher temperature stability compared to alloy 718. Within the targeted service temperature range between 704 °C to 871 °C, Exp-G27 demonstrates comparable mechanical performance as Waspaloy but with a significantly lower raw material cost. However, the creep and stress rupture of Exp-G27 is slightly lower than Waspaloy. In this study, a cost-performance tradeoff study was carried out to help make modification to the original Exp-G27 to achieve superior creep/stress rupture performance than Waspaloy while still being cost competitive. |
Proceedings Inclusion? |
Definite: At-meeting proceedings |