About this Abstract |
| Meeting |
MS&T26: Materials Science & Technology
|
| Symposium
|
Superalloy 718 and Derivatives 2026: Legacy, Innovations, and Future Directions
|
| Presentation Title |
Creep Properties and Overaging Response in Wrought Ni-Base Superalloy HAYNES® 233® Alloy |
| Author(s) |
Ian E. Bowley, Maria Saavedra, Austin M. Hernandez, Michael G. Fahrmann, Michael S. Titus |
| On-Site Speaker (Planned) |
Ian E. Bowley |
| Abstract Scope |
HAYNES® 233® alloy is a versatile next-generation high-temperature Ni-base superalloy offered in both the solution annealed and aged condition. This alloy exhibits a combination of excellent oxidation resistance, gamma-prime phase precipitation, good fabricability, and remarkable creep strength up to 2100 °F, making it applicable to load-bearing high-temperature corrosive environments. Most other alumina-forming alloys such as HAYNES® 214® alloy have poor creep strength, while many other gamma-prime forming alloys such as HAYNES® 282® alloy lose their strength and oxidation resistance at higher temperatures. In this presentation, the unique creep properties of 233 alloy will be elucidated through a combination of interrupted creep tests under both conditions, with preliminary transmission electron microscopy analysis of dislocation structures. Furthermore, we will show the over-aging and over-temperature response of the 233 alloy, which will be compared to those of similar Ni-base superalloys. |