About this Abstract |
Meeting |
2023 TMS Annual Meeting & Exhibition
|
Symposium
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Heterostructured and Gradient Materials (HGM V): New Mechanistic Discoveries Enabling Superior Properties
|
Presentation Title |
Work Hardening and Radiation Response of Gradient Alloys |
Author(s) |
Tianyi Sun, Zhongxia Shang, Xinghang Zhang |
On-Site Speaker (Planned) |
Xinghang Zhang |
Abstract Scope |
Metallic materials with gradient microstructures usually exhibit unique mechanical properties. FeCrAl and T91 alloys are promising cladding materials for next generation nuclear reactors. In this presentation, we will present the influence of gradient microstructures of FeCrAl and T91 alloys on their mechanical behavior. In situ micropillar compression studies showed the gradient alloys have good work hardening ability depending on their average laminate grain sizes. The radiation response of gradient alloys was investigated by using in situ radiations. The radiation damage, such as defect and He bubble distributions, depends on misorientation angle suggesting a strong capacity of non-equilibrium grain boundaries in accommodating radiation damage. The insight for the design of gradient materials with unique mechanical behavior and radiation tolerance will be discussed. |
Proceedings Inclusion? |
Planned: |