| About this Abstract |
| Meeting |
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Symposium
|
Materials in Nuclear Energy Systems (MiNES) 2021
|
| Presentation Title |
In Situ Mechanical Testing Method for Materials in Gaseous Environments |
| Author(s) |
Peter Beck, Jake Quincey, Dustin Mangus, Adam Koziol, George A. Young, Guillaume Mignot, Samuel A. Briggs, Julie D. Tucker |
| On-Site Speaker (Planned) |
Peter Beck |
| Abstract Scope |
Advanced heat transfer fluids (such as He, supercritical CO2) for Gen IV reactor designs are being considered for their increased efficiency and power density at high temperatures. In situ mechanical testing of structural materials is needed to qualify materials for safe use in reactor designs. Simulated operating conditions make such work challenging due to high temperature, pressure, and geometric constraints impeding traditional crack growth testing. This work presents a novel, low-profile mechanism for crack growth testing in reactor environments, featuring a metal bellows and using a modified electric potential drop method. This compact device can be deployed in-core and will enable environmentally assisted crack growth testing. Low-cycle fatigue tests are performed on 316/316L stainless steel in a variety of elevated temperature (550°C) gaseous environments, including air, He, and supercritical CO2. Analogous tests are conducted in a traditional load frame to compare and validate the new testing method. |
| Proceedings Inclusion? |
Undecided |