| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmentally Assisted Cracking: Theory and Practice
|
| Presentation Title |
High-resolution Characterization of High-temperature Water Corrosion Under Compression vs Tension |
| Author(s) |
Daniel K. Schreiber, Karen Kruska, Ziqing Zhai |
| On-Site Speaker (Planned) |
Daniel K. Schreiber |
| Abstract Scope |
In this work we consider the relative role of applied tensile versus compressive stress on the resulting intergranular corrosion behavior of Ni-Cr alloys under simulated PWR primary water conditions. While tension is usually associated with stress corrosion crack propagation, compressive stresses (e.g. surface peening) are oftentimes used to inhibit cracking. Using a 4-point bend sample geometry, a single sample experiences both uniaxial compressive and tensile stresses on opposite sides of the sample, enabling more direct comparison of the immediate effect of the stress state on material degradation. Comparisons will be presented, using a combination of analytical electron microscopy and atom probe tomography, of the resulting surface and intergranular corrosion response of each region. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Environmental Effects, Nuclear Materials |