| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Corrosion and Environmental Degradation: Theory and Practice
|
| Presentation Title |
Stress Corrosion Behavior of Stainless Steel 316 and High Entropy Alloy Al0.1CrCoFeNi in a Molten NaCl-Na2SO4 Salt |
| Author(s) |
Wylie Simpson, James Earthman |
| On-Site Speaker (Planned) |
Wylie Simpson |
| Abstract Scope |
Structural performance in molten salt environments is important for materials used in high-temperature aerothermal components at marine sites and for novel energy generation such as thermal solar and next-generation nuclear power systems. Successful development of materials for these applications will depend heavily on achieving a better understanding of their behavior under molten salt stress corrosion (MSSC). The MSSC performance of stainless steel 316 and high entropy alloy Al0.1CrCoFeNi was investigated in the present work. Samples of these materials were tested in a NaCl-Na2SO4 molten salt under biaxial loading conditions imposed using a novel disc bend configuration. Interaction zone depth was measured as a function of time after MSSC testing under different levels of biaxial stress. EDS mapping was used to track the elements in the substrate and salt interaction layers. These results were used to develop a better understanding of the governing mechanisms in the MSSC degradation of each alloy. |