| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Advanced Characterization of Materials for Nuclear, Radiation, and Extreme Environments
|
| Presentation Title |
Successful, Unsuccessful, and Partially-successful Attempts at Understanding Alloy Corrosion in Molten Salts |
| Author(s) |
Stephen Raiman |
| On-Site Speaker (Planned) |
Stephen Raiman |
| Abstract Scope |
We present a combined experimental and computational strategy aimed at fundamentally understanding corrosion of alloys in molten salts. Since important phenomena may be present in both the materials and in the salt, efforts at understanding and controlling each are presented. Model Ni-Cr alloys were fabricated with controlled microstructures, and exposed to various conditions to provide the evidence basis for 1D and 2D engineering-scale diffusion models. X-ray spectroscopy and rapid solidification were explored to identify the speciation of corrosion products in the salts, and to develop a thermodynamic description of the alloy-salt system. In an effort to maintain greater control of the molten salt environment, new processes to control and measure salt purity are presented. This talk will showcase a loosely-connected hodgepodge of materials science and salt chemistry aimed at advancing our understanding of alloy corrosion in molten salts |