| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Coatings to Protect Materials from Extreme Environments
|
| Presentation Title |
Functionally Graded Corrosion Resistant Coatings for Molten Salt Reactor Systems |
| Author(s) |
Holly Garich, Tim Hall, Stephen Raiman, Bruce Pint |
| On-Site Speaker (Planned) |
Holly Garich |
| Abstract Scope |
Molten salt advanced nuclear reactors are characterized by their use of molten salts, often molten fluorides, as coolants, enabling operation at low pressures, which provides inherent safety benefits over traditional light water reactor designs. Corrosion resistant coatings/overlays are important to maintain integrity of structural materials in these systems. Currently there is a lack of technology that can apply a uniform coating onto complex internal geometries posed by structures such as standard ASME boiler and pressure vessels. This work demonstrates a novel electrodeposition approach that enables application of uniform, functionally graded NiMo alloys onto ASME certified 316H stainless steel substrates. By controlling the deposition conditions, namely the electric field and electrolyte, precise control of alloy composition and grading of alloy composition can be achieved. Alloy properties, including corrosion resistance properties, are presented as a function of processing and post-treatment (hot isostatic press) conditions. |