| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Coatings and Surface Engineering for Environmental Protection II
|
| Presentation Title |
Effect of Surface Coating on Corrosion Product Deposition Behavior in PWR Fuel Cladding |
| Author(s) |
Junhyuk Ham, Yunju Lee, Seung Chang Yoo, Ji Hyun Kim |
| On-Site Speaker (Planned) |
Junhyuk Ham |
| Abstract Scope |
CRUD resistant coating effect on fuel cladding in primary water condition of pressurized water reactor was investigated. Two different materials which can reduce Van der Waals force between surface and CRUD particle were coated; TiN and ZrN. Each substance was coated under physical vapor deposition method. Test conditions were set by thermohydraulics calculations to generate sub-cooled boiling on the upper side of cladding surface.
CRUD distribution and cross-sectional morphology analyses were conducted by scanning electron microscope and focused ion beam. Chemical composition of CRUD was measured by energy dispersive X-ray spectroscopy.
The experiments with zirconium cladding and CRUD resistant coated claddings were conducted during 7 and 14 days respectively. The thickness of CRUD on zirconium cladding was the thickest compared to that of TiN and ZrN coated cladding. The chemical composition of CRUD deposited right above the heated zirconium cladding surface was different to that of other cases. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |