| About this Abstract |
| Meeting |
2023 TMS Annual Meeting & Exhibition
|
| Symposium
|
Phase Stability in Extreme Environments
|
| Presentation Title |
High Temperature Oxidation of CrAl Coated Accident Tolerant Fuel Cladding |
| Author(s) |
Sung Eun Kim, Dae Ho Kim, Hyun-gil Kim |
| On-Site Speaker (Planned) |
Sung Eun Kim |
| Abstract Scope |
After Fukushima accident, Accident Tolerant Fuel(ATF) cladding has been developed with purpose of improving a resistance to hydrogen explosion by retarding excessive hydrogen generation under accident environment. Zr alloys underwent rapid oxidation and excessive heat was released over 900°C and this resulted in hydrogen explosion. By enhancing of oxidation resistance, extended time to cope with accident situation can be achieved. CrAl exhibits superior oxidation and corrosion resistance required for stable operation of a nuclear power plants. Hence, we have been working on an improvement of oxidation resistance by Cr-Al coating on zircaloy cladding using AIP method.
This work focuses on high temperature oxidation of CrAl coating layer of ATF cladding. CrAl coated claddings were systemically prepared using Arc Ion Plating Method(AIP) method. Thermogravimetric analysis(TGA) tests were carried out under high temperature steam condition. Optical and microstructural analysis were employed to investigate the properties after the test. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Surface Modification and Coatings, Nuclear Materials, |