Study on Weight-gain Model of FeCrAl Alloy by Steam Oxidation at Medium and High Temperature

Liu Zhen; Zhang Xiaohong; Qiao Yingjie; He Kun; Du Peinan; Zhang Ruiqian; Du Shiyu

doi:10.13832/j.jnpe.2024.03.0139

Volume 45 Issue 3

Jun. 2024

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Article Navigation > Nuclear Power Engineering > 2024 > 45(3): 139-145

Liu Zhen, Zhang Xiaohong, Qiao Yingjie, He Kun, Du Peinan, Zhang Ruiqian, Du Shiyu. Study on Weight-gain Model of FeCrAl Alloy by Steam Oxidation at Medium and High Temperature[J]. Nuclear Power Engineering, 2024, 45(3): 139-145. doi: 10.13832/j.jnpe.2024.03.0139

Citation:

Liu Zhen, Zhang Xiaohong, Qiao Yingjie, He Kun, Du Peinan, Zhang Ruiqian, Du Shiyu. Study on Weight-gain Model of FeCrAl Alloy by Steam Oxidation at Medium and High Temperature[J]. Nuclear Power Engineering, 2024, 45(3): 139-145. doi: 10.13832/j.jnpe.2024.03.0139

Citation:

Liu Zhen, Zhang Xiaohong, Qiao Yingjie, He Kun, Du Peinan, Zhang Ruiqian, Du Shiyu. Study on Weight-gain Model of FeCrAl Alloy by Steam Oxidation at Medium and High Temperature[J]. Nuclear Power Engineering, 2024, 45(3): 139-145. doi: 10.13832/j.jnpe.2024.03.0139

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Study on Weight-gain Model of FeCrAl Alloy by Steam Oxidation at Medium and High Temperature

doi: 10.13832/j.jnpe.2024.03.0139

1.
College of Materials Science and Chemical Engineering, Harbin Engineering University, Harbin, 150001, China
2.
Nuclear Power Institute of China, Chengdu, 610213, China
3.
School of Materials Science and Engineering, China University of Petroleum, Qingdao, Shandong, 266580, China

Received Date: 2023-07-10
Rev Recd Date: 2023-08-18
Publish Date: 2024-06-13

Abstract

Abstract

In order to predict the steam oxidation behavior of FeCrAl alloy at different temperatures and provide the model for the evolution simulation of the performance of FeCrAl cladding under loss of coolant accident (LOCA), a two-stage differential oxidation weight-gain model was proposed based on the reaction and diffusion control mechanisms, and a parameter calibration method was also presented. Combined with the experimental data from FeCrAl steam oxidation tests at high temperature (900-1200℃) and medium temperature (400℃), the model can uniformly describe the weight-gain behavior of FeCrAl alloy in the temperature range of 400-1200℃, and the error with experimental data is controlled within 20%. At the same time, it is observed that the critical weight-gain of the reaction-diffusion mechanism is basically unchanged at 400-900℃, but increases significantly at higher temperature, because the oxidation layer grows too fast to form the dense oxidation protective layer. In addition, considering the influence of initial oxide layer from water corrosion and the change of steam pressure during LOCA, a modified scheme of the oxidation-weight gain model is given. This study is expected to provide oxidation model and parameters for the failure behavior simulation of the FeCrAl alloy cladding under LOCA accidents.
- FeCrAl alloy,
- Accident-tolerant fuel (ATF),
- Oxidation weight gain,
- High temperature steam oxidation,
- Loss of coolant accident (LOCA)

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References(18)

References

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