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Title: Continuum model for hydrogen pickup in zirconium alloys of LWR fuel cladding

A continuum model for calculating the time-dependent hydrogen pickup fractions in various Zirconium alloys under steam and pressured water oxidation has been developed in this paper. Using only one fitting parameter, the effective hydrogen gas partial pressure at the oxide surface, a qualitative agreement is obtained between the predicted and previously measured hydrogen pickup fractions. The calculation results therefore demonstrate that H diffusion through the dense oxide layer plays an important role in the hydrogen pickup process. Finally, the limitations and possible improvement of the model are also discussed.
Authors:
 [1] ;  [2] ;  [3] ; ORCiD logo [3]
  1. Univ. of Wisconsin, Madison, WI (United States). Dept. of Engineering Physics and Nuclear Engineering
  2. Univ. of Wisconsin, Madison, WI (United States). Dept. of Materials Science and Engineering; Chinese Academy of Sciences (CAS), Hefei (China). Key Lab. of Neutronics and Radiation Safety. Inst. of Nuclear Energy Safety Technology
  3. Univ. of Wisconsin, Madison, WI (United States). Dept. of Engineering Physics and Nuclear Engineering. Dept. of Materials Science and Engineering
Publication Date:
Grant/Contract Number:
AC05-00OR22725; FG02-08ER46493
Type:
Accepted Manuscript
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 121; Journal Issue: 13; Journal ID: ISSN 0021-8979
Publisher:
American Institute of Physics (AIP)
Research Org:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; niobium; corrosion; oxidation; oxide surfaces; surface oxidation; hydrogen reactions; diffusion barriers; interface diffusion; computer modeling
OSTI Identifier:
1465333
Alternate Identifier(s):
OSTI ID: 1361801

Wang, Xing, Zheng, Ming-Jie, Szlufarska, Izabela, and Morgan, Dane. Continuum model for hydrogen pickup in zirconium alloys of LWR fuel cladding. United States: N. p., Web. doi:10.1063/1.4979472.
Wang, Xing, Zheng, Ming-Jie, Szlufarska, Izabela, & Morgan, Dane. Continuum model for hydrogen pickup in zirconium alloys of LWR fuel cladding. United States. doi:10.1063/1.4979472.
Wang, Xing, Zheng, Ming-Jie, Szlufarska, Izabela, and Morgan, Dane. 2017. "Continuum model for hydrogen pickup in zirconium alloys of LWR fuel cladding". United States. doi:10.1063/1.4979472. https://www.osti.gov/servlets/purl/1465333.
@article{osti_1465333,
title = {Continuum model for hydrogen pickup in zirconium alloys of LWR fuel cladding},
author = {Wang, Xing and Zheng, Ming-Jie and Szlufarska, Izabela and Morgan, Dane},
abstractNote = {A continuum model for calculating the time-dependent hydrogen pickup fractions in various Zirconium alloys under steam and pressured water oxidation has been developed in this paper. Using only one fitting parameter, the effective hydrogen gas partial pressure at the oxide surface, a qualitative agreement is obtained between the predicted and previously measured hydrogen pickup fractions. The calculation results therefore demonstrate that H diffusion through the dense oxide layer plays an important role in the hydrogen pickup process. Finally, the limitations and possible improvement of the model are also discussed.},
doi = {10.1063/1.4979472},
journal = {Journal of Applied Physics},
number = 13,
volume = 121,
place = {United States},
year = {2017},
month = {4}
}