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Title: Dissolution of Intermetallic Second-Phase Particles in Zircaloy-2 in High-Temperature Steam

Abstract

The stability of intermetallic second-phase particles (SPPs) in coated Zircaloy-2 was studied in 700 °C steam environments up to 20 hours. Hydrogen generated from high-temperature steam oxidation of uncoated Zr-induced δ-hydrides formation in the Zircaloy matrix. Synchrotron XRD demonstrated that longer exposure times increased hydride peak intensity and decreased intermetallic SPPs’ peak intensity. Cross-sectional SEM analysis verified the intermetallic SPPs’ volume fraction reduction. The size distribution of intermetallic SPPs was characterized and larger particles were dissolved at longer oxidation time. Finally, a correlation between the hydrogen concentration and the volume fraction of intermetallic SPPs at 700 °C steam environment was found, with the volume fraction of SPPs decreasing as hydrogen concentration increases.

Authors:
 [1];  [1];  [1];  [1];  [1];  [2];  [3];  [4];  [1];  [1]
  1. Univ. of Illinois, Urbana, IL (United States). Dept. of Nuclear, Plasma, and Radiological Engineering
  2. Univ. of Wisconsin, Madison, WI (United States). Dept. of Engineering Physics
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Nuclear Science and Technology Dept.
  4. Argonne National Lab. (ANL), Argonne, IL (United States). X-ray Science Division
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division; USDOE Office of Nuclear Energy (NE), Nuclear Energy University Programs (NEUP); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
OSTI Identifier:
1503231
Alternate Identifier(s):
OSTI ID: 1524420; OSTI ID: 1607437
Report Number(s):
BNL-211453-2019-JAAM
Journal ID: ISSN 1073-5623
Grant/Contract Number:  
SC0012704; FG02-07ER46471; FG02-07ER46453; AC02-06CH11357
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science
Additional Journal Information:
Journal Volume: 50; Journal Issue: 4; Journal ID: ISSN 1073-5623
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS

Citation Formats

Zhong, Weicheng, Liu, Xiang, Mouche, Peter A., Lin, Jun-Li, Park, Donghee, Elbakhshwan, Mohamed S., Gill, Simerjeet K., Ren, Yang, Stubbins, James F., and Heuser, Brent J. Dissolution of Intermetallic Second-Phase Particles in Zircaloy-2 in High-Temperature Steam. United States: N. p., 2019. Web. doi:10.1007/s11661-018-5090-5.
Zhong, Weicheng, Liu, Xiang, Mouche, Peter A., Lin, Jun-Li, Park, Donghee, Elbakhshwan, Mohamed S., Gill, Simerjeet K., Ren, Yang, Stubbins, James F., & Heuser, Brent J. Dissolution of Intermetallic Second-Phase Particles in Zircaloy-2 in High-Temperature Steam. United States. https://doi.org/10.1007/s11661-018-5090-5
Zhong, Weicheng, Liu, Xiang, Mouche, Peter A., Lin, Jun-Li, Park, Donghee, Elbakhshwan, Mohamed S., Gill, Simerjeet K., Ren, Yang, Stubbins, James F., and Heuser, Brent J. Thu . "Dissolution of Intermetallic Second-Phase Particles in Zircaloy-2 in High-Temperature Steam". United States. https://doi.org/10.1007/s11661-018-5090-5. https://www.osti.gov/servlets/purl/1503231.
@article{osti_1503231,
title = {Dissolution of Intermetallic Second-Phase Particles in Zircaloy-2 in High-Temperature Steam},
author = {Zhong, Weicheng and Liu, Xiang and Mouche, Peter A. and Lin, Jun-Li and Park, Donghee and Elbakhshwan, Mohamed S. and Gill, Simerjeet K. and Ren, Yang and Stubbins, James F. and Heuser, Brent J.},
abstractNote = {The stability of intermetallic second-phase particles (SPPs) in coated Zircaloy-2 was studied in 700 °C steam environments up to 20 hours. Hydrogen generated from high-temperature steam oxidation of uncoated Zr-induced δ-hydrides formation in the Zircaloy matrix. Synchrotron XRD demonstrated that longer exposure times increased hydride peak intensity and decreased intermetallic SPPs’ peak intensity. Cross-sectional SEM analysis verified the intermetallic SPPs’ volume fraction reduction. The size distribution of intermetallic SPPs was characterized and larger particles were dissolved at longer oxidation time. Finally, a correlation between the hydrogen concentration and the volume fraction of intermetallic SPPs at 700 °C steam environment was found, with the volume fraction of SPPs decreasing as hydrogen concentration increases.},
doi = {10.1007/s11661-018-5090-5},
url = {https://www.osti.gov/biblio/1503231}, journal = {Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science},
issn = {1073-5623},
number = 4,
volume = 50,
place = {United States},
year = {2019},
month = {1}
}

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