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Title: High temperature oxidation behavior of Zr-1Nb cladding alloy E110.

Abstract

Oxidation experiments were conducted at 1000-1200 C in flowing steam with samples of as-received Zr-1Nb alloy E110 tubing and/or polished E110 tubing. The purpose was to determine the oxidation behavior of this alloy under postulated loss-of-coolant accident conditions in light water reactors. The as-received E110 tubing exhibited a high degree of susceptibility to nodular oxidation and breakaway oxidation at relatively low test times, as compared to other cladding alloys. The nodules grew much more rapidly at 1000 C than 1100 C, as did the associated hydrogen uptake. The oxidation behavior was strongly affected by the surface condition of the materials. Polishing to {approx}0.1 {micro}m roughness (the roughness of the as-received tubing was {approx}0.4 {micro}m) delayed breakaway oxidation. Polishing also removed surface impurities. For polished samples oxidized at 1100 C, no significant nodular oxidation appeared up to 1000 s. For polished samples oxidized at 1000 C, hydrogen uptake >100 wppm was delayed from {approx}300 s to >900 s. Weight-gain coefficients were determined for pre-breakaway oxidation of polished-only and machined-and-polished E110 tubing samples: 0.162 (mg/cm{sup 2})/s{sup 0.5} at 1000 C and 0.613 (mg/cm{sup 2})/s{sup 0.5} at 1100 C.

Authors:
; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USNRC
OSTI Identifier:
967941
Report Number(s):
ANL/NE/JA-63251
Journal ID: ISSN 0022-3115; JNUMAM; TRN: US200924%%146
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: J. Nucl. Mater.; Journal Volume: 393; Journal Issue: 3 ; Sep. 15, 2009
Country of Publication:
United States
Language:
ENGLISH
Subject:
08 HYDROGEN; ACCIDENTS; ALLOYS; HYDROGEN; IMPURITIES; LOSS OF COOLANT; OXIDATION; POLISHING; ROUGHNESS; STEAM; WATER

Citation Formats

Yan, Y., Burtseva, T., Billone, M. C., and Nuclear Engineering Division. High temperature oxidation behavior of Zr-1Nb cladding alloy E110.. United States: N. p., 2009. Web. doi:10.1016/j.jnucmat.2009.06.029.
Yan, Y., Burtseva, T., Billone, M. C., & Nuclear Engineering Division. High temperature oxidation behavior of Zr-1Nb cladding alloy E110.. United States. doi:10.1016/j.jnucmat.2009.06.029.
Yan, Y., Burtseva, T., Billone, M. C., and Nuclear Engineering Division. Tue . "High temperature oxidation behavior of Zr-1Nb cladding alloy E110.". United States. doi:10.1016/j.jnucmat.2009.06.029.
@article{osti_967941,
title = {High temperature oxidation behavior of Zr-1Nb cladding alloy E110.},
author = {Yan, Y. and Burtseva, T. and Billone, M. C. and Nuclear Engineering Division},
abstractNote = {Oxidation experiments were conducted at 1000-1200 C in flowing steam with samples of as-received Zr-1Nb alloy E110 tubing and/or polished E110 tubing. The purpose was to determine the oxidation behavior of this alloy under postulated loss-of-coolant accident conditions in light water reactors. The as-received E110 tubing exhibited a high degree of susceptibility to nodular oxidation and breakaway oxidation at relatively low test times, as compared to other cladding alloys. The nodules grew much more rapidly at 1000 C than 1100 C, as did the associated hydrogen uptake. The oxidation behavior was strongly affected by the surface condition of the materials. Polishing to {approx}0.1 {micro}m roughness (the roughness of the as-received tubing was {approx}0.4 {micro}m) delayed breakaway oxidation. Polishing also removed surface impurities. For polished samples oxidized at 1100 C, no significant nodular oxidation appeared up to 1000 s. For polished samples oxidized at 1000 C, hydrogen uptake >100 wppm was delayed from {approx}300 s to >900 s. Weight-gain coefficients were determined for pre-breakaway oxidation of polished-only and machined-and-polished E110 tubing samples: 0.162 (mg/cm{sup 2})/s{sup 0.5} at 1000 C and 0.613 (mg/cm{sup 2})/s{sup 0.5} at 1100 C.},
doi = {10.1016/j.jnucmat.2009.06.029},
journal = {J. Nucl. Mater.},
number = 3 ; Sep. 15, 2009,
volume = 393,
place = {United States},
year = {Tue Sep 15 00:00:00 EDT 2009},
month = {Tue Sep 15 00:00:00 EDT 2009}
}