Contribution to the study of the pseudobinary Zr1Nb-O phase diagram and its application to numerical modeling of the high-temperature steam oxidation of Zr1Nb fuel cladding

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46356088%3A_____%2F15%3A%230001735" target="_blank" >RIV/46356088:_____/15:#0001735 - isvavai.cz</a>

Alternative codes found

RIV/60193247:_____/13:UJP1614B RIV/68407700:21340/15:00225333 RIV/67985882:_____/15:00473300

Result on the web

<a href="http://dx.doi.org/10.1520/STP154320120162" target="_blank" >http://dx.doi.org/10.1520/STP154320120162</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1520/STP154320120162" target="_blank" >10.1520/STP154320120162</a>

Result language

angličtina

Original language name

Contribution to the study of the pseudobinary Zr1Nb-O phase diagram and its application to numerical modeling of the high-temperature steam oxidation of Zr1Nb fuel cladding

Original language description

The pseudobinary Zr1Nb-O phase diagram was recently estimated at the Czech research institute UJP using a new experimental procedure. It is based on the oxygen distribution measurement inside fuel claddings previously exposed to high-temperature steam environments, assuming equilibrium conditions being fulfilled at the phase boundaries. The experimental results agreed satisfactorily with the CALPHAD approach, and a further experimental program followed to affirm the phase diagram. This paper is concerned with additional measurements of the oxygen concentrations using wavelength-dispersive spectrometry, secondary ion mass spectrometry, and inert gas fusion techniques and examination of the microstructure in the Zr1Nb cladding wall after high-temperature oxidation. The main goal was to check the validity of the recently proposed Zr1Nb-0 phase diagram, or to refine it. The new results of the oxygen concentration measurements confirmed the phase diagram. After that, a new diffusion model, the Jakub Krejci oxidation model, was created using the Zr1Nb-0 phase diagram describing the double-sided high-temperature oxidation of the Zr1Nb fuel cladding including the (α + β)-Zr layer. The numerical calculations were compared to the experimental results with satisfactory agreement. It could be concluded that the proposed experimental procedure provided a good estimation of the Zr1Nb-O phase diagram. Moreover, it can be used for alloys containing a greater amount of hydrogen. The Zr1Nb-O phase diagram may be applicable for oxygen diffusion models predicting the oxidation behavior of Zr1Nb fuel claddings upon high-temperature oxidation.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JF - Nuclear energy

OECD FORD branch

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Project

<a href="/en/project/TA02011025" target="_blank" >TA02011025: Creep and oxidation properties of E110 claddings under LOCA temperature transient</a><br>

Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

ASTM Special Technical Publication, STP 1543; 17th International Symposium on Zirconium in the Nuclear Industry

ISBN

9780803175297

ISSN

0066-0558

e-ISSN

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Number of pages

35

Pages from-to

897-931

Publisher name

ASTM International

Place of publication

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Event location

Hyderabad, Andhra Pradesh, India

Event date

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Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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