Experimental investigation of cold-spray Cr-coated cladding during normal and accident conditions

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F20%3A00340303" target="_blank" >RIV/68407700:21340/20:00340303 - isvavai.cz</a>

Result on the web

<a href="http://globaltopfuel.ans.org/" target="_blank" >http://globaltopfuel.ans.org/</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Experimental investigation of cold-spray Cr-coated cladding during normal and accident conditions

Original language description

This paper investigates the experimental performance of cold-spray chromium (Cr) coating on Zircaloy-4. Previously, preliminary high temperature steam (500 to 1400 oC) and quench, room-temperature burst, autoclave creep, fatigue and corrosion testing along with thermo-mechanical modelling showed Cr-coating via cold spray process is a promising accident tolerant fuel (ATF) concept. Though, some concerns regarding crack propagation and rod bowing of the coated clad were also discussed. In this study, we expand the test matrix by investigating the accelerated creep and CRUD disposition after >800 hours of testing. The results indicate that the cold-spray chromium coating is expected to have similar performance during normal operation in terms of mechanical and thermal creep and CRUD deposition when compared to Zr-4. In addition, the results of ion irradiation of chrome and high temperature ballooning/burst are reported. It was inferred from ion irradiation study that chrome irradiation-induced swelling should be small during normal operating conditions. Noticeably superior performance in terms of burst time and burst size were also observed with the coated cladding samples at high temperature when compared to Zr-4 which was opposite of the previous findings at room temperature. Single-sided steam oxidation at 1200 oC were also performed. While weight gain was found to be considerably smaller, hydrogen concentration was found to be higher in Cr coated samples compared to Zr-4. These data serve as a basis to motivate future testing and development of coated cladding models to predict the performance of this ATF concept for future commercial deployment.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Project

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Continuities

N - Vyzkumna aktivita podporovana z neverejnych zdroju

Publication year

2020

Confidentiality

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

Article name in the collection

Global/Top Fuel 2019: International Nuclear Fuel Cycle Conference/Light Water Reactor Fuel Performance Conference

ISBN

978-0-89448-771-2

ISSN

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e-ISSN

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Number of pages

10

Pages from-to

873-882

Publisher name

American Nuclear Society

Place of publication

La Grande Park, Illinois

Event location

Seattle, WA

Event date

Sep 22, 2019

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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