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Title: Preliminary Investigation of Zircaloy-4 as a Research Reactor Cladding Material

Technical Report ·
DOI:https://doi.org/10.2172/1056014· OSTI ID:1056014

As part of a scoping study for the ATR fuel conversion project, an initial comparison of the material properties of Zircaloy-4 and Aluminum-6061 (T6 and O-temper) is performed to provide a preliminary evaluation of Zircaloy-4 for possible inclusion as a candidate cladding material for ATR fuel elements. The current fuel design for the ATR uses Aluminum 6061 (T6 and O temper) as a cladding and structural material in the fuel element and to date, no fuel failures have been reported. Based on this successful and longstanding operating history, Zircaloy-4 properties will be evaluated against the material properties for aluminum-6061. The preliminary investigation will focus on a comparison of density, oxidation rates, water chemistry requirements, mechanical properties, thermal properties, and neutronic properties.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
DOE - NA
DOE Contract Number:
DE-AC07-05ID14517
OSTI ID:
1056014
Report Number(s):
INL/EXT-12-25814
Country of Publication:
United States
Language:
English