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Title: Development and property evaluation of nuclear grade wrought FeCrAl fuel cladding for light water reactors

Journal Article · · Journal of Nuclear Materials

Development of nuclear grade, iron-based wrought FeCrAl alloys has been initiated for light water reactor (LWR) fuel cladding to serve as a substitute for zirconium-based alloys with enhanced accident tolerance. Ferritic alloys with sufficient chromium and aluminum additions can exhibit significantly improved oxidation kinetics in high-temperature steam environments when compared to zirconium-based alloys. In the first phase, a set of model FeCrAl alloys containing 10–20Cr, 3–5Al, and 0–0.12Y in weight percent, were prepared by conventional arc-melting and hot-working processes to explore the effect of composition on the properties of FeCrAlY alloys. It was found that the tensile properties were insensitive to the alloy compositions studied; however, the steam oxidation resistance strongly depended on both the chromium and the aluminum contents. The second phase development focused on strengthening Fe-13Cr-5Al with minor alloying additions of molybdenum, niobium, and silicon. Combined with an optimized thermo-mechanical treatment, a thermally stable microstructure was produced with improved tensile properties at temperatures up to 741°C.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Organization:
USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5); USDOE Office of Nuclear Energy (NE), Nuclear Fuel Cycle and Supply Chain; USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1324043
Alternate ID(s):
OSTI ID: 1459743
Journal Information:
Journal of Nuclear Materials, Vol. 467, Issue P2; ISSN 0022-3115
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 249 works
Citation information provided by
Web of Science

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Oxidation behavior of RF magnetron sputtered Cr–SiC–Cr composites coating on zircaloy fuel cladding journal July 2019
Uranium nitride-silicide advanced nuclear fuel: higher efficiency and greater safety journal October 2018
Feasibility assessment of the alumina‐forming duplex stainless steels as accident tolerant fuel cladding materials for light water reactors journal December 2019
Oxidation Characteristics of Two FeCrAl Alloys in Air and Steam from 800°C to 1300°C journal June 2018
Reactive Element Effects in High-Temperature Alloys Disentangled journal November 2019
Theoretical and experimental analysis of selective oxidation of Fe–3Al–6Cr alloy with Zn vapor journal September 2019
The Preparation and Microstructure of Nanocrystal 3C-SiC/ZrO2 Bilayer Films journal November 2017