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Title: Material selection for accident tolerant fuel cladding

Abstract

Alternative cladding materials are being investigated for accident tolerance, which can be defined as >100X improvement (compared to current Zr-based alloys) in oxidation resistance in steam environments at ≥1200°C for short (≤4 h) times. After reviewing a wide range of candidates, current steam oxidation testing is being conducted on Mo, MAX phases and FeCrAl alloys. Recently reported low mass losses for Mo in steam at 800°C could not be reproduced. Both FeCrAl and MAX phase Ti2AlC form a protective alumina scale in steam. Therefore, commercial Ti2AlC that is not single phase, formed a much thicker oxide at 1200°C in steam and significant TiO2, and therefore may be challenging to use as a cladding or a coating. Alloy development for FeCrAl is seeking to maintain its steam oxidation resistance to 1475°C, while reducing its Cr content to minimize susceptibility to irradiation assisted Cr-rich α’ formation. The composition effects and critical limits to retaining protective scale formation at >1400°C are still being evaluated.

Authors:
 [1];  [1];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Nuclear Energy (NE), Fuel Cycle Technologies (NE-5)
OSTI Identifier:
1155053
Report Number(s):
M3FT-14OR0202361
Journal ID: ISSN 2196-2936; TRN: US1600460
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. E, Materials for Energy Systems
Additional Journal Information:
Journal Volume: 2; Journal Issue: 3; Journal ID: ISSN 2196-2936
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; accident tolerant LWR Fuel cladding; FeCrAl; Mo; Ti2AlC; Al2O3; high temperature steam oxidation resistance; LOCA; MAX phase

Citation Formats

Pint, B. A., Terrani, K. A., Yamamoto, Y., and Snead, L. L. Material selection for accident tolerant fuel cladding. United States: N. p., 2015. Web. doi:10.1007/s40553-015-0056-7.
Pint, B. A., Terrani, K. A., Yamamoto, Y., & Snead, L. L. Material selection for accident tolerant fuel cladding. United States. https://doi.org/10.1007/s40553-015-0056-7
Pint, B. A., Terrani, K. A., Yamamoto, Y., and Snead, L. L. Mon . "Material selection for accident tolerant fuel cladding". United States. https://doi.org/10.1007/s40553-015-0056-7. https://www.osti.gov/servlets/purl/1155053.
@article{osti_1155053,
title = {Material selection for accident tolerant fuel cladding},
author = {Pint, B. A. and Terrani, K. A. and Yamamoto, Y. and Snead, L. L.},
abstractNote = {Alternative cladding materials are being investigated for accident tolerance, which can be defined as >100X improvement (compared to current Zr-based alloys) in oxidation resistance in steam environments at ≥1200°C for short (≤4 h) times. After reviewing a wide range of candidates, current steam oxidation testing is being conducted on Mo, MAX phases and FeCrAl alloys. Recently reported low mass losses for Mo in steam at 800°C could not be reproduced. Both FeCrAl and MAX phase Ti2AlC form a protective alumina scale in steam. Therefore, commercial Ti2AlC that is not single phase, formed a much thicker oxide at 1200°C in steam and significant TiO2, and therefore may be challenging to use as a cladding or a coating. Alloy development for FeCrAl is seeking to maintain its steam oxidation resistance to 1475°C, while reducing its Cr content to minimize susceptibility to irradiation assisted Cr-rich α’ formation. The composition effects and critical limits to retaining protective scale formation at >1400°C are still being evaluated.},
doi = {10.1007/s40553-015-0056-7},
journal = {Metallurgical and Materials Transactions. E, Materials for Energy Systems},
number = 3,
volume = 2,
place = {United States},
year = {Mon Sep 14 00:00:00 EDT 2015},
month = {Mon Sep 14 00:00:00 EDT 2015}
}

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