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Characterization of Kanthal APMT and T91 oxidation at beyond design-basis accident temperatures

Journal Article · · Corrosion Science
 [1];  [2];  [3];  [3];  [1];  [2];  [4]
  1. Univ. of Iowa, Iowa City (United States). Dept. of Materials Science & Engineering
  2. Iowa State Univ., Ames, IA (United States). Dept. of Chemistry; Ames Lab., Ames, IA (United States)
  3. Brookhaven National Lab. (BNL), Upton, NY (United States). Nuclear Science & Technology Dept. (NSTD)
  4. General Electric Research Lab., Schenectady, NY (United States)

Limited information is available on the oxidation mechanism of accident tolerant claddings (ATC) Kanthal APMT and T91 at the onset of beyond design-basis accident (BDBA) conditions. In this work, we characterized the surface of these ATC alloys after steam and air exposure at 1200 °C for 2 h, defining the oxidation mechanism. Thickness and composition were analyzed with microscopy, Raman spectroscopy, and synchrotron diffraction. Our results demonstrate that APMT forms a compact and homogeneous α-Al2O3 layer when exposed to air or steam. T91 forms a heterogeneous porous layer, containing a mixture of Cr- and Fe-based oxides, whose composition changes with the exposure environment.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division; National Science Foundation (NSF)
Grant/Contract Number:
AC02-07CH11358; SC0012704; NE0008823
OSTI ID:
1633642
Alternate ID(s):
OSTI ID: 1637487
OSTI ID: 1690129
Report Number(s):
IS--J-10,245
Journal Information:
Corrosion Science, Journal Name: Corrosion Science Journal Issue: C Vol. 171; ISSN 0010-938X
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (24)

Raman microspectroscopy of some iron oxides and oxyhydroxides journal November 1997
Synchrotron X-ray and Neutron Diffraction Studies in Solid-State Chemistry journal December 1992
Oxidation kinetics of Y-doped FeCrAl-alloys in low and high pO2 gases journal January 2010
The formation of aluminum oxide scales on high-temperature alloys journal October 1992
The influence of alloying elements on the development and maintenance of protective scales journal August 1995
Alumina Scale Formation on a Powder Metallurgical FeCrAl Alloy (Kanthal APMT) at 900–1,100 °C in Dry O2 and in O2 + H2O journal September 2009
Oxidation of a Dispersion-Strengthened Powder Metallurgical FeCrAl Alloy in the Presence of O2 at 1,100 °C: The Influence of Water Vapour journal February 2015
Effect of Al and Cr Content on Air and Steam Oxidation of FeCrAl Alloys and Commercial APMT Alloy journal March 2017
Oxidation Characteristics of Two FeCrAl Alloys in Air and Steam from 800°C to 1300°C journal June 2018
A Raman study of the systems Fe3−xCrxO4 and Fe2−xCrxO3 journal March 1989
Study of thin oxidation films on iron alloys by Raman spectroscopy journal July 1989
The infrared and Raman spectra of chromium (III) oxide journal August 1968
Continuous and cyclic oxidation of T91 ferritic steel under steam journal March 2004
High temperature oxidation of Fe–Cr alloy in O2–H2–H2O atmospheres; microstructure and kinetics journal November 2003
Spalling failure of α-alumina films grown by oxidation. II. Decohesion nucleation and growth journal February 2000
High-temperature oxidation of advanced FeCrNi alloy in steam environments journal December 2017
Selection of fuel cladding material for nuclear fission reactors journal December 2011
Iron oxide surfaces journal March 2016
Structural Evolution of Corundum at High Temperatures journal January 2008
Oxide Structures Produced on Iron-Chromium Alloys by a Dissociative Mechanism journal January 1963
Steam Oxidation and Chromia Evaporation in Ultra-Supercritical Steam Boilers and Turbines journal August 2009
A review of the oxidation behaviour of structural alloys in steam journal May 2010
High-temperature oxidation of FeCrAl(Y, Pt) alloys in oxygen–water vapour journal December 2011
Effect of environment on the scale formed on oxide dispersion strengthened FeCrAl at 1050°C and 1100°C journal September 2012


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