High temperature oxidation of fuel cladding candidate materials in steam–hydrogen environments

Abstract Alternative fuel cladding materials to Zr alloys are being investigated for enhanced accident tolerance, which specifically involves oxidation resistance to steam or steam–H2 environments at ⩾1200 °C for short times. Based on a comparison of a range of commercial and model alloys, conventional austenitic steels do not have sufficient oxidation resistance with only ∼18Cr–10Ni. Higher alloyed type 310 stainless steel is protective but Ni is not a desirable alloy addition for this application. Results at 1350 °C indicated that FeCrAl alloys and CVD SiC remain oxidation resistant in steam. At 1200 °C, high (⩾25% Cr) ferritic alloys appear to be good candidates for this application. Higher pressures (up to 20.7 bar) and H2 additions appeared to have a limited effect on the oxidation behavior of the most oxidation resistant alloys, but higher pressures accelerated the maximum metal loss for less oxidation resistant steels and less metal loss was observed for type 317 L tubing in a H2–50%H2O environment at 10.3 bar compared to 100% H2O.

[1]  B. Pint.  Experimental observations in support of the dynamic-segregation theory to explain the reactive-element effect , 1996 .

[2]  P. Moseley,et al.  The microstructure of the scale formed during the high temperature oxidation of a fecralloy steel , 1984 .

[3]  R. Klueh,et al.  Development of an Oxide Dispersion Strengthened Reduced-Activation Steel for Fusion Energy , 2000 .

[4]  J. V. Cathcart,et al.  The Kinetics of Oxidation of Zircaloy‐4 in Steam at High Temperatures , 1979 .

[5]  F. Carré,et al.  Structural materials challenges for advanced reactor systems , 2009 .

[6]  P. Maziasz,et al.  The Use of Model Alloys to Develop Corrosion-Resistant Stainless Steels , 2004 .

[7]  B. Pint,et al.  Effect of Cr and Ni Contents on the Oxidation Behavior of Ferritic and Austenitic Model Alloys in Air with Water Vapor , 2004 .

[8]  R. E. Hann,et al.  Paralinear Oxidation of CVD SiC in Water Vapor , 1997 .

[9]  M. Hättestrand,et al.  High Temperature Properties of a New Powder Metallurgical FeCrAl Alloy , 2004 .

[10]  L. Stratil,et al.  Microstructure and impact properties of ferritic ODS ODM401 (14%Cr-ODS of MA957 type) , 2011 .

[11]  Kurt A. Terrani,et al.  Oxidation of fuel cladding candidate materials in steam environments at high temperature and pressure , 2012 .

[12]  B. Pint.  Optimization of Reactive‐Element Additions to Improve Oxidation Performance of Alumina‐Forming Alloys , 2003 .

[13]  J. Lee,et al.  Influence of alloy composition and temperature on corrosion behavior of ODS ferritic steels , 2011 .

[14]  G. Rybicki,et al.  Effect of theθ-α-Al2O3 transformation on the oxidation behavior ofβ-NiAl + Zr , 1989 .

[15]  Donald R. Olander,et al.  Oxidation of Zircaloy by steam , 1991 .

[16]  I. Wright,et al.  A review of the oxidation behaviour of structural alloys in steam , 2010 .

[17]  H. Evans,et al.  Dependence of oxidation behaviour on silicon content of 20% Cr austenitic steels , 1989 .

[18]  Lars Hallstadius,et al.  Cladding for high performance fuel , 2012 .

[19]  P. Guiraldenq,et al.  Bulk and grain boundary diffusion of 59Fe, 51Cr, and 63Ni in austenitic stainless steel under influence of silicon content , 1978 .

[20]  M. Olsson,et al.  Alumina Scale Formation on a Powder Metallurgical FeCrAl Alloy (Kanthal APMT) at 900–1,100 °C in Dry O2 and in O2 + H2O , 2010 .

[21]  M. Harada,et al.  Alloying design of oxide dispersion strengthened ferritic steel for long life FBRs core materials , 1993 .

[22]  C. Tedmon.  The Effect of Oxide Volatilization on the Oxidation Kinetics of Cr and Fe‐Cr Alloys , 1966 .

[23]  John P. Shingledecker,et al.  Oxide dispersion-strengthened steels: A comparison of some commercial and experimental alloys , 2005 .

[24]  V. F. Urbanic,et al.  High-temperature oxidation of zircaloy-2 and zircaloy-4 in steam , 1978 .

[25]  B. Pint,et al.  Chromium Volatilization Rates from Cr2O3 Scales into Flowing Gases Containing Water Vapor , 2006 .

[26]  I. Wright,et al.  Oxidation Behavior of ODS Fe–Cr Alloys , 2005 .

[27]  E. Opila,et al.  Volatility of Common Protective Oxides in High-Temperature Water Vapor: Current Understanding and Unanswered Questions , 2004 .

[28]  J. Larpin,et al.  Water-vapor-effect on the oxidation of Fe-21.5 wt.%Cr-5.6 wt.%Al at 1000°C , 1997 .

[29]  J. Keiser,et al.  Exposure of Ceramics and Ceramic Matrix Composites in Simulated and Actual Combustor Environments , 1999 .

[30]  L. Singheiser,et al.  Practical Aspects of the Reactive Element Effect , 2001 .

[31]  B. Pieraggi.  Calculations of parabolic reaction rate constants , 1987 .

[32]  W. J. Weber,et al.  Radiation effects in SiC for nuclear structural applications , 2012 .