FeCrAl Oxidation and Corrosion

This class computes the oxide mass gain and oxide scale thickness for the C35M FeCrAl alloy.

Description

The material FeCrAlOxidation models oxidation and corrosion of FeCrAl cladding. Experimental tests of various FeCrAl alloys were completed by Terrani et al. (2016) at normal reactor operating temperatures in PWR and BWR water conditions. Both hydrogenated BWR and normal BWR water chemistry was investigated. Of interest for the Bison model is the PWR and BWR-NWC oxidation cases of the FeCrAl alloy with the closest composition to that of C35M. The alloy from Terrani et al. (2016) used in the FeCrAlOxidation model has an alloying composition of Fe-13Cr-4Al.

The oxide mass gain is calculated by: (1) where is the parabolic rate constant in units of mg cm h and is the time in hours. The parabolic rate constant depends upon whether the reactor is PWR or BWR. For PWR, k = 3.96 10 and for BWR, k = 4.51 10 To be consistent with Bison's SI units the value of is multiplied by a conversion factor to change the units to kg m s. Once the mass gain is known in SI units the oxide thickness is calculated by: (2) where is the density of the oxygen in the chromite oxide layer that is formed, and x is the oxide thickness in meters. The density of oxygen in the chromite layer is taken as 1440kg m (Terrani et al., 2016).

Example Input Syntax


[./oxidation]
  type = FeCrAlOxidation
  reactor_type = BWR
  boundary = 3
[../]
(test/tests/fecral/corrosion/corrosion_test_fecral_bwr.i)

Input Parameters

  • oxide_density1440Density of the chromite oxide layer

    Default:1440

    C++ Type:double

    Description:Density of the chromite oxide layer

  • oxide_scale_factor1Scaling factor for oxide thickness

    Default:1

    C++ Type:double

    Description:Scaling factor for oxide thickness

  • computeTrueWhen false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

    Default:True

    C++ Type:bool

    Description:When false, MOOSE will not call compute methods on this material. The user must call computeProperties() after retrieving the Material via MaterialPropertyInterface::getMaterial(). Non-computed Materials are not sorted for dependencies.

  • boundaryThe list of boundary IDs from the mesh where this boundary condition applies

    C++ Type:std::vector

    Description:The list of boundary IDs from the mesh where this boundary condition applies

  • reactor_typePWRThe reactor type being simulated, either PWR or BWR. Default is PWR.

    Default:PWR

    C++ Type:MooseEnum

    Description:The reactor type being simulated, either PWR or BWR. Default is PWR.

  • blockThe list of block ids (SubdomainID) that this object will be applied

    C++ Type:std::vector

    Description:The list of block ids (SubdomainID) that this object will be applied

Optional Parameters

  • enableTrueSet the enabled status of the MooseObject.

    Default:True

    C++ Type:bool

    Description:Set the enabled status of the MooseObject.

  • use_displaced_meshFalseWhether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

    Default:False

    C++ Type:bool

    Description:Whether or not this object should use the displaced mesh for computation. Note that in the case this is true but no displacements are provided in the Mesh block the undisplaced mesh will still be used.

  • control_tagsAdds user-defined labels for accessing object parameters via control logic.

    C++ Type:std::vector

    Description:Adds user-defined labels for accessing object parameters via control logic.

  • seed0The seed for the master random number generator

    Default:0

    C++ Type:unsigned int

    Description:The seed for the master random number generator

  • implicitTrueDetermines whether this object is calculated using an implicit or explicit form

    Default:True

    C++ Type:bool

    Description:Determines whether this object is calculated using an implicit or explicit form

  • constant_onNONEWhen ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeSubdomainProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

    Default:NONE

    C++ Type:MooseEnum

    Description:When ELEMENT, MOOSE will only call computeQpProperties() for the 0th quadrature point, and then copy that value to the other qps.When SUBDOMAIN, MOOSE will only call computeSubdomainProperties() for the 0th quadrature point, and then copy that value to the other qps. Evaluations on element qps will be skipped

Advanced Parameters

  • output_propertiesList of material properties, from this material, to output (outputs must also be defined to an output type)

    C++ Type:std::vector

    Description:List of material properties, from this material, to output (outputs must also be defined to an output type)

  • outputsnone Vector of output names were you would like to restrict the output of variables(s) associated with this object

    Default:none

    C++ Type:std::vector

    Description:Vector of output names were you would like to restrict the output of variables(s) associated with this object

Outputs Parameters

Input Files

References

  1. K.A. Terrani, B.A. Pint, Y.-J. Kim, K.A. Unocic, Y. Yang, C.M. Silva, H.M. Meyer III, and R.B. Rebak. Uniform corrosion of fecral alloys in lwr coolant environments. Journal of Nuclear Materials, 479:36–47, 2016.[BibTeX]