armi.materials.inconel800 module

Incoloy 800.

class armi.materials.inconel800.Inconel800[source]

Bases: Material

Incoloy 800/800H (UNS N08800/N08810).

propertyValidTemperature = {'thermal expansion': ((20.0, 800.0), 'C')}

Dictionary of valid temperatures over which the property models are valid in the format ‘Property Name’: ((Temperature_Lower_Limit, Temperature_Upper_Limit), Temperature_Units)

refTempK = 294.15
setDefaultMassFracs()[source]

Incoloy 800H mass fractions.

From [SM].

linearExpansionPercent(Tk=None, Tc=None)[source]

average thermal expansion dL/L. Used for computing hot dimensions.

Parameters:

  • Tk (float) – temperature in (K)

  • Tc (float) – Temperature in (C)

Return type:

%dLL(T) in m/m/K

meanCoefficientThermalExpansion(Tk=None, Tc=None)[source]

Mean coefficient of thermal expansion for Incoloy 800. Third order polynomial fit of table 5 from [SM].

Parameters:

  • Tk (float) – temperature in (K)

  • Tc (float) – Temperature in (C)

Return type:

mean coefficient of thermal expansion in m/m/C

density(Tk: float = None, Tc: float = None) → float

Return density that preserves mass when thermally expanded in 3D (in g/cm^3).

Notes

Since refDens is specified at the material-dep reference case, we don’t need to specify the reference temperature. It is already consistent with linearExpansion Percent. - p*(dp/p(T) + 1) =p*( p + dp(T) )/p = p + dp(T) = p(T) - dp/p = (1-(1 + dL/L)**3)/(1 + dL/L)**3