# Copyright 2019 TerraPower, LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Alloy-200 are wrought commercially pure nickel."""
from numpy import interp
from armi.materials.material import Material
from armi.utils.units import getTk
[docs]class Alloy200(Material):
references = {
"linearExpansion": [
"Alloy 200/201 Data Sheet http://www.jacquet.biz/JACQUET/USA/files/JCQusa-alloy-200-201.pdf"
],
"refDens": [
"Alloy 200/201 Data Sheet http://www.jacquet.biz/JACQUET/USA/files/JCQusa-alloy-200-201.pdf"
],
"referenceMaxPercentImpurites": [
"Alloy 200/201 Data Sheet http://www.jacquet.biz/JACQUET/USA/files/JCQusa-alloy-200-201.pdf"
],
}
modelConst = {
"a0": 1.21620e-5,
"a1": 8.30010e-9,
"a2": -3.94985e-12,
"TRefa": 20, # Constants for thermal expansion
}
propertyValidTemperature = {"linear expansion": ((73.15, 1273.15), "K")}
referenceMaxPercentImpurites = [
("C", 0.15),
("MN", 0.35),
("S", 0.01),
("SI", 0.35),
("CU", 0.25),
("FE", 0.40),
]
linearExpansionTableK = [
73.15,
173.15,
373.15,
473.15,
573.15,
673.15,
773.15,
873.15,
973.15,
1073.15,
1173.15,
1273.15,
]
linearExpansionTable = [
10.1e-6,
11.3e-6,
13.3e-6,
13.9e-6,
14.3e-6,
14.8e-6,
15.2e-6,
15.6e-6,
15.8e-6,
16.2e-6,
16.5e-6,
16.7e-6,
]
[docs] def linearExpansion(self, Tk=None, Tc=None):
r"""
Returns instantaneous coefficient of thermal expansion of Alloy 200.
Parameters
----------
Tk : float, optional
temperature in degrees Kelvin
Tc : float, optional
temperature in degrees Celsius
Returns
-------
linearExpansion : float
instantaneous coefficient of thermal expansion of Alloy 200 (1/C)
"""
Tk = getTk(Tc, Tk)
self.checkPropertyTempRange("linear expansion", Tk)
return interp(Tk, self.linearExpansionTableK, self.linearExpansionTable)
[docs] def setDefaultMassFracs(self):
"""
Notes
-----
It is assumed half the max composition for the impurities and the rest is Ni.
"""
nickleMassFrac = 1.0
for elementSymbol, massFrac in self.referenceMaxPercentImpurites:
assumedMassFrac = massFrac * 0.01 / 2.0
self.setMassFrac(elementSymbol, assumedMassFrac)
nickleMassFrac -= assumedMassFrac
self.setMassFrac("NI", nickleMassFrac)
self.refDens = 8.9