# 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.
"""TZM.
The data in this file exists for testing and demonstration purposes only. Developers of ARMI applications can refer to
this file for a fully worked example of an ARMI material. And this material has proven useful for testing. The data
contained in this file should not be used in production simulations.
"""
from numpy import interp
from armi.materials.material import Material
from armi.utils.units import getTc
[docs]
class TZM(Material):
propertyValidTemperature = {"linear expansion percent": ((21.11, 1382.22), "C")}
references = {
"linear expansion percent": "Report on the Mechanical and Thermal Properties of Tungsten \
and TZM Sheet Produced in the Refractory Metal Sheet Rolling Program, Part 1 to Bureau \
of Naval Weapons Contract No. N600(19)-59530, Southern Research Institute"
}
temperatureC = [
21.11,
456.11,
574.44,
702.22,
840.56,
846.11,
948.89,
1023.89,
1146.11,
1287.78,
1382.22,
]
percentThermalExpansion = [
0,
1.60e-01,
2.03e-01,
2.53e-01,
3.03e-01,
3.03e-01,
3.42e-01,
3.66e-01,
4.21e-01,
4.68e-01,
5.04e-01,
]
def __init__(self):
Material.__init__(self)
self.refDens = 10.16
[docs]
def setDefaultMassFracs(self):
self.setMassFrac("C", 2.50749e-05)
self.setMassFrac("TI", 0.002502504)
self.setMassFrac("ZR", 0.000761199)
self.setMassFrac("MO", 0.996711222)
[docs]
def linearExpansionPercent(self, Tk=None, Tc=None):
"""
Return linear expansion in %dL/L from interpolation of tabular data.
This function is used to expand a material from its reference temperature (21C)
to a particular hot temperature.
Parameters
----------
Tk : float
temperature in K
Tc : float
temperature in C
Source: Report on the Mechanical and Thermal Properties of Tungsten and TZM Sheet Produced
in the Refractory Metal Sheet Rolling Program, Part 1 to Bureau of Naval Weapons
Contract No. N600(19)-59530, 1966 Southern Research Institute.
See Table viii-b, Appendix B, page 181.
"""
Tc = getTc(Tc, Tk)
self.checkPropertyTempRange("linear expansion percent", Tc)
return interp(Tc, self.temperatureC, self.percentThermalExpansion)