Abstract
The results of low-temperature and intermediate-temperature specific heat measurements on stainless steel 310S (two heat treatment conditions) and Inconel X750 (four melting practice/heat treatment combinations) were presented and discussed at the 1975 International Cryogenic Materials Conference (ICMC) [1]. In a continuation of that work, measurements have been made on 10 more samples, consisting of Inconel X750 (HIP), Inconel 706, Kromarc 58, and Nitronic 33, in various metallurgical conditions.
Supported by the Advanced Research Projects Agency, Contract No. 2569, under the direction of the Cryogenics Division, National Bureau of Standards, Boulder, Colorado.
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Abbreviations
- A:
-
magnetic cluster spécifie heat
- C lattice, T :
-
3R · DF(x T ) = 24.942 DF(x T ) J/mole-deg
- C P :
-
heat capacity at constant-pressure
- C υ :
-
heat capacity at constant-volume
- DF(x T ):
-
Debye function at temperature T, with x T = θ D,T /T
- i:
-
current
- M:
-
molar weight
- n(E F ):
-
the Fermi density of states
- Q:
-
heat energy
- R:
-
resistance
- t:
-
time
- T:
-
temperature
- V:
-
molar volume
- w i :
-
atomic weight of an alloy component
- X i :
-
weight percent of an alloy component
- x T :
-
reduced temperature
- αυ :
-
volume expansion coefficient
- β:
-
lattice specific heat coefficient
- γ:
-
electronic specific heat coefficient
- θ D :
-
Debye temperature
- Χ:
-
isothermal compressibility
References
E. W. Collings, F. J. Jelinek, J. C. Ho, and M. P. Mathur, in Advances in Cryogenic Engineering, Vol. 22, Plenum Press, New York (1977), p. 159.
J. M. Wells and M. W. Hagadorn, “Evaluation of Nitronic 33 Stainless Steel for TFTR Device Applications,” Report 75-8C3-WETWO-R1, Westinghouse Research Laboratory, Pittsburgh, Pennsylvania (1975).
J. M. Wells, R. Kossowsky, W. A. Logsdon, and M. R. Daniel, in “Materials Research for Superconducting Machinery—III,” Report 75-9D4-CRYMT-R1, Westinghouse Research Laboratory, Pittsburgh, Pennsylvania (1975).
G. G. Lessmann, W. A. Logsdon, R. Kossowski, M. P. Mathur, and J. M. Wells, in “Materials Research for Superconducting Machinery—I,” Report 74-9D4-CRYMT-R1, Westinghouse Research Laboratory, Pittsburgh, Pennsylvania (1974).
L. Finegold, in Techniques of Metals Research, Vol. VI (E. Passaglia, ed.), John Wiley and Sons, New York (1972, p. 263.
D. L. Martin, L. L. T. Bradley, W. J. Cazemier, and R. L. Snowdon, Rev. Sci. Instrum. 44:675 (1973).
“SPSS—Statistical Package for the Social Sciences,” Version 6.00, Vogelback Computing Center, Northwestern University, Evanston, Illinois (1975).
E. S. R. Gopal, Specific Heats at Low Temperatures, Plenum Press, New York (1966).
H. M. Ledbetter and E. W. Collings, “Magnetically Induced Elastic Constant Anomaly in Nitronic 33 Stainless Steel,” in preparation.
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Collings, E.W., Smith, R.D. (1978). Specific Heats of Some Cryogenic Structural Materials I—Fe-Ni-Base Alloys. In: Timmerhaus, K.D., Reed, R.P., Clark, A.F. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 24. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9853-0_21
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DOI: https://doi.org/10.1007/978-1-4613-9853-0_21
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