Electrical Resistivity: Co-Ni, Co-Fe, Co-Fe-Ni, and Higher Order Systems
Using the TCS Ni-based Superalloys Database (TCNI), you can calculate the quantities of a phase φ with the variable ELRS(φ) or a system (i.e. alloy) with ELRS. You can also calculate the derived quantity, i.e. electrical conductivity (ELCD) in a similar way.
The database includes electrical resistivity starting with version 11 (TCNI11).
The examples are a sample of calculated electrical resistivity for binary, ternary, and higher-order systems important to Ni-base alloys, compared to values from the literature.
Co-Ni
The electrical resistivity of the Co-Ni FCC solution for varying composition and temperature is compared with experimental data from the literature.
Figure 1: Calculated electrical resistivity for Co25Ni75, CoNi, and Co75Ni25 compared with experimental data [1979Ben].
Co-Fe
The calculated electrical resistivity for FCC-Co with up to 8 at% Fe dissolved, compared with experimental data from the literature. Since data is only available for a limited composition range, an approximate fit is deemed good enough with a relatively simple model.
Figure 2: Calculated electrical resistivity of Co95Fe5 and Co92Fe8 alloys, compared with experimental data [1979Ben].
Co-Fe-Ni
Figure 3: Calculated electrical resistivity of equiatomic Co-Fe-Ni compared with experimental data [2016Lee].
Parity of Electrical Resistivity of Selected Systems
Figure 4: Parity plot showing calculated vs experimental electrical resistivity of binaries and higher order systems.
References
[1979Ben] W. Bendick, H. H. Ettwig, W. Pepperhoff, Thermally excited electron transitions in FCC iron alloys. J. Magn. Magn. Mater. 10, 214–216 (1979).
[2016Lee] J. I. Lee, H. S. Oh, E. S. Park, Manipulation of σ y /κ ratio in single phase FCC solid-solutions. Appl. Phys. Lett. 109, 061906 (2016).