The Elastic Behaviour of Ni-Co Alloys
- 1 January 1970
- journal article
- research article
- Published by Wiley in Physica Status Solidi (b)
- Vol. 37 (2) , 523-534
- https://doi.org/10.1002/pssb.19700370203
Abstract
The adiabatic, elastic stiffnesses of five f.c.c. Ni—Co alloys in the range from 10 to 62% Co were determined by the ultrasonic pulse‐echo technique at temperatures between 77 and 300 °K. As Co is added to Ni the bulk modulus increases linearly while (C11 − C12)/2 and C44 decrease and increase, respectively. The alloy stiffnesses were extrapolated to 100% Co to yield the following estimates for the stiffnesses of f.c.c. Co at room temperature: B = 1.89, (C11 − C12)/2 = 0.38, C44 = 1.33 (dynes/cm2 × 1012). Debye temperatures calculated from the extrapolated 0 °K stiffnesses indicate that the high temperature instability of h.c.p. Co is due to the more favorable vibrational entropy of f.c.c. structure.Keywords
This publication has 32 references indexed in Scilit:
- Thermal expansion of magnetic metals at low temperaturesProceedings of the Physical Society, 1965
- The low temperature specific heats of some pure metals (Cu, Ag, Pt, Al, Ni, Fe, Co)Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1965
- Stacking fault energies of Ni–Co–Cr alloysPhilosophical Magazine, 1964
- Direct measurements of stacking-fault energies from observations of dislocation nodesPhilosophical Magazine, 1961
- Stacking faults in iron–manganese and cobalt–nickelActa Crystallographica, 1960
- The Electronic Specific Heats of Some Nickel-Cobalt AlloysProceedings of the Physical Society, 1959
- Components of the Thermodynamic Functions of IronPhysical Review B, 1956
- Ultrasonic Attenuation in Magnetic Single CrystalsReviews of Modern Physics, 1953
- The Elastic Behaviour of a Crystalline AggregateProceedings of the Physical Society. Section A, 1952
- A Phenomenological Derivation of the First- and Second-Order Magnetostriction and Morphic Effects for a Nickel CrystalPhysical Review B, 1951