Abstract
Strain induced resistivity increases are examined in nominal 99.99 and 99.999% pure aluminum under conditions of cyclic strain at 20 K. Samples having residual resistivity ratios (RRR = ρ(273 K)/ρ(4.2 K)) of 1000, 2420 and 9440 were prepared by cold working and annealing bars originally 25.4 mm in diameter. Constant strain range (εr) tests were performed for 0.05%<εr<0.3% through 3000 strain cycles. Discussions of the effects of strain range, strain temperature (20 K vs. 4.2 K) work hardening and post cyclic strain annealing on the cyclic-strain induced resistivity increase are presented.
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© 1990 Plenum Press, New York
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Hartwig, K.T., Lumbis, A., Roelli, J. (1990). Cyclic-Strain Resistivity in Pure Aluminum at 20 K. In: Reed, R.P., Fickett, F.R. (eds) Advances in Cryogenic Engineering Materials . An International Cryogenic Materials Conference Publication, vol 36. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9880-6_94
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DOI: https://doi.org/10.1007/978-1-4613-9880-6_94
Publisher Name: Springer, Boston, MA
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