Friction stress and recovery during high-temperature creep: interpretation of creep transients following a stress reduction
1980 ◽
Vol 371
(1745)
◽
pp. 279-294
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A model based on the concept of recovery-controlled creep is developed to describe the transient behaviour following a reduction in stress at high temperature. This leads to an explicit expression relating an incubation period of zero creep At to the initial, reduced and friction stresses. The creep transients in an experimental nickel-base alloy indicate that deformation is limited by the rate of growth of the dislocation substructure, and least squares analysis shows the experimental data to be compatible with the predictions of the model, which provides an objective method of measuring the friction stress. The results indicate unambiguously the existence of a finite friction stress.
2010 ◽
Vol 63
(2-3)
◽
pp. 313-319
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1989 ◽
Vol 80
(3)
◽
pp. 152-156
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