Effect of Torsional Oscillations and Aging Time on the Steady State creep Characteristics of Cu-2 wt% Be-0.3 wt% Co alloy | ||||
| Egyptian Journal of Solids | ||||
| Editorial, Volume 37, Issue 1, 2014, Page 59-72 PDF (607.73 K) | ||||
| DOI: 10.21608/ejs.2014.148367 | ||||
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| Abstract | ||||
| In the present study, the effect of torsional oscillations of low frequencies on the creep behavior of pre-aged Cu–Be–Co alloy has been studied. After solution heat treatment at 1073 K for 2h, samples were rapidly quenched into iced water. The quenched samples were immediately aged at 593 K for various periods (ta = ½, 1, 2, 6, 40 h). The influence of torsional oscillations of increasing frequencies (0.90–5.30 Hz) on the steady state creep behavior was systematically examined at different testing temperatures (363 to 453 K). The experimental results of the investigation demonstrate that the steady state strain rate, έst, has been enhanced with increasing the frequency of torsional oscillations. The value of activation energy is consistent with that quoted for dislocation intersection mechanism. | ||||
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