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It is now well established that simultaneous application of acoustic energy during deformation results in lowering of stresses required for plastic deformation. This phenomenon of acoustic softening has been used in several manufacturing processes, but there is no consensus on the exact physics governing the phenomenon. To further the understanding of the process physics, in this manuscript, after-deformation...
Stress-strain relationships obtained by tensile test below room temperature for an austenitic 25Cr-19Ni steel were analyzed by using the Kocks-Mecking model to make clear the effects of temperature and strain rate on flow stress. A temperature range used here is between 77 and 296 K, a strain rate range between 10 -9 and 10 -2 s -1 and true strain below 0.2,...
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