Abstract:
Regular features in plastic-strain macrolocalization are examined at the parabolic stage of strain hardening in the É635 and Zircaloy-2 zirconium alloys. Instability of the plastic flow is observed, which is manifested as a periodic variation of space-time distributions of local strain as revealed by means of speckle interferometry. The data obtained are discussed within the framework of a synergetic model for the plastic flow evolution at the final stage.
Citation:
T. M. Poletika, S. V. Kolosov, G. N. Narimanova, A. P. Pshenichnikov, “Plastic flow instability at the necking stage in zirconium alloys”, Prikl. Mekh. Tekh. Fiz., 47:3 (2006), 141–149; J. Appl. Mech. Tech. Phys., 47:3 (2006), 426–432