On the deformation behavior of bi-metal via digital image correlation On the deformation behavior of bi-metal via digital image correlation
1National Research Tomsk State University, 36 Lenin Ave, Tomsk, 634050, Russia
2Institute of Strength Physics and Materials Science, SB RAS, 2/4, pr. Akademicheskii, Tomsk, 634055, Russia
Adv. Mater. Lett., 2018, 9 (1), pp 20-24
Publication Date (Web): May 15, 2018
Copyright © IAAM-VBRI Press
The aim of this contribution was to study the localization of the plastic deformation of bi-metal based on a low-carbon steel A 283 Grade C and austenitic stainless steel 301 AISI. The images of the localized zone plastic deformation upon the uniaxial tension have been obtained with using digital image correlation method (DIC). The stress-strain curves are found to show all the plastic flow stages: yield plateau, linear and parabolic work hardening stages and the prefracture stage would occur for the respective values of the exponent from the Ludwik-Holomon equation. The main parameters of plastic flow localization at various stages of the deformation hardening have been determined in bi-metal.
Bi-metal, localization of the plastic deformation, DIC, plastic flow, auto waves.