Evolution of Macro-Scale Plastic Flow Localization of Tri-Layered Stainless Steel - Low Carbon Steel - Stainless Steel Metal with Digital Image Correlation Method

Abstract:

Evolution of localized plastic deformation in tri-layered metal material casting consistng of the working part (layer) from austenitic stainless steel and bearing part from low-carbon steel was investigated. The pictures of localization of the plastic flow during the process of uniaxial tension were obtained by means of the digital image correlation method (DIC). Using optical microscopy methods, the changes in the fracture surface were investigated. The deformation diagrams were examined for deformed samples of tri-layered metal. These were found to show all the plastic flow stages: the linear, parabolic and pre-failure stages would occur for the respective values of the exponent n from the Lüdwik-Holomon equation. The analysis of the plastic flow stages and localized plastic deformation parameters was performed.

• Periodical: Materials Science Forum (Volume 870)
• Pages: 60-65
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.870.60
• Online since: September 2016
• Authors: Svetlana A. Barannikova*, L.B. Zuev, A.V. Bochkareva, A.G. Lunev, Julia Li, Galina Shlyakhova
• Keywords: Digital Image Correlation Method (DIC), Localized Plastic Flow, Tri-Layered Metal, Uniaxial Tension

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