Open AccessDeformation behavior of stainless steel under uniaxial tension
Author(s) -
A. M. Nikonova,
Y V Li,
С. А. Баранникова
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1611/1/012003
Subject(s) - materials science , portevin–le chatelier effect , work hardening , dynamic strain aging , austenite , plasticity , deformation (meteorology) , uniaxial tension , elongation , austenitic stainless steel , strain rate , tension (geology) , strain hardening exponent , metallurgy , work (physics) , deformation bands , composite material , ultimate tensile strength , thermodynamics , microstructure , physics , corrosion
The present work is devoted to the study of the laws of macroscopic localization of plastic deformation of austenitic stainless steel AISI 321 at low and high temperatures. The studies of AISI 321 steel found that at the stages of linear strain hardening, the propagation velocity of the localized plastic deformation centers and the spatial period of local elongation change when test temperature increases by the exponential law. Patterns of plastic strain localization as single bands are due to the Portevin – Le Chatelier effect on jerky flow.