Autowave process of the localized plastic deformation of high-chromium steel saturated with hydrogen

All-Russian conference on Nonlinear Waves: Theory and New Applications

Bochkareva, A.V.^1,2 ; Barannikova, S.A.^1,3,4 ; Li, Yu.V.^1 ; Lunev, A.G.^1,2 ; Zuev, L.B.^1,3

Institute of Strength Physics and Materials Science, SB RAS, Tomsk

634055, Russia^1

National Research Tomsk Polytechnic University, Tomsk

634050, Russia^2

National Research Tomsk State University, Tomsk

634050, Russia^3

Tomsk State University of Architecture and Building, Tomsk

634003, Russia^4

关键词: Comparative studies;    Deformation behavior;    High-chromium steel;    High-temperature tempering;    Linear hardening;    Localized plastic deformation;    Speckle Photography;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/722/1/012024/pdf
DOI  :  10.1088/1742-6596/722/1/012024

来源: IOP

【 摘 要 】

The deformation behavior of high-chromium stainless steel of sorbitic structure upon high-temperature tempering and of electrically saturated with hydrogen in the electrochemical cell during 12 hours is investigated. The stress-strain curves for each state were obtained. From the stress-strain curves, one can conclude that hydrogen markedly reduces the elongation to the fracture of specimen. Using double-exposed speckle photography method it was found that the plastic flow of the material is of a localized character. The pattern distribution of localized plastic flow domains at the linear hardening stage was investigated. Comparative study of autowave parameters was carried out for the tempered steel as well as the electrically saturated with hydrogen steel.