Open AccessВлияние микротрещин на коэффициент Пуассона при пластическом деформировании аустенитной стали
Author(s) -
С. В. Кириков,
В. В. Мишакин,
В.А. Клюшников
Publication year - 2022
Publication title -
žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-748X
pISSN - 0044-4642
DOI - 10.21883/jtf.2022.03.52135.277-21
Subject(s) - materials science , poisson distribution , poisson's ratio , deformation (meteorology) , martensite , strain (injury) , composite material , mechanics , thermodynamics , mathematics , microstructure , physics , statistics , medicine
We researched the influence of damage accumulation on the Poisson's ratio measured by echo-pulse acoustic method during plastic deformation of 12Kh18N10T steel. On the basis of the obtained experimental data we calculated the partial contributions to the change in the Poisson's ratio of damage accumulation and separation of the strain induced martensite phase.The characteristics of stable cracks forming near strain martensite particles at small degrees of plastic strain have been analyzed by computer simulation. The theoretical dependence of the change in the Poisson's ratio due to crack formation during plastic deformation has been constructed. A good agreement between the experimental data and theoretical calculations has been obtained.