Regularities of bainitic steel deformation transition

19th International Scientific Conference on Metallurgy: Technologies, Innovation, Quality

材料科学;金属学

Gromov, V.E.^1 ; Nikitina, E.N.^2 ; Ivanov, Yu.F.^3 ; Aksenova, K.V.^1

Department of Physics N.a. Prof. V.M. Finkel, Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^1

Vice-Rector for Assets Development, Siberian State Industrial University, 42 Kirova Street, Novokuznetsk

654007, Russia^2

Institute of High Current Electronics, Siberian Brunch, Russian Academy of Sciences, 2/3 Akademichesky Ave, Tomsk

634055, Russia^3

关键词: Bainitic steel;    Carbide phase;    Compressive strain;    Degree of deformations;    Dislocation substructures;    Medium carbon bainitic steel;    Microtwinning;    Transmission electron diffraction microscopies;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/150/1/012025/pdf
DOI  :  10.1088/1757-899X/150/1/012025

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Quantitative analysis of defect and carbide subsystems evolution in medium-carbon bainitic steel subjected to compressive strain up to 36% was performed by means of transmission electron diffraction microscopy. Dislocation substructure and carbide phase parameters dependence on degree of deformation are identified, possible reasons of staging in their changes are discussed. It is suggested that the reason for bainitic steel softening at high (over 15%) degrees of deformation is activation of deformation microtwinning process.