Structure of carbon steel under plastic deformation

Open School-Conference of NIS Countries Ultrafine Grained and Nanostructured Materials

Shlyakhova, G.V.^1,2 ; Zuev, L.B.^1,3 ; Bochkareva, A.V.^1

Institute of Strength Physics and Materials Science, Siberian Branch, Russian Academy of Sciences, 3/4 Akademichesky ave., Tomsk

634055, Russia^1

Seversk Technological Institute, MEPhI National Research Nuclear University, 65 Kommunistichesky ave., Seversk

636036, Russia^2

Tomsk State University, 36 Lenin ave., Tomsk

634050, Russia^3

关键词: Fatigue strength;    Metallographic structure;    Microvolumes;    Plastic flow localization;    Severe plastic deformations;    Steel damages;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/447/1/012064/pdf
DOI  :  10.1088/1757-899X/447/1/012064

来源: IOP

【 摘 要 】

Results of studies on the structure of carbon steel 1045 under severe plastic deformation are presented. The atomic force microscopy method was used to estimate the metallographic structure of steel damage after cyclic impact. It was found that the plastic flow localization process occurs in narrow micro-volumes. During the process of cyclic loading, fatigue strength increases, while plastic deformation decreases, and vice versa.