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Meeting Materials Science & Technology 2019
Symposium Thermomechanical Processing in Shaping and Forming of Steels
Presentation Title Formation of Polygonized Structures and Nuclear Recrystallization under Controlled Rolling of Low-carbon Steels
Author(s) Sergey Shejko, Valerii Mishchenko, George Sukhomlin
On-Site Speaker (Planned) Sergey Shejko
Abstract Scope Electron microscopy (transmission microscopy TEM) methods studied the effect of variable factors (ε, τ, t), as well as the relative amount of special low-energy boundaries in the ferritic and martensitic components of low-carbon steels in the concept of CSL (Coincidence Site Lattice). The optimal performances of thermoplastic deformation have been established, as a result of which the polygonization process takes place - a change in the configuration of grain boundaries, the formation of low-angle polygonal borders, interaction between themselves and high-angle, and special boundaries. The developed heat treatment performance provided an increase in impact hardness, both of the base metal and the heat-affected zone of low-carbon steels such as steel 10ХФТБч (Standard of Ukraine). This is due to the appearance of special boundaries – twin, sigma 5 and others, as well as the occurrence of polygonization.


Characterizing Longitudinal Defects in Steel Continuous Casting
Deformation Behavior of Non-metallic Inclusions during the Hot Torsion Process of Carbon Steel
Effect of Thermomechanical Strategy and Mo-Nb-B Alloying Additions on High Strength Medium Carbon Q/Q&T Steels
Effect of Vanadium and Aluminum Grain Refining Treatment on Steel Machinability
Effects of Thermomechanical Processing, Microalloying, and Rapid Heat Treatment on Microstructural Development, Carbonitride Precipitation, and Mechanical Behavior of Medium Carbon Steels
Evolution of Inclusions in Solid Steel during Reheating Process
Ferrite and Bainite Transformation from Austenite Grain Boundary in 0.6 wt.% C Steel
Formation of Polygonized Structures and Nuclear Recrystallization under Controlled Rolling of Low-carbon Steels
Some Aspects of Industrial Thermomechanical Processing of Steels
Yield Strength Improvement in 3rd Generation AHSS Through Warm Rolling

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