Influence of Thermal Cyclic Deformation and Hardening Heat Treatment on the Structure and Properties of Steel 10

Abstract:

The results of the influence of preliminary thermal cyclic deformation and subsequent hardening heat treatment on the microstructure and mechanical properties of hot-rolled sheet steel 10 are presented. It is shown that the use of preliminary thermal cyclic deformation of the steel 10 stock material results in a fine-grained structure of a hot-rolled sheet (3 mm thick) produced by an industrial technology. Deformation occurred at a temperature above A_C3 (1250 °C), with cooling to 200-300 °C during 10 cycles and the deformation ratio per cycle being 6-8 %. Such a treatment before sheet hot-rolling allows increasing the strength characteristics (tensile strength, yield strength) by almost 30 %. It has been established that the use of subsequent heat treatment (quenching, 900 °C, water and tempering 1 h, 600 °C) leads to a further increase in strength characteristics by 15-20% while maintaining a sufficient level of ductility of sheet steel.

• Periodical: Applied Mechanics and Materials (Volume 788)
• Pages: 187-193
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.788.187
• Online since: August 2015
• Authors: Aleksandr Prudnikov*, Marina Popova, Vladimir Prudnikov
• Keywords: Deformation, Hardening, Mechanical Properties, Quenching, Steel, Structure, Thermal Cyclic Deformation

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