The effect of temperature-deformation processing in the intercritical temperature range on the structure and properties of thick sheets of low-carbon building steels

Authors

  • D. V. Laukhin Doctor of Technical Sciences, Prof., Ukraine
  • G. D. Sukhomlin Doctor of Technical Sciences, Senior Researcher, Ukraine
  • A. V. Beketov Ph. D., Assos. prof., Ukraine
  • S. V. Ivantsov Ph. D., Assos. prof., Ukraine
  • E. A. Schudro postgrad. stud., Ukraine
  • V. D. Laukhin Junior scientist., Ukraine

Keywords:

thermomechanical processing, structure, grain ferrite, hardness.

Abstract

Abstract. Purpose. The influence of hot rolling end temperature on the structure and properties of thick sheet of low carbon microalloyed steels. Methodology. The material for the study were selected low-carbon microalloyed steel 09G2S, 10H2FB and 10HSND. In the laboratory performed thermomechanical rolling of these steel rolling mill at 260 DUO studied data structure steels, ferritic grain size before and after laboratory rolling steel hardness data. Findings. Studies have shown resizing ferritic grain structure of the metal before and after laboratory prokatok and impact for your thermomechanical processing in the modes mentioned in hardness. Originality. Due to persistent polygonal substructure stable austenite formed during deformation in intercriticak range, developed substructure formation of ferrite and pearlite becomes possible to stabilize and increase the strength properties not only in steels that contain carbide elements, but also in traditional materials without additional alloying. Practical value. The study of structure formation processes and the impact of structure on mechanical properties after thermomechanical rolling in the laboratory to simulate these processes and to further offer new technological scheme of manufacturing high-hire for construction in terms of domestic steel mills.

Author Biographies

D. V. Laukhin, Doctor of Technical Sciences, Prof.

department of Material Sience and Treatment of Materials, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

G. D. Sukhomlin, Doctor of Technical Sciences, Senior Researcher

department of Material Sience and Treatment of Materials, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

A. V. Beketov, Ph. D., Assos. prof.

department of Material Sience and Treatment of Materials, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

S. V. Ivantsov, Ph. D., Assos. prof.

department of Material Sience and Treatment of Materials, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

E. A. Schudro, postgrad. stud.

department of Material Sience and Treatment of Materials, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

V. D. Laukhin, Junior scientist.

Laboratory of experimental scientific research, SHEE “Pridneprovsk State Academy of Civil Engineering and Architecture”, 24A, Chernishevskogo str., Dnipro, Ukraine

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Published

2017-03-28

Issue

Section

Proceedings in memory of Starodubov