Joint Institute of Science and Technology SPbSPU

Research and Innovation Institute of Materials and Technologies

Laboratory “Liquid Phase Metallurgical Technologies”

Areas of scientific activity:

• Hot physical modeling of processes of phase and structure formation in liquid and solidifying alloys;
• Development of techniques for manufacture of steel grades, and special steel and alloys;
• Development of methods for control of phase/structure formation in manufacture of skelp steel grades on the basis of hot physical modeling of the processes forming slab cast structure and its evolution in the subsequent thermal and mechanical treatment.

Laboratory’s main partners:

• OAO Severstal
• FSUE Central Research Institute of Structural Materials “Prometey”
• OAO CNIIM
• United Machine-building Plants “Spetsstal” (OMZ-Special Steels, LLC)
• OAO Petrostal
• State Research and Production Enterprise ”Splav”
• OOO Robert Bosсh

Laboratory’s equipment:

Scientific research and experiments carried out:

• Control over the processes of formation of nonmetallic inclusions in manufacture of convertor steel (jointly with OAO Severstal)
• Preparation of recommendations with regard to the technique for melting and rolling of high-strength steel sheets and strip for the pipes with a strength category of up to Х100 (jointly with FSUE Central Research Institute of Structural Materials “Prometey”)
• Development of high-strength composite alloyed steel and a technique for manufacture of pipe samples (jointly with State Research and Production Enterprise ”Splav”)
• Research into the impact of hard-melting alloy nanopowders (nitrides, carbides, etc.) on the improvement of mechanical and operating properties of strip and construction steel grades (jointly with OAO Severstal)
• Synthesis and treatment of magnesium and manganese silicides (jointly with OOO Robert Bosch)

Main scientific developments:

• Development of a technique for extra-furnace treatment of pipe steel grades in manufacture of high-strength rolled sheets with a yield limit at 690 Mpascal and strips of X100 category.
• Development of a system for alloying of high-strength steel for cold plastic deformation providing after hardening and tempering an ultimate strength of not less than 1,370 Mpascal, and after deformation (rolling-off) with degrees of 50 ‑60 % σ_в not less than 1670 Mpascal at relative elongation δ_s not less than 4 –6 %, impact strength КСU^–50 not less than 30 joule/cm².
• Development of a technique for modification of pipe steel grades with rare-earth metals.

Fields of implementation for the Laboratory’s development products:

Iron-and-steel works, industrial and academic scientific research institute dealing with production of pipe grade steel, and special alloys and steel.