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Barichko B.V.,Russian Research Institute of the Pipe Industry | Kosmatskii Ya.I.,Russian Research Institute of the Pipe Industry | Medvedev M.I.,Osada State Research and Design Engineering Institute of the Pipe Industry
Metallurgist | Year: 2010

A comparative analysis is made of two methods of determining the force parameters in the extrusion of tubes made of stainless steels and alloys. Results are presented from calculations of the parameters for the extrusion of tubes of alloy EI 943 on the press lines in heating-and-rolling shop No. 2 at the Volzhskii Pipe Plant. Conclusions are made as to the nature and usefulness of the two methods for calculating the force parameters of the extrusion operation. © 2010 Springer Science+Business Media, Inc. Source


Smirnov M.A.,South Ural State University | Pyshmintsev I.Yu.,Russian Research Institute of the Pipe Industry | Boryakova A.N.,Russian Research Institute of the Pipe Industry
Metallurgist | Year: 2010

The expediency of classifying the microstructure of low-carbon pipe steels is demonstrated. The main structures that should be considered in its development are investigated. © 2010 Springer Science+Business Media, Inc. Source


Smirnov M.A.,South Ural State University | Pyshmintsev I.Yu.,Russian Research Institute of the Pipe Industry | Maltseva A.N.,Russian Research Institute of the Pipe Industry | Mushina O.V.,Russian Research Institute of the Pipe Industry
Metallurgist | Year: 2012

Mechanical properties of pipe steel 07G2MFB are studied after cooling from the austenitic region at rates of 0.9-32°C/sec making it possible to obtain a ferrite-bainite structure with different ratios of structural components. It is shown that formation of a predominantly bainitic structure formed with high cooling rates provides less crack resistance with static loading than a structure in which polygonal ferrite predominates. A bainitic structure is preferable with dynamic loading. Treatment leading to formation of coarse islands of martensite-austenite (MA) component within a ferrite-bainite structure has an unfavorable effect on crack tip opening displacement CTOD, ductile-brittle transition temperature T 50, and resistance to hydrogen embrittlement ΔΨ/Ψ. © 2012 Springer Science+Business Media, Inc. Source


Barichko B.V.,Russian Research Institute of the Pipe Industry | Vydrin A.V.,Russian Research Institute of the Pipe Industry | Kosmatskii Y.I.,Russian Research Institute of the Pipe Industry | Voskhodov V.B.,Volzhskii Pipe Plant | Zubkov A.M.,Volzhskii Pipe Plant
Metallurgist | Year: 2011

The deformation resistance of steels used to make tubes from centrifugally cast semifinished products is determined by upsetting cylindrical specimens of steel 08Kh18N10T on a cam-operated plastometer. Studies performed for wide ranges of total deformation and the rate and temperature at which deformation is carried out have made it possible to refine the force parameters in the extrusion of such tubes. © 2011 Springer Science+Business Media, Inc. Source


Barichko B.V.,Russian Research Institute of the Pipe Industry | Vydrin A.V.,Russian Research Institute of the Pipe Industry | Kosmatskii Ya.I.,Russian Research Institute of the Pipe Industry
Metallurgist | Year: 2011

The deformation resistance of steels used to make tubes from centrifugally cast semifinished products is determined by upsetting cylindrical specimens of steel 08Kh18N10T on a cam-operated plastometer. Studies performed for wide ranges of total deformation and the rate and temperature at which deformation is carried out have made it possible to refine the force parameters in the extrusion of such tubes. © 2011 Springer Science+Business Media, Inc. Source

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