Time filter

Source Type

Golovko V.V.,Central Scientific Research Institute of Heavy Engineering | Potapov N.V.,Eo Paton Electrical Welding Institute
Welding International | Year: 2011

Properties of the agglomerated (ceramic) fluxes, processing technique, and fields of their application are considered. © 2011 Taylor & Francis.


Pavlov V.N.,Prometei | Galyatkin S.N.,Prometei | Levedeva N.V.,Prometei | Shur N.A.,Prometei | Rabinovich V.P.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2015

The results of investigation of the reasons for the formation of cracks in welded joints in 20  K steel are presented. The nature of failure was determined by the methods of vacuum thermal etching in metallographic and fractographic studies of fracture surfaces. The intragranular nature of failure by the ‘cold cracking’ mechanism is described. © 2015 Taylor & Francis.


Khodakov V.D.,Central Scientific Research Institute of Heavy Engineering | Danilov A.I.,Central Scientific Research Institute of Heavy Engineering | Khodakov D.V.,Central Scientific Research Institute of Heavy Engineering | Praliev D.A.,Central Scientific Research Institute of Heavy Engineering | And 2 more authors.
Welding International | Year: 2014

The technology of automatic narrow-gap argon-arc welding of pipes of the main circulation pipeline Du-850 of water-water nuclear reactors is investigated and developed. Welding is carried out using automatic welding systems with Sv-10G1SN1MA welding wire. The welded joints were investigated by metallographic methods, and the mechanical properties were determined. © 2014 © 2014 Taylor & Francis.


Starchenko E.G.,Central Scientific Research Institute of Heavy Engineering | Mastenlp V.Y.,Central Scientific Research Institute of Heavy Engineering | Volobuev Y.S.,Central Scientific Research Institute of Heavy Engineering | Khodakov V.D.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2013

The results of investigations of single- and two-electrode electroslag surfacing under new ceramic fluxes are described. Technology is developed and advantages of the single- and two-electrode electroslag strip electrode surfacing in the deposition of single- or two-layer corrosion-resisting coatings on the internal surfaces of equipment are indicated. © 2013 Copyright Taylor and Francis Group, LLC.


Starchenko E.G.,Central Scientific Research Institute of Heavy Engineering | Feklistov S.I.,Central Scientific Research Institute of Heavy Engineering | Ershov A.A.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2013

To produce components of a power plant, working at temperatures of up to 750°C, investigations were carried out to develop a technology and carry out computer modelling of the method of combined argon-shielded arc and manual arc welding of experimental austenitic steels. The tests of the mechanical properties and metallographic analysis confirm the satisfactory characteristics of the strength and ductility properties of the welded joint and the absence of any susceptibility to hot cracking in welding new austenitic steels. © 2013 Copyright Taylor and Francis Group, LLC.


Rymkevich A.I.,Central Scientific Research Institute of Heavy Engineering | Potapov N.N.,Central Scientific Research Institute of Heavy Engineering | Roshchin M.B.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2012

The effect of the chemical activity of flux on the properties of deposited metal of Mn-Ni-Mo-V steels, produced by electroslag welding and electroslag remelting, is discussed. It is shown that an increase in the chemical activity of flux by increasing its silica content to 16-24% (FTs-21 flux) in the remelted metal increases the fraction of easily deformed non-metallic oxide inclusions and the number of zones with reduced hardness in the structure of the metal. This increases the elasticity properties and strain capacity of the metal in the process of relaxation of welding stresses and in the formation of the required mechanical properties of the welded joints after final heat treatment. Also, the risk of formation of reheat cracks in the electroslag welded joints is reduced. © 2012 Copyright Taylor and Francis Group, LLC.


Potapov N.N.,Central Scientific Research Institute of Heavy Engineering | Rymkevich A.I.,Central Scientific Research Institute of Heavy Engineering | Roshchin M.B.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2012

The metallurgical special features of the electroslag process using low-activity fluxes with the reduced basicity are investigated. The increase in the silica content of the fluxes-slags up to 15-25% improves the technological characteristics of the electroslag process and ensures efficient desulphurization of metal. When the silica content of the slag is increased above 25%, the oxygen content and the content of the non-metallic inclusions in the remelted metal rapidly increase. © 2012 Copyright Taylor and Francis Group, LLC.


Khodakov V.D.,Central Scientific Research Institute of Heavy Engineering | Khodakov D.V.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2016

In long-term service of dissimilar welded joints (DWJ) in sections connecting equipment and pipelines made of pearlitic and austenitic steels, corrosion damage was observed in the material associated with the intercrystalline corrosion of the metal of the type 10Kh16N24AM6, deposited with UA 395/9 electrodes. The deposited metal of the type 02Kh23N15 is characterized by high corrosion resistance, is not susceptible to hot cracking and can be recommended for the first layer of the load-carrying edges of DWJ. © 2016 Informa UK Limited, trading as Taylor & Francis Group.


Khodakov V.D.,Central Scientific Research Institute of Heavy Engineering | Khodakov D.V.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2016

The structure and mechanism of the formation of welded joints in pearlitic and austenitic steels in power engineering structures are analyzed. The results of investigations of the crystal structure of metals and metallurgical processes taking place in the welding zone are presented. Recommendations are given for improving the welding technology and welding materials, and the chemical composition of the materials used in these applications is determined more accurately. © 2016 Informa UK Limited, trading as Taylor & Francis Group.


Feklistov S.I.,Central Scientific Research Institute of Heavy Engineering | Ershov A.A.,Central Scientific Research Institute of Heavy Engineering
Welding International | Year: 2015

Investigations were carried out into the properties of sheets and forged 03Kh16N9M2 austenitic steel and the properties of welded joints in equipment working in a wide temperature range from –196 to 600°C. The determination of the mechanical properties of steel and of welded joints and also of cyclic strength characteristics shows that the properties of these steels are higher in a wide temperature range than the properties of 12Cr18Ni10Ti steel. A method was developed for welding bodies of cryogenic equipment with large thicknesses of welded joints with no need for heat treatment. © 2015, © 2015 Taylor & Francis.

Loading Central Scientific Research Institute of Heavy Engineering collaborators
Loading Central Scientific Research Institute of Heavy Engineering collaborators