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Gorynin V.I.,Central Research Institute of Structural Materials Prometey CRISM Prometey | Kondrat'ev S.Yu.,Saint Petersburg State Polytechnic University | Olenin M.I.,Central Research Institute of Structural Materials Prometey CRISM Prometey
Metal Science and Heat Treatment | Year: 2014

Transformation of the carbide phase in the structure of heat-refined pearlitic and martensitic steels is studied at various temperature and time parameters of aging. The effect of the morphology of the carbides formed in the structure of the steels during aging on the mechanical properties is investigated. A method of heat treatment is suggested for raising the resistance of structural low-alloy steels to brittle fracture. © 2014 Springer Science+Business Media New York. Source


Ivanov A.Yu.,Izhorskii Pipe Plant Company | Sulyagin R.V.,Izhorskii Pipe Plant Company | Orlov V.V.,Central Research Institute of Structural Materials Prometey CRISM Prometey | Kruglova A.A.,Central Research Institute of Structural Materials Prometey CRISM Prometey
Metal Science and Heat Treatment | Year: 2012

Phase transformations in specimens of low-alloy pipe steels subjected to a treatment corresponding to the heat cycle of welding are studied using a high-speed dilatometer. Thermokinetic diagrams simulating the transformations in characteristic regions of the heat-affected zone are plotted. The results are compared to the properties of longitudinal welds of large-diameter pipes. © 2012 Springer Science + Business Media, Inc. Source


Rudskoy A.I.,Saint Petersburg State Polytechnic University | Kondrat'Ev S.Yu.,Saint Petersburg State Polytechnic University | Anastasiadi G.P.,Saint Petersburg State Polytechnic University | Oryshchenko A.S.,Central Research Institute of Structural Materials Prometey CRISM Prometey | Fuks M.D.,Central Research Institute of Structural Materials Prometey CRISM Prometey
Metal Science and Heat Treatment | Year: 2014

The results of tests and of theoretical and computational analysis are used to explain the mechanism of phase transformations in cast refractory alloy 45Kh26N33S2B2 at a temperature of 1150 °C. © 2014 Springer Science+Business Media New York. Source


Rudskoy A.I.,Saint Petersburg State University | Oryshchenko A.S.,Central Research Institute of Structural Materials Prometey CRISM Prometey | Kondrat'Ev S.Y.,Saint Petersburg State University | Anastasiadi G.P.,Saint Petersburg State University | Fuks M.D.,Central Research Institute of Structural Materials Prometey CRISM Prometey
Metal Science and Heat Treatment | Year: 2014

Changes in the structure and phase composition of cast refractory alloy 45Kh26N33S2B2 at a temperature of 1150°C and a hold of up to 100 h are studied. Considerable qualitative and quantitative changes are detected in all structural components and individual phases except for the matrix. © 2014 Springer Science + Business Media New York. Source


Kondrat'ev S.Y.,Polytechnic University of Mozambique | Anastasiadi G.P.,Polytechnic University of Mozambique | Petrov S.N.,Central Research Institute of Structural Materials Prometey CRISM Prometey | Ptashnik A.V.,Central Research Institute of Structural Materials Prometey CRISM Prometey | Svyatysheva E.V.,Central Research Institute of Structural Materials Prometey CRISM Prometey
Metal Science and Heat Treatment | Year: 2016

Scanning electron microscopy, different methods of electron diffraction, x-ray spectrum microanalysis and x-ray diffraction analysis are used to study the microstructure and crystallography of eutectic chromium carbides in HP40NbTi alloys in as-cast condition and after endurance tests for 2 – 100 h at 1150°C. The morphology and the transformations of the carbides after the high-temperature endurance tests are investigated. © 2016 Springer Science+Business Media New York Source

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