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Nikulin I.A.,Belgorod State University | Kaibyshev R.O.,Belgorod State University | Skorobogatykh V.N.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh
Metal Science and Heat Treatment | Year: 2010

The strain behavior of austenitic steel 02Kh18N8G2FV2AB in static tensile tests is studied in a wide range of temperatures (23-740°C) and deformation rates (1.3 × 10 -5-1.3 × 10 -2 sec -1 ). The influence of the Portevin-Le Chatelier effect on the strength and ductility of steel 02Kh18N8G2FV2AB at elevated temperatures is determined. The relation between the characteristics of static strength and the creep resistance of the steel is considered. © 2010 Springer Science+Business Media, Inc. Source


Mogucheva A.A.,Belgorod State University | Nikulin I.A.,Belgorod State University | Kaibyshev R.O.,Belgorod State University | Skorobogatykh V.N.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh
Metal Science and Heat Treatment | Year: 2010

The mechanical behavior of steel 08Kh18N8D3BR in the temperature range of 500-740°C at deformation rates of 1.3 × 10 - 5-1.3 × 10 - 2 sec - 1 is studied. The conditions of manifestation of the Portevin-Le Chatelier effect in the steel are determined. The causes of the action of copper on the mechanical properties of the 18Cr-8Ni-type steel are discussed. © 2010 Springer Science+Business Media, Inc. Source


Dudko V.A.,Belgorod State University | Belyakov A.N.,Belgorod State University | Skorobogatykh V.N.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh | Shchenkova I.A.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh | Kaibyshev R.O.,Belgorod State University
Metal Science and Heat Treatment | Year: 2010

Changes in the structure of steel 10Kh9V2MFBR after creep tests are studied. It is shown that annealing causes inconsiderable changes in the structure of troostomartensite formed due to tempering in the head of a specimen. In the functional part of the specimen, on the contrary, the place of the initial troostomartensite is taken by coarse equiaxed subgrains; the density of the lattice dislocations decreases by an order of magnitude. The change in the microstructure in the process of creep causes a more than 30% decrease in the hardness of the material. © 2010 Springer Science+Business Media, Inc. Source


Kipelova A.Y.,Belgorod State University | Belyakov A.N.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh | Skorobogatykh V.N.,Belgorod State University | Shchenkova I.A.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh | Kaibyshev R.O.,Belgorod State University
Metal Science and Heat Treatment | Year: 2010

The evolution of microstructure in steel 10Kh9K3V1M1FBR during creep and in aging at 600-650°C is studied. The results are compared with data for steel P91. The role of cobalt in growth in the long-term strength is considered. © 2010 Springer Science+Business Media, Inc. Source


Borisov I.A.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh | Levitan L.M.,Central Research Institute for Machine Building Technology GNTs RF OAO NPO TsNIITMASh
Metal Science and Heat Treatment | Year: 2010

The possibilities of the use of deep-hardening steels for fabricating rolls up to 2200 mm in diameter are studied for steel 35KhN3MFA as an example. The mechanical properties of the metal are studied for cooling rates ranging within 4000-50 K/h in short-term tests at 20-550°C. The method of finite elements is used to compute the temperature field and the variation of temporary and residual stresses over the cross section of a backup barrel quenched after taper and volume heating. © 2010 Springer Science+Business Media, Inc. Source

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