№1 2013
Materials science
The silicide particles formation in the heat-resistant titanium alloys
A. Popov, S. Demakov, M. Popova, N. Rossina, O. Elkina
The silicide particles formation in the heat-resistant titanium alloys has been discussed. It was shown that depending on the temperature-time parameters of treatment (Ti, Zr)5Si3 (S1) particles are formed primarily at interface α/β boundaries, and (Ti, Zr)6Si3 (S2) and (Ti, Zr)2Si (S3) particles are formed in the α-phase. The effect of the silicide particles on the α2-phase has been analyzed.
Keywords: the heat-resistant titanium alloys, silicide, titanium aluminide, heat treatment, structure, particles.
Influence of oxygen and heat treatment on forming of structure and properties of titanium of the electro-slag melting
O. Snizhko, A. Ryabtsev, O. Troyanskyy, V. Pashynskyi, B. Friedrich, J. Morscheiser, M. Bartosinski
The structure and properties of titanium alloyed by oxygen from the oxygen-containing ligature, gas phase and titanium oxide powder during chamber electroslag remelting of titanium sponge are investigated. Found that at the oxygen content of 0.053% to 0.22%. in the metal formed a homogeneous single-phase structure that typical for commercial titanium which formed by polyhedral grains of α-phase. The increasing of the oxygen concentration in titanium more than 0.22% leads to the formation of the microstructure, which has typical needle structure, which allows to classify it as α'-phase.
It is shown that in equilibrium (annealed) condition it is occur the formation of an inhomogeneous solid solution of oxygen in a-Ti.
Keywords: titanium, oxygen, chamber electroslag remelting, alloying, heat treatment, recrystallization.
Semi-products treatment technologies
Electron-beam ingots surface remelting for compound doped titanium alloy T110
S. Akhonin, O. Pikulin., V. Berezos
The possibility for nonwaste deletion of local surface defects from the surface of ingots of alloy of titan T110 by the method of electron beam surface remelting, which allows to shorten the losses of basis metal and alloying elements, is shown, that provides a considerable economic effect. Quality of remelting surface of ingots from alloy of titan T110 and forged pieces, which made from an ingots with remelted surface, is studied.
Keywords: electron-beam melting, titanium alloy T110, electron-beam ingots surface remelting, remelting zone, alloying element
Efficiency of isothermal deformation application under stampings production made of titanium alloys
A. Skugarev, A. Burkhanova, N. Nochovnaya, A. Izotova
The efficiency of the isothermal forging of VT22 alloy work pieces. The and present research results on phase composition changes and texture formation in VT22 alloy during isothermal forging was presented. The economic feasibility of this process was considered.
Keywords: isothermal deformation, titanium alloys, phase composition, texture, mechanical properties, efficiency
Increasing a tool-life of twist drills in machining of titanium alloys by electrical insulation
V. Pegashkin, V. Golubev, V. Medison
The paper presents the method of increasing a tool life, which consists in the electrical isolation of the cutting tool off the machine. There is a critical evaluation of existing technical implementations of this method. The author's way of improving the tool life, which consists in using the auxiliary tool made from the titanium alloy on the surface of which the oxide layer with dielectric properties was made by thermal oxidation, is described. The effectiveness of the proposed method is shown on the example of drilling titanium alloy.
Keywords: machining titanium alloys, tool life, electrical isolation of cutting tools, drilling.
Titanium application
Medico-technical justification for the titanium alloys use in implanted constructions for the stabilisation of the spine
М. Kollerov, V. Usikov, V. Kuftov, D. Gusev, E. Oreshko
An analysis has been made to reveal the influence of a material type and the geometry of longitudinal rods on the characteristics of transpedicular apparatus, used for stabilization of the spine. It has been shown that the most adequate mechanical behavior of the apparatus is achieved when using rods of titanium alloys (VT6) and those of nitinol (alloy TN1). The first should be used in the case of traumas of a spine, and the second - with treat degenerate and dystrophic diseases.
Keywords: titanium alloy, titanium nickelide, load, deformation, rigidity, implant, spine.
The development of new economically alloyed titanium for means of an individual armor protection and armored machinery. prospects of their application
A. Gavze, S. Chusov, V. Yankov, V. Tetukhin, A. Zhloba, A. Berestov, N. Bondaryuk
The paper presents the current application, the main directions of the research and application prospects of titanium alloys for body armor. Contains the main results on the development Economically titanium alloys for personal body armor, military vehicles and parts for armored vehicles carried out "VSMPO-AVISMA" together with "Research Institute of Steel." Just give an estimate of the cost and reduce the weight of body armor when using a titanium alloy developed Economically VST2, made with low cost charge materials.
Keywords: economically alloyed titanium, alloying element, ballistic properties, armor, rolling, plate, low cost charge materials.
Titanium market
Strategy realization introduction and monitoring of metallurgical companies
E. Suslov
In article definitions of strategic management, the strategic analysis, its methods and the purposes are given. The description of monitoring of performance of strategy is given. Necessary conditions for introduction of strategy are given. It is specified that is the key to success of carrying out realization of strategy. Requirements with which information processed in the course of monitoring should satisfy are provided and the monitoring system is given. There are examples from the Russian practice in attempts as much as possible to supervise strategy and chains of values.
Keywords: strategy, management, value, introduction, monitoring, structure.
The silicide particles formation in the heat-resistant titanium alloys
A. Popov, S. Demakov, M. Popova, N. Rossina, O. Elkina
The silicide particles formation in the heat-resistant titanium alloys has been discussed. It was shown that depending on the temperature-time parameters of treatment (Ti, Zr)5Si3 (S1) particles are formed primarily at interface α/β boundaries, and (Ti, Zr)6Si3 (S2) and (Ti, Zr)2Si (S3) particles are formed in the α-phase. The effect of the silicide particles on the α2-phase has been analyzed.
Keywords: the heat-resistant titanium alloys, silicide, titanium aluminide, heat treatment, structure, particles.
Influence of oxygen and heat treatment on forming of structure and properties of titanium of the electro-slag melting
O. Snizhko, A. Ryabtsev, O. Troyanskyy, V. Pashynskyi, B. Friedrich, J. Morscheiser, M. Bartosinski
The structure and properties of titanium alloyed by oxygen from the oxygen-containing ligature, gas phase and titanium oxide powder during chamber electroslag remelting of titanium sponge are investigated. Found that at the oxygen content of 0.053% to 0.22%. in the metal formed a homogeneous single-phase structure that typical for commercial titanium which formed by polyhedral grains of α-phase. The increasing of the oxygen concentration in titanium more than 0.22% leads to the formation of the microstructure, which has typical needle structure, which allows to classify it as α'-phase.
It is shown that in equilibrium (annealed) condition it is occur the formation of an inhomogeneous solid solution of oxygen in a-Ti.
Keywords: titanium, oxygen, chamber electroslag remelting, alloying, heat treatment, recrystallization.
Semi-products treatment technologies
Electron-beam ingots surface remelting for compound doped titanium alloy T110
S. Akhonin, O. Pikulin., V. Berezos
The possibility for nonwaste deletion of local surface defects from the surface of ingots of alloy of titan T110 by the method of electron beam surface remelting, which allows to shorten the losses of basis metal and alloying elements, is shown, that provides a considerable economic effect. Quality of remelting surface of ingots from alloy of titan T110 and forged pieces, which made from an ingots with remelted surface, is studied.
Keywords: electron-beam melting, titanium alloy T110, electron-beam ingots surface remelting, remelting zone, alloying element
Efficiency of isothermal deformation application under stampings production made of titanium alloys
A. Skugarev, A. Burkhanova, N. Nochovnaya, A. Izotova
The efficiency of the isothermal forging of VT22 alloy work pieces. The and present research results on phase composition changes and texture formation in VT22 alloy during isothermal forging was presented. The economic feasibility of this process was considered.
Keywords: isothermal deformation, titanium alloys, phase composition, texture, mechanical properties, efficiency
Increasing a tool-life of twist drills in machining of titanium alloys by electrical insulation
V. Pegashkin, V. Golubev, V. Medison
The paper presents the method of increasing a tool life, which consists in the electrical isolation of the cutting tool off the machine. There is a critical evaluation of existing technical implementations of this method. The author's way of improving the tool life, which consists in using the auxiliary tool made from the titanium alloy on the surface of which the oxide layer with dielectric properties was made by thermal oxidation, is described. The effectiveness of the proposed method is shown on the example of drilling titanium alloy.
Keywords: machining titanium alloys, tool life, electrical isolation of cutting tools, drilling.
Titanium application
Medico-technical justification for the titanium alloys use in implanted constructions for the stabilisation of the spine
М. Kollerov, V. Usikov, V. Kuftov, D. Gusev, E. Oreshko
An analysis has been made to reveal the influence of a material type and the geometry of longitudinal rods on the characteristics of transpedicular apparatus, used for stabilization of the spine. It has been shown that the most adequate mechanical behavior of the apparatus is achieved when using rods of titanium alloys (VT6) and those of nitinol (alloy TN1). The first should be used in the case of traumas of a spine, and the second - with treat degenerate and dystrophic diseases.
Keywords: titanium alloy, titanium nickelide, load, deformation, rigidity, implant, spine.
The development of new economically alloyed titanium for means of an individual armor protection and armored machinery. prospects of their application
A. Gavze, S. Chusov, V. Yankov, V. Tetukhin, A. Zhloba, A. Berestov, N. Bondaryuk
The paper presents the current application, the main directions of the research and application prospects of titanium alloys for body armor. Contains the main results on the development Economically titanium alloys for personal body armor, military vehicles and parts for armored vehicles carried out "VSMPO-AVISMA" together with "Research Institute of Steel." Just give an estimate of the cost and reduce the weight of body armor when using a titanium alloy developed Economically VST2, made with low cost charge materials.
Keywords: economically alloyed titanium, alloying element, ballistic properties, armor, rolling, plate, low cost charge materials.
Titanium market
Strategy realization introduction and monitoring of metallurgical companies
E. Suslov
In article definitions of strategic management, the strategic analysis, its methods and the purposes are given. The description of monitoring of performance of strategy is given. Necessary conditions for introduction of strategy are given. It is specified that is the key to success of carrying out realization of strategy. Requirements with which information processed in the course of monitoring should satisfy are provided and the monitoring system is given. There are examples from the Russian practice in attempts as much as possible to supervise strategy and chains of values.
Keywords: strategy, management, value, introduction, monitoring, structure.
