Alloys based on titanium (C22C14)

C   Chemistry; metallurgy(315514)
C22C14                 Alloys based on titanium(344)

Titanium alloy with improved properties // 2627312
FIELD: metallurgy.SUBSTANCE: production method of the titanium alloy blank includes the steps at which the titanium alloy ingot is obtained, including wt %: from 6.0 to 6.7 aluminium, from 1.4 to 2.0 vanadium, from 1.4 to 2.0 molybdenum, from 0.20 to 0.42 silicon, from 0.17 to 0.23 oxygen, up to 0.24 iron, up to 0.08 carbon, titanium and unavoidable impurities remained, perform the first heat treatment of the alloy at the temperature of 40 and 200 Celsius degrees above the beta-transus temperature and forging. Then, the second heat treatment is carried out at the temperature of 30-100 Celsius degrees below the beta-transus, the alloy rolling into the plate, bar, or flat bar and provide annealing at the temperature below the beta transus.EFFECT: received blanks have high strength, durability characteristics at low cycle fatigue.21 cl, 11 dwg, 4 tbl

Intermetallide titanium-based alloy and product thereof // 2627304
FIELD: metallurgy.SUBSTANCE: invention can be used for manufacturing parts of aviation and space equipment, long-working up to 700°C. The intermetallide titanium-based alloy contains, wt %: aluminium 10.5-12.5, niobium 38.5-42.0, molybdenum 0.5-1.5, vanadium 0.5-2.0, zirconium 1.0-2.5, tungsten 0.3-1.5, tantalum 0.1-0.8, silicon 0.1-0.25, yttrium 0.02-0.6, titanium and impurities - the rest.EFFECT: plasticity at room temperature and heat resistance at temperatures up to 700 degrees increase.3 cl, 1 dwg

Thermomechanical processing of nickel-titanium alloys // 2627092
FIELD: metallurgy.SUBSTANCE: manufacturing method of the nickel-titanium rolled product involves hot forging of the ingot at the temperature greater than or equal to 500°C with producing the billet, hot rod rolling of the billet at the temperature greater than or equal to 500°C to produce the blank, cold drawing of the blank at the temperature of less than 500°C with producing the bar and hot isostatic pressing (HIP) for at least 0.25 hours in the HIP furnace, operating at the temperature in the range from 700°C to 1,000°C and pressure in the range from 3,000 pounds per sq. inch (20.7 MPa) up to 50,000 pounds per sq. inch (344.7 MPa).EFFECT: density of non-metallic inclusions per unit area decreases, which ensures the high surface quality, and high fatigue life of the product.27 cl, 8 dwg, 10 tbl, 5 ex

ethod of intermetallic alloys processing, based on titanium gamma aluminide // 2625515
FIELD: metallurgy.SUBSTANCE: method of intermetallic alloys processing, based on titanium gamma aluminide, which includes directional, floating-zone refining of the casting cylindrical billet from the intermetallic alloy, based on the gamma titanium aluminide in the inert gas atmosphere. Directional, floating-zone refining of the billet is carried out in the vertical reactor. Heating and melting of the billet is carried out by means of the inductor, moving from the bottom to the top with the constant speed of 150 mm/h with the power, providing the melted zone length, not exceeding the casting diameter and the axial temperature gradient of at least 300°C/cm, using the alternating induction current with the frequency in the range of 10 kHz - 1 MHz. Argon or helium is used as the inert gas.EFFECT: yield limit and alloys strength values are increased, the mechanical properties uniformity is enhanced by creating the ordered lamellar-granular phase alloys microstructure.2 cl, 3 dwg, 1 tbl, 1 ex
Alloy // 2625148
FIELD: metallurgy.SUBSTANCE: alloy contains, wt %: aluminium 25.0-35.0; vanadium 25.0-35.0; niobium 5.0-15.0; titanium - the rest.EFFECT: improvement of alloy properties.1 tbl
Intermetallic tial based alloy // 2621500
FIELD: metallurgy.SUBSTANCE: invention relates to the field of metallurgy, in particular master TiAl-based alloys with a predominant phase of γ-TiAl, and can be used in the manufacture of components of aircraft gas turbine engines. The TiAl-based alloy contains at %: aluminium 44-47, niobium 5-8, chromium 1-3, zirconium 1-3, Ti - the rest. The total content of transition metals Nb, Cr and Zr is no more than 12 at %. The alloy has an ordered duplex structure (γ+α2)/γ/B2.EFFECT: alloy is characterized by high mechanical characteristics.1 dwg, 1 tbl
Titanium-based alloy // 2619535
FIELD: metallurgy.SUBSTANCE: titanium-based alloy contains, wt %: molybdenum 29.0-35.0; palladium 10.0-15.0; ruthenium 0.8-1.2; rhodium 2.6-3.0; titanium - the rest.EFFECT: alloy is resistant to oxidation.1 tbl

Application method of titanium aluminide and product with titanium aluminide surface // 2619419
FIELD: metallurgy.SUBSTANCE: application method of titanium aluminide coating to the metal product contains titanium aluminide cold spraying to the product to form a coating of titanium aluminide. Titanium aluminide coating includes a thin gamma/alpha2 structure, and titanium aluminide, sprayed on the product, it has a composition, including 45 wt % titanium and 50 wt % aluminum. In an embodiment of the claimed invention, the cold spraying of titanium aluminide is carried out from a powder solid raw material of alloy powder.EFFECT: high resistance to high temperature surface oxidation, products repair, subjected to fatigue failure, having damages from impacts and process damages.19 cl, 2 dwg

Titanium alloys for fasteners // 2618016
FIELD: metallurgy.SUBSTANCE: method for producing titanium alloy comprises providing presence of titanium alloy produced by using at least 50% of scrap titanium, titanium alloy annealing, wherein titanium alloy contains in wt %: aluminium 5.50 to 6.75, vanadium 3.50 to 4.50, oxygen 0.25 to 0.50, and iron 0.40 to 0.80.EFFECT: obtaining a titanium alloy with high level of oxygen and iron content, with high mechanical characteristics.13 cl, 11 dwg
Production method of composite titan-niobium powder for additive technologies // 2617572
FIELD: metallurgy.SUBSTANCE: method involves mechanical activation of titanium and niobium powders mixture with the addition of anti-agglomerating component. The mechanical activation of titanium and niobium powders mixture is carried out in the shock-friction type planetary ball mill for 10-20 min, with acceleration of grinding bodies 40 g, with the ratio of the powders mixture and grinding bodies volume equal to 1:20, and the ethyl alcohol is used as the anti-agglomerating component.EFFECT: titanium and niobium uniform distribution according to the composite volume.4 cl; 1 ex

ethod of making part made of titanium alloy ta6zr4de // 2616691
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, in particular, to production of parts from TA6Zr4DE alloy, and can be used for production of rotating parts of a turbine machine. Method of making a part of a turbine machine, made from titanium alloy TA6Zr4DE, forging a blank in an alpha/beta domain to form a preform, hot die-stamping preform to form a rough part in beta domain of titanium alloy and heat treatment. During hot die-stamping, rough part is subjected throughout to equivalent generalized deformation greater than or equal to 1.2, hot die-stamping terminating with hardening at cooling rate faster than 85 °C/min. Minimum equivalent generalized deformation is implemented and high strength is achieved.EFFECT: longer service life of parts.12 cl, 4 dwg, 1 tbl

High strength and ductility alpha/beta titanium alloy // 2616676
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, specifically to alpha/beta titanium alloys with high strength and ductility. Alpha/beta titanium alloy contains, wt%: from 3.9 to 4.5, aluminium, from 2.2 to 3.0 vanadium, from 1.2 to 1.8 iron, from 0.24 to 0.30 oxygen, up to 0.08 carbon maximum, up to 0.05 nitrogen maximum, up to 0.015 hydrogen maximum, a total of up to 0.30 other elements: less than 0.005 of each of boron and yttrium, not more than 0.10 of each of tin, zirconium, molybdenum, chromium, nickel, silicon, copper, niobium, tantalum, manganese and cobalt, and balance is titanium and unintentional impurities.EFFECT: alloy is characterized by high mechanical properties with reduced weight.22 cl, 3 dwg, 3 tbl, 3 ex
Titanium-based alloy and product made from it // 2614356
FIELD: metallurgy.SUBSTANCE: titanium-based alloy contains, wt %: aluminium 1.5-4.5;. vanadium 13.5-19.0; chrome 2.0-5.0; tin 2.0-4.0; molybdenum 0.5-2.5; zirconium 0.5-2.5; niobium 0.01-0.40; yttrium 0.005-0.150; titanium and impurities - the rest.EFFECT: alloy is characterized by high values of ductility, thermal stability, and creep strength in the thermally hardened condition, while keeping the fracture viscosity values.5 cl, 2 tbl, 4 ex
Titanium-based alloy and product made from it // 2614355
FIELD: metallurgy.SUBSTANCE: titanium-based alloy contains, weight %: aluminium 6.0-8.0, molybdenum - 0.4-1.3, tin - 1.5-3.5, zirconium 1.0-5.0 , iron - 0.05-0.4, niobium - 0.4-1.4, silicon - 0.1-0.4, tantalum - 0.2-1.0, tungsten - 0.3-1.3, beryllium - 0.01-0.15, titanium - the rest.EFFECT: alloy is characterized by high values of short-term strength.2 cl, 2 tbl, 4 ex
Gamma titanium aluminide-based alloy // 2614354
FIELD: metallurgy.SUBSTANCE: gamma titanium aluminide based alloy contains wt %: aluminium 29.0-33.0 , niobium 5.0-9.0, tungsten 1.0-2.0, molybdenum 2.0-4.0, vanadium 1.0-3.0, borium 0.003- 0.1, titanium - the rest. The molybdenum and tungsten weight ratio in the alloy is 2:1. The alloy may additionally contain the iron in the amount from 0.003 to 0.3 wt % and/ or oxygen in the amount from 0.003 to 0.15 wt %.EFFECT: increase of the absolute and specific values of ultimate strength and yield strength at temperatures of 20 and 750 degrees, the working temperature of the alloy increase up to 800 degrees by providing thermal stability of structure and high stress rupture strength.3 cl, 2 tbl, 7 ex
Titanium-based alloy // 2614229
FIELD: metallurgy.SUBSTANCE: titanium-based alloy contains, wt %: aluminium 1.8-2.5, carbon 0.05-0.10, zirconium 2.0-3.0, iron 0.05-0.25, silicon 0.02-0.05, nitrogen 0.01-0.04, oxygen 0.03-0.10, hydrogen 0.002-0.004, palladium 0.05-0.15, titanium - the rest.EFFECT: alloy is characterized by high resistance to general, gap and pit corrosion in saline media.2 tbl, 1 ex
Titanium-based cast alloy // 2614228
FIELD: metallurgy.SUBSTANCE: casting titanium-based alloy contains, wt %: aluminium 3.5-5.0, carbon 0.02-0.14, oxygen 0.05-0.14, hydrogen 0.002-0.008, iron 0.02-0.20, silicon 0.02-0.10, vanadium 1.5-2.5, boriumn 0.001-0.003, titanium and impurities - the rest, if the following ratio is done Fe+Si≤0.25 wt %.EFFECT: alloy is characterized by high fluidity and by the complex of mechanical properties, providing the quality and reliability of both cast and welded joints.2 tbl
Composite material based on nitinol // 2613835
FIELD: metallurgy.SUBSTANCE: invention relates to composite materials based on nitinol, and is intended for production of micromachine and machinery parts, medical instruments. Composite material based on nitinol comprises wt %: Cu - 5-10, Zr - 5-10, Ti - 36-44, Ni - 36-44, and at least one alloying element extracted from cobalt - not less than 5, yttrium - not less than 2, niobium - not less than 5, and boron - not less than 1, the rest. Material has a biphasic structure consisting of nitinol crystalline matrix phase and amorphous phase disposed along grain boundaries of the matrix phase.EFFECT: material of diameter up to 5 mm with high strength and ductility with superelastic effect is obtained.12 dwg, 4 ex
ethod for consumable electrode producing from alloys based on titanium and aluminium intermetallic compounds // 2613832
FIELD: metallurgy.SUBSTANCE: invention relates to manufacture of consumable electrode for melting ingots of titanium-aluminium alloys containing 15-63 wt % of aluminium. Method comprises preparing a charge by mixing titanium sponge and semi-finished aluminium product, charge portion flow into conical matrix and subsequent through-feed pressing. Titanium sponge is used in the form of spherical bodies with a diameter of 10-25 mm, and aluminium semi-finished product - in the form of bars with the diameter : length ratio = 1:1. Ratio of linear aluminium semi-finished product dimensions to linear titanium sponge dimensions is 2.5-3.5.EFFECT: increased mechanical properties of electrodes.2 cl, 6 tbl
ethod of producing low-modulus alloys based on titan-niobium system by selective laser alloyage // 2612480
FIELD: metallurgy.SUBSTANCE: first, titanium and niobium powders are mechanically activated at a weight ratio of 6:4. Then the mechanically activated mixture of titanium-niobium powder is placed in a vacuum chamber in a laser processing zone with 0.05-0.1 mm layer. Forevacuum of at least 10-2 Pa is created in the vacuum chamber, and argon is injected. Heating is performed by intense laser radiation to a temperature of 2800-3000°C, followed by holding at said temperature for 1-3 msec.EFFECT: obtaining low-modulus titanium-niobium alloy of given composition with certain properties, with a uniform distribution of structural components throughout the alloy volume, which is environmentally friendly due to the absence of foreign materials in synthesis products, reducing the processing time and reducing the cost of the finished product due to the absence of pre-melting of TiNb alloy and subsequent production of powder from this alloy for selective laser alloyage.3 cl, 3 ex
ethod of titanium-based composite workpiece manufacturing // 2612106
FIELD: metallurgy.SUBSTANCE: invention refers to titanium-based composite workpiece manufacturing. Method involves preparation of charge containing titanium alloy waste, and change compaction by pressing to form workpieces. Charge is prepared by adding titanium powder to titanium alloy waste treated in alkaline solution at the 70/30 weight ratio of waste and titanium powder, obtained charge is pickled in acid solution to ensure deoxidation and hydrogenisation up to 0.1-1 wt % of hydrogen in titanium, then the charge is ground along with mixing and heated to pressing temperature, after pressing, impurities are removed from workpiece surface, the workpiece is lubricated, rolled and dehydrogenised thermally.EFFECT: improved mechanical properties, strength and plasticity of workpieces.3 cl, 1 ex
Titanium-based alloy and product made from it // 2610657
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, particularly to titanium alloys that may be used as a high strength structural heat-hardening material for manufacture of parts for aviation and space technology power structures, power systems and missiles operating on a long term basis at the temperatures of up to 350°C. Titanium-based alloy comprises the following, wt %: aluminium 1.0-6.0; molybdenum 5.0-10.0; vanadium 5.0-10.0; iron 0.3-3.5; chrome 0.3-3.5; tin 0.1-2.0; zirconium 0.1-2.0; sulfur 0.0001-0.30; oxygen 0.01-0.20; nitrogen 0.005-0.050; hydrogen 0.003-0.020; carbon 0.005-0.100; silicon 0.01-0.10; titanium is the rest.EFFECT: alloy designed for manufacture of parts has high crack resistance and technological plasticity properties.5 cl, 2 tbl, 4 ex
Sparingly doped titanium alloy // 2610193
FIELD: metallurgy.SUBSTANCE: invention refers to metallurgy. Titanium-based alloy comprises the following, wt %: aluminum 4.5-6.5, vanadium 1.0-3.0, iron 0.5-2.5, gadolinium 0.2-0.6, silicon 0.003-0.15, oxygen 0.003-0.15, titanium is the rest. The alloy has high yield tensile strength properties at the temperature of 20°C as well as a sound structure and a reduced tendency to embrittlement during operation at the temperatures of -70 to +400°C.EFFECT: creation of structural titanium alloys for manufacture of medium loaded parts which are used among other things for an aircraft glider kit operating at the temperatures from -70 to +400°C.3 cl, 2 tbl, 5 ex
ethod for obtaining fine titanium powder // 2609762
FIELD: chemistry.SUBSTANCE: method comprises the activation of the starting material, the hydrogenation, grinding the resulting titanium hydride, titanium hydride thermal decomposition in a vacuum and grinding the resulting cake of titanium. As starting material the ingot is used, which is obtained by the vacuum remelting of titanium raw materials in water-cooled copper ingot mold and crystallizing at a specific heat flux through the surface of the mold (3.3-3.9) ⋅ 106 W / m2. Activation is led in two stages: first treating solution containing water, nitric acid and hydrofluoric acid at a component ratio H2O: HNO3:HF, equal to (0.9 ÷ 1.1):(0.9 ÷ 1.1):(0.17 ÷ 0.23) followed by hydrogenation in the chamber containing hydrogen chloride in volume of 0.01-0.015% of chamber volume. Hydrogenation is conducted at an excess pressure of hydrogen in the hydrogenation chamber 1.1-2.0 atm until the hydrogen content in titanium 350-410 l/kg.EFFECT: increasing of yield of usable powder with granules rounded form 20-50 microns.1 tbl
Titanium-based alloy (versions) and article made therefrom // 2606677
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, specifically to titanium alloys, used to make load-carrying structures, operating for a long time at temperatures of up to 350 °C. Alloy contains, wt%: aluminium – 1.8–3.5, molybdenum – 1.0–3.0, vanadium – 8.0–12.0, chrome – 2.5–4.6, iron – 0.3–1.6, zirconium – 0.4–2.0, tin 0.4–2.0, ruthenium – 0.01–0.16, titanium – balance. Alloy can additionally contain yttrium and/or gadolinium 0.01–0.16.EFFECT: alloy is characterised by high characteristics of ultimate strength at 20 °C in quenched and thermally hardened conditions while maintaining satisfactory ultimate ductility and corrosion resistance against crevice and pitting corrosion.6 cl, 3 tbl, 8 ex

ethod for producing alloy containing titanium, iron, chromium and silicon, from aqueous suspension of particles of ores containing titanium, iron, chromium and silicon compounds, and device therefor // 2606670
FIELD: metallurgy.SUBSTANCE: invention relates to a method of producing an alloy comprising titanium, iron, chromium and silicon from an aqueous suspension of particles of ores containing compounds of said elements, and a device for its implementation. Method includes generating physical fields, their action on raw material mixture, recovery of metals and nonmetals, and forming them into a monolithic structural formation of an alloy composed of said elements.EFFECT: invention allows to obtain said alloy as a circular columnar single crystal directly from raw ore.2 cl, 5 dwg, 2 ex

ethod for producing alloy consisting of titanium, iron, chromium and zirconium, from aqueous suspension of particles of ores containing titanium, iron, chromium and zirconium compounds, and device therefor // 2606669
FIELD: metallurgy.SUBSTANCE: invention relates to a method of preparing an alloy consisting of titanium, iron, chromium and zirconium, from an aqueous suspension of particles of ores containing compounds of said elements, and a device for its implementation. Method comprises placing a starting material in device, generating therein physical fields, recovery of metals with accumulation of end product and discharge thereof from device. Alloy is formed in form of ring columnar crystalline form in form of alloy consisting of above metals. Physical fields acting on used raw materials are rack magnetic fields. Reduction is carried out when supplying to material and its layers jets of compressed air with component-reducing agent, represented by carbon in form of a jet.EFFECT: simple process and high operational reliability.2 cl, 5 dwg, 2 ex
Intermetallic titanium-based alloy and article made therefrom // 2606368
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, in particular, to alloys based on intermetallic compounds of titanium and aluminium with operating temperature not higher than 825 °C, products of which can be used in designing aircraft gas turbine engines and surface power plants. Disclosed are versions of alloys based on gamma titanium aluminide. Alloy based on gamma titanium aluminide contains, wt%: aluminium 30.0–35.0, vanadium 0.7–3.5, niobium 1.2–6.0, zirconium 1.2–3.5 or chrome 2.0–3.5, gadolinium 0.2–0.6, boron 0.003–0.03, titanium – balance. Alloys are characterised by high values of yield point at a temperature of 20 °C, long-term strength (over 100 hours) at a temperature of 800 °C, as well as low tendency to formation of liquation heterogeneity of chemical composition.EFFECT: use in aircraft gas turbine engines and surface power plants.4 cl, 2 tbl, 6 ex

Protective coating for titanium last stage buckets // 2601674
FIELD: engines.SUBSTANCE: invention relates to titanium buckets of large size of last stages steam-turbine engines. Bucket includes a titanium-based alloy having a leading edge, including titanium oxide, having pores and a top sealing layer filling pores, sealing layer selected from a group, consisting of chromium, cobalt, nickel, polyimide, polytetrafluoroethylene and polyester. Disclosed is a method of making such bucket and an article containing titanium-based alloy and having a leading edge.EFFECT: invention provides high durability, and reduced losses from erosion and high economic efficiency.20 cl, 4 dwg, 1 tbl

Titanium-based solder for soldering alloy based on niobium intermetallide // 2600785
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, specifically to high-temperature solder based on titanium, which can be used in making soldered components of hot section of gas turbine engines. Titanium-based solder for soldering niobium intermetallide-based alloy with melting point not lower than 1,350 °C contains wt%: aluminium 18.0-25.0, molybdenum 1.0-10.0, silicon 3.0-6.0, chrome 10.0-15.0, hafnium 1.0-5.0, titanium - balance.EFFECT: solder provides additional weight at temperature 1,350 °C higher than that of niobium intermetallide-based alloy, and value of erosion activity with respect to niobium intermetallide-based alloy not more than 50 mcm at a temperature of 1,500 °C.5 cl, 1 tbl, 4 ex
ethod of thermal hydrogen processing of semi-fabricated products from porous material based on titanium and its alloys // 2594548
FIELD: metal processing.SUBSTANCE: invention relates to thermal hydrogen processing of semi-fabricated products from porous material based on titanium and its alloys for medical implants. Method involves thermal diffusion saturation with hydrogen and vacuum annealing. Thermal diffusion saturation with hydrogen is carried out at temperature of 700-900 °C to hydrogen concentration of 0.2-0.4 wt%, and then at temperature of 500-650 °C to hydrogen concentration of 0.5-0.9 wt%. Vacuum annealing is carried out at 550-700 °C to hydrogen concentration of not more than 0.01 wt%.EFFECT: higher strength of porous material due to increased share of physical fibers contacts between each other.1 cl, 2 ex

ethod of producing of molded articles from titanium nickelide-based alloy // 2593255
FIELD: metallurgy. SUBSTANCE: invention relates to manufacturing of titanium nickelide-based alloys used for medical implants. Method of manufacturing of molded articles involves remelting of metal of the semi-finished product by induction centrifugal melting in karborundovom melter. It is preceded with melting of samples from alloy based on titanium nickelide with varied concentration of allying agent in the range of 0.5-2 %, testing of samples on plastic recovery and superelasticity, determining by interpolation of the optimum concentration of alloying admixture and with that concentration the finished product is melted. Metal semi-finished product is represented by porous workpiece, which is prepared by diffusion by sintering in vacuum of mixed powder of titanium nickelide PN55PT45 with alloying agent at 1,230-1,270 °C during 0.5-5 minutes, then it is subjected to cold pressure treatment to porosity of 25-30 vol%. EFFECT: uniform distribution of alloying additive in alloy is provided. 1 cl, 2 dwg

Heat-resistant titanium-based alloy and article made therefrom // 2592657
FIELD: metallurgy. SUBSTANCE: invention relates to production of heat-resistant titanium-based alloys used for manufacture of wide range of deformed semi-finished products and parts. Heat-resistant titanium-based alloy contains, wt%: aluminium is 10.5-12.5; niobium is 38.5-42.0; molybdenum is 0.5-1.5; vanadium is 0.5-1.5; zirconium is 1.0-2.5; tungsten is 0.3-1.0; tantalum is 0.3-1.0; silicon is 0.1-0.25; gadolinium is 0.02-0.6; titanium and admixtures are rest. EFFECT: alloy is characterised by high values of strength at room and high temperatures of up to 700 °C. 3 cl, 1 tbl, 3 ex

Titanium-based alloy and article made therefrom // 2586947
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, namely to intermetallic titanium-based alloys intended for production of parts of gas turbine engine such as blades, discs, housing and spacers, operating at high temperatures. Ti based alloy contains in % by weight: Al 9.5-12.0, Nb 38.0-42.0, Zr 1.5-2.5, Ta 0.7-1.5, W 0.5-1.0, Mo 0.3-0.6, Si 0.1-0.25, Re 0.1-0.5, C 0.03-0.08, B 0.01-0.1, Ti and admixtures are rest. Alloy is characterised by high resistance to oxidation at temperatures higher than 700 °C.EFFECT: reliable operation of structure made using titanium-based alloy for whole service life.6 cl, 2 tbl, 4 ex

Titanium-based alloy // 2583972
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, specifically to titanium-based alloys, and is intended for use in steam-turbine plants and heavy-duty welded structures operated at high temperature. Titanium-based alloy contains, wt%: aluminium 4.3-6.3; molybdenum 1.5-2.5; carbon 0.05-0.14; zirconium 0.2-1.0; oxygen 0.06-0.14; silicon 0.02-0.12; iron 0.05-0.25; niobium 0.03-1.20; hafnium 0.01-0.5; titanium - balance.EFFECT: alloy has high creep strength at 500°C and preset residual deformation of 2/10 % while maintaining high mechanical properties and corrosion resistance of welded structures.1 cl, 1 tbl

ethod for producing highly thin sheet of titanium alloy ti-6,5al-2,5sn-4zr-1nb-0,7mo-0,15si // 2583567
FIELD: metal processing.SUBSTANCE: invention relates to metal compression forming, namely to manufacture of very thin sheets from high-strength pseudo-alpha titanium alloy Ti-6.5Al-2.5Sn-4Zr-1Nb-0.7Mo-0.15Si. Method for production of very thin sheets from titanium alloy Ti-6.5Al-2.5Sn-4Zr-1Nb-0.7Mo-0.15Si includes preliminary processing of ingot by forging or stamping of ingot in β-area to produce slab, slab hot rolling to semi-finished rolled piece is carried out in 4 stages: first stage, at temperature (RRT+120÷RRT+150) °C with total deformation degree of 50-70 %, second stage, at temperature (RRT-30÷RRT-60) °C with total deformation degree 40-65 %, third stage, at temperature (RRT+80÷RRT+120) °C with total deformation degree 40-60 %, and fourth stage, at temperature (RRT-30÷RRT-70) °C with total deformation degree 40-80 %. Then cutting is performed of semifinished rolled product into sheet workpieces, their assembly into package, packet rolling into sheet blank at temperature (RRT-60÷RRT-100) °C, with total deformation of pack of 60-80 %, and then cold rolling, with intermediate and final annealings, and finishing processing at all stages.EFFECT: higher manufacturability and quality of produced super thin sheets.1 cl, 1 dwg, 1 tbl

Sparingly alloyed titanium alloy // 2583556
FIELD: metallurgy.SUBSTANCE: invention relates to nonferrous metallurgy, particularly to titanium alloys obtained from secondary raw material and having specified characteristics of strength and ductility. Alloy contains 0.1-3.0 Al, Fe 0.3-3.0, 0.1-1.0 Cr, Ni 0.05-1.0, Si 0.02-0.3, N 0.02-0.2, O 0.05-0.5, C 0.02-0.1, Ti - balance. Value of strength of molybdenum [Mo]eqetkand aluminium [Al]eqetkequivalents and reduced amount of equivalents are defined by expressions: [Al]eqetk = Al + 20 O + 33 N + 12 C + 3.3 Si, wt%, [Mo]eqetk = Cr/0.8 + Fe/0.7 + Ni, wt%, Σeqetk = 1.11 [Al]eqetk + 0.92 [Mo]eqetk, where value of given sum Σeqetk of equivalents is 5-22. Value of given sumΣeqetkof equivalents ranges from 5 to 10 for welded structures from 10 to 18 for flat rolled stock, from 18 to 22 for structural purposes.EFFECT: alloy is characterised by high values of strength and ductility.4 cl, 11 tbl, 3 ex

Titanium alloy with good corrosion resistance and high mechanical strength at elevated temperatures // 2583221
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, particularly to titanium-based alloys. High-temperature titanium-based alloy contains, wt%: aluminium from 4.5 to 7.5; tin from 2.0 to 8.0; niobium from 1.5 to 6.5; molybdenum from 0.1 to 2.5; Silicon from 0.1 to 0.6; titanium - balance.EFFECT: alloy is characterised by high corrosion resistance, mechanical strength at high temperatures of up to 750 °C, weldability, as well as high characteristics of ability to deformation in hot/cold state and to superplastic formation.21 cl, 8 dwg, 12 tbl

Titanium-based alloy // 2582171
FIELD: metallurgy.SUBSTANCE: invention relates to titanium alloys, and can be used in making structures operated in aggressive media, such as marine water at high temperatures. Titanium-based alloy contains, wt %: aluminium 3.0-4.2, zirconium 2.0-3.0, silicon 0.02-0.12, iron 0.05-0.25, oxygen 0.03-0.14, nitrogen 0.01-0.04, carbon 0.05-0.10, hydrogen 0.001-0.006, ruthenium 0.05-0.15, niobium 0.7-1.5, vanadium 0.7-1.5, balance is titanium.EFFECT: alloy is characterised by high strength, resistance to slot, pitting and hot salt corrosion in aggressive selenium-containing media with pH>2 and temperature of up to 250°C.1 cl, 2 tbl

High strength alpha/beta titanium alloy fasteners and fastener stock // 2581332
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, particularly to fasteners made from alpha/beta titanium alloy. Fastener made from alpha/beta titanium alloy is subjected to hot rolling, processing to solid solution and ageing, containing, wt%: aluminium from 3.9 to 4.5, vanadium from 2.2 to 3.0, iron from 1.2 to 1.8, oxygen from 0.24 to 0.3, carbon up to 0.08, nitrogen up to 0.05, other elements not more than 0.3 in total, titanium and unintentional impurities - balance. Method for production of fasteners includes provision of alloy, hot rolling; obtained workpiece is annealed at temperature from 1200°F (648.9°C) to 1400°F (760°C) for 1 hour to 2 hours, cooling in air, machining to preset product size, processing to solid solution at a temperature of 1500°F (815.6°C) to 1700°F (926.7°C) for 0.5 hours to 2 hours, cooling with rate at least equivalent to air cooling, ageing at temperature from 800°F (426.7°C) up to 1000°F (537.8°C) for 4 hours to 16 hours and air cooling.EFFECT: production of light-weight and high-strength fasteners.14 cl, 5 dwg, 4 tbl, 8 ex

ethod for thermomechanical processing of workpiece made of titanium or titanium alloy // 2581331
FIELD: metallurgy.SUBSTANCE: invention relates to metallurgy, specifically to a method of thermomechanical treatment of titanium or titanium alloy. Method comprises multiaxial forging with high rate of deformation and temperature control. Temperature of forging workpiece is in a range from temperature which is 100 °F (55.6 °C) below beta-transition temperature of workpiece material to a temperature 700°F (388.9 °C) below beta-transition temperature of workpiece material, and deformation rate used in process of forging at a press is in a range from 0.2 s-1 to 0.8 s-1.EFFECT: improved mechanical properties due to grinding of alloy microstructure.44 cl, 20 dwg, 11 ex

ethod of producing of intermetallic alloys based on titanium aluminide with increased niobium content // 2576288
FIELD: metallurgy.SUBSTANCE: method of producing of intermetallic alloys based on titanium aluminide with increased niobium content and maximum oxygen content 0.08 %wt includes preparation of the charge containing as input materials the titanium sponge with alloying components and foundry alloy, production of the consumable electrode, its remelting with production of the intermetallic alloy ingot. As the foundry alloy the alloy shaves are used, they contain in wt %: Nb 45-55, Ti 45-55, O2+N2 - maximum 0.05, at that content by weight of the foundry alloy is 70 or 75 or 85% of total weight of the charge.EFFECT: increased chemical uniformity of the alloy ingots based on titanium aluminide with high content of niobium, and with oxygen content to ensure high mechanical and process properties of the produced items.6 tbl, 4 ex

ethod of producing alloy containing aluminium and titanium and device for its implementation // 2575899
FIELD: metallurgy.SUBSTANCE: method includes alloy production from a water suspension of ore particles, containing compounds of aluminium and titanium. For this physical magnetic fields are generated, that are superimposed on the zones with ore mass. Using them the metals are restored to a solid monolith structure, i.e. alloy.EFFECT: possibility of production of the said alloy directly from ore.2 cl, 6 dwg, 3 ex

Production of alloy containing titanium, copper and silicon and device to this end // 2575895
FIELD: metallurgy.SUBSTANCE: claimed production of said alloy from the ore particles suspension containing the titanium, copper and silicon compounds includes the generation of magnetic fields applied to the portion of processed stock bulk. Note here that metal reduction is conducted at continuous mixing of raw stock to accumulate and to form the product as a circular column-like structural formation of the alloy containing titanium, copper and silicon. Then, it is discharged. Invention proposes also the device to this end.EFFECT: production of claimed alloy from ore stock directly.2 cl, 5 dwg, 3 ex

Production of sheet alloys alpha-beta-ti-al-v-mo-fe // 2573158
FIELD: metallurgy.SUBSTANCE: production of the sheet with fine-grained structure of α/β-titanium alloy comprises forging of the titanium alloy slab to get the sheet blank to be heated to the temperature higher than that of conversion into beta-phase by the magnitude from approx 100°F (37.8°C) to approx 250°F (121°C) and further heating. Than, it is heated to the temperature from approx 1400°F (760°C) to approx 1550°F (843°C) with further hot rolling to get the blank of intermediate depth. Than, it is heated to the temperature from approx 1400°F (760°C) to approx 1550°F (843°C) with further hot rolling to get the blank of final depth. Now, annealing, grinding and etching are performed.EFFECT: sheet blank with fine-grained structure suitable for low-temperature forming.21 cl, 26 dwg, 8 tbl, 5 ex

Powder mix for production of titanium alloy, titanium alloy made thereof and methods of their fabrication // 2572928
FIELD: metallurgy.SUBSTANCE: group of inventions relates to powder metallurgy. Claimed mix comprises the titanium alloy powder containing aluminium and vanadium or, additionally, one element of zirconium, tin, molybdenum, iron and chromium, and at least one metal powder selected from powders of copper, chromium and iron, mixed with titanium alloy powder. Note here that titanium alloy powder is produced by titanium alloy stock hydrogenation and dehydrogenation of obtained hydrogenated stock. The amount of metal powder makes 1-10 wt % at addition of one type of metal powder. At addition of two or more types of metal powders the amount of added metal powder makes 1-20 wt %. This invention disclosed also the production of said powder mix, titanium alloy and its production thereof.EFFECT: higher quality of powder mix, mix density increased to at least 99% of theoretical value.6 cl, 4 dwg, 3 tbl, 20 ex

High strength alloy based on titanium and article made from high strength alloy based on titanium // 2569285
FIELD: metallurgy.SUBSTANCE: titanium-based alloy contains wt %: aluminium 1.5-3.5; molybdenum 1.0-3.0; vanadium 8.0-12.0; chromium 2.5-5.0; iron 0.3-1.8; zirconium 0.4-2.0; tin 0.4-2.0; yttrium and/or gadolinium 0.01-0.16; titanium and admixtures - rest.EFFECT: alloy is characterised by high strength characteristics upon keeping high plasticity of the alloy in thermally strengthened condition, and increased production effectiveness in hardened condition.4 cl, 1 tbl, 5 ex

ethod of alloy production based on titanium from water suspension of particles of ore containing compounds of titanium, and device of its implementation // 2567768
FIELD: metallurgy.SUBSTANCE: method includes generation of magnetic fields applied to portions of processed raw material, metals restoration from ores upon continuous mixing of the raw material mass with further accumulation and formation of product in form of ring columnar monocrystal comprising intermetallic compound selected from TiAl3, TiFeAl2, TiAl2Fe, TiFe3, and its unloading. Water suspension comprising particles of ore with dispersion within range 0.001-0.008 mm and in amount of 40-70% of water suspension volume is used as input raw material mass. At that the sawlike magnetic fields with intensity 3·104÷1.5·105 A/m and oscillations frequency 20-80 pulses per 1 minute are used as magnetic fields. Restoration is performed with gas jets supply to the raw material layers, the jets contain compressed atmosphere air and carbon as deoxidant, it present in compressed gases. Invention proposes also the device for this method implementation.EFFECT: production of alloy directly from ore.2 cl, 5 dwg, 3 ex

Welded titanium-based alloy // 2566125
FIELD: metallurgy.SUBSTANCE: invention can be used to manufacture deformed semi-finished products, and castings intended to manufacture parts of power and transport engineering, aviation and space equipment with work temperatures in range from -196 to 450°C. Titanium-based alloy contains in wt %: aluminium 1.8-4.4, vanadium 1.0-2.5, iron 0.05-0.5, zirconium 0.05-3.0; oxygen 0.05-0.22, molybdenum 0.5-1.5, niobium 0.05-0.8, silicon 0.05-0.2, carbon 0.005-0.1, and titanium is the rest.EFFECT: use of said welded titanium-based alloy increases work temperature of the parts use, level of plasticity and process plasticity with keeping of high strength values.2 cl, 2 tbl

Alloying of high-strength titan // 2566113
FIELD: metallurgy.SUBSTANCE: invention relates to the method of alloying of titanium alloys. The method of thermomechanical treatment of titanium alloy includes the pressure treatment of titanium alloy which comprises plastic deformation at the temperature in the field of alpha and beta phases until equivalent plastic deformation with at least 25% decrease of the cross section area then the temperature of the titanium alloy doesn't achieve and doesn't exceed the temperature of beta transition of the titanium alloy. Further one-stage heat treatment is performed at the temperature, smaller or equal to the beta transition temperature minus 11.1°C.EFFECT: alloys have high characteristics of strength and impact viscosity.41 cl, 7 dwg, 3 tbl, 4 ex
 
2551070.
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