WO2022203535A1 - Материал для изготовления высокопрочных крепежных изделий и способ его получения - Google Patents
Материал для изготовления высокопрочных крепежных изделий и способ его получения Download PDFInfo
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- WO2022203535A1 WO2022203535A1 PCT/RU2021/000128 RU2021000128W WO2022203535A1 WO 2022203535 A1 WO2022203535 A1 WO 2022203535A1 RU 2021000128 W RU2021000128 W RU 2021000128W WO 2022203535 A1 WO2022203535 A1 WO 2022203535A1
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- WIPO (PCT)
- Prior art keywords
- aging
- strength
- manufacture
- phase
- titanium alloy
- Prior art date
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- 239000000463 material Substances 0.000 title claims abstract description 73
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 230000032683 aging Effects 0.000 claims abstract description 37
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 18
- 239000003381 stabilizer Substances 0.000 claims abstract description 18
- 238000005275 alloying Methods 0.000 claims abstract description 15
- 238000005728 strengthening Methods 0.000 claims abstract description 14
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005096 rolling process Methods 0.000 claims abstract description 12
- 239000010936 titanium Substances 0.000 claims abstract description 12
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 12
- 230000007935 neutral effect Effects 0.000 claims abstract description 8
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 238000004663 powder metallurgy Methods 0.000 claims abstract description 4
- 239000006104 solid solution Substances 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 229910045601 alloy Inorganic materials 0.000 claims description 25
- 239000000956 alloy Substances 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 21
- 238000010438 heat treatment Methods 0.000 claims description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 16
- 239000011651 chromium Substances 0.000 claims description 16
- 229910052750 molybdenum Inorganic materials 0.000 claims description 16
- 239000011733 molybdenum Substances 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 239000000243 solution Substances 0.000 claims description 12
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 11
- 229910052804 chromium Inorganic materials 0.000 claims description 11
- 229910052742 iron Inorganic materials 0.000 claims description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 9
- 229910052726 zirconium Inorganic materials 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- 239000004848 polyfunctional curative Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 238000003723 Smelting Methods 0.000 claims 1
- 238000000137 annealing Methods 0.000 abstract description 11
- 238000002844 melting Methods 0.000 abstract description 4
- 230000008018 melting Effects 0.000 abstract description 4
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- 230000007423 decrease Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000009466 transformation Effects 0.000 description 4
- 210000003850 cellular structure Anatomy 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 238000005098 hot rolling Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 102220253765 rs141230910 Human genes 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 229910001040 Beta-titanium Inorganic materials 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 229910001199 N alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910010169 TiCr Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910021535 alpha-beta titanium Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000016507 interphase Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000001953 recrystallisation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C1/00—Manufacture of metal sheets, metal wire, metal rods, metal tubes by drawing
- B21C1/003—Drawing materials of special alloys so far as the composition of the alloy requires or permits special drawing methods or sequences
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C9/00—Cooling, heating or lubricating drawing material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
Definitions
- titanium-based materials are increasingly used in various industries.
- One of the promising areas is the manufacture of fasteners for the aircraft and automotive industries.
- work is underway to replace steel fasteners with products made of high-strength titanium alloys.
- threaded fasteners must have a high set of properties, in particular, high tensile strength and double shear strength.
- titanium alloys should approach in mechanical properties to steel materials having a tensile strength s B - 1500 MPa, a double shear strength t cf - 900 MPa, and relative elongation d - 12%.
- Strength and ductility are the basic mechanical properties of metals and alloys, the combination of which directly affects the technological and operational qualities of the material of the fastener. baking products.
- the most cost-effective process for manufacturing an external thread of fasteners is the process of obtaining a thread as a result of plastic deformation of the workpiece with a thread rolling tool.
- the rolled thread profile is formed by pressing the tool into the workpiece material and extruding part of the material into the tool cavities.
- Modern equipment and applied technologies make it possible to carry out thread rolling on the material in a heat-strengthened state, i.e. in the state after hardening and artificial aging. In this case, compressive stresses are formed in the internal turns of the thread, which significantly increase the number of cycles before crack initiation, which ensures an increase in the cyclic resistance of the material as a whole.
- the known method is intended for the manufacture of blanks of fasteners from titanium alloy W 16 and does not take into account the features of processing other high-strength materials and alloys, which leads to low values of tensile strength and double shear.
- the problem to be solved by the invention is to obtain a material based on a titanium alloy for high-strength fasteners, which has a complex of high mechanical properties and makes it possible to perform thread rolling in a heat-strengthened state.
- [A1] equiv [A1] + [0] x 10 + [C] x 10 + [N] x20 + [Zr] / 6, wt.%, with the content of each specific element in the following ranges: aluminum 3.0-6 , 5 nitrogen not more than 0.05 oxygen 0.05-0.3 carbon not more than 0.1 zirconium not more than 2.0 3, and the total number of elements providing solid-solution strengthening, as well as increasing the volume fraction of the metastable b-phase, is determined by the relation:
- [Mo] eq [Mo]+[V]/l.4+[Cr]xl.67+[Fe]x2.5 , wt. %, with the content of each specific element in the following ranges: vanadium 4, 0-6, 5 molybdenum 4, 0-6, 5 chromium 2, 0-3, 5 iron 0.2-1.0
- [Mo] eq - structural molybdenum equivalent the value of which in the alloy ranges from 12.4 to 17.4, while the volume fraction of the primary a-phase in the structure of the material subjected to solid solution treatment and aging is from 15 to 27%.
- the size of the beta subgrain in the structure of the material subjected to solid solution treatment and aging does not exceed 15 ⁇ m.
- the material for the manufacture of high-strength fasteners is made in the form of a round cross-section rod with a diameter of up to 40 mm, subjected to solid solution treatment and aging.
- the material for the manufacture of high-strength fasteners is made in the form of a round wire with a diameter of up to 18 mm, subjected to solution treatment and aging.
- the material for the manufacture of high-strength fasteners after solution treatment and aging has a tensile strength of more than 1400 MPa, an elongation of more than 11% and a relative contraction of more than 35%.
- the material for the manufacture of high-strength fasteners has, after solution treatment and aging, a double shear strength of more than 750 MPa.
- an intermediate workpiece for drawing is obtained from titanium alloy, containing alloying elements in the form of a - stabilizers, b - stabilizers, neutral hardeners, the rest is titanium and inevitable impurities, while the total amount of alloying elements that provide solid solution strengthening of the a-phase of the titanium alloy is determined by the ratio:
- [A1] equiv [A1] + [0] x 10 + [C] x 10 + [N] x20 + [Zr] / 6, wt.%, with the content of each specific element in the following ranges: aluminum 3.0-6 , 5 nitrogen not more than 0.05 oxygen 0.05-0.3 carbon not more than 0.1 zirconium not more than 2.0 3, and the total number of elements providing solid-solution strengthening, as well as increasing the volume fraction of the metastable b-phase, is determined by the relation:
- [A1] Eq - structural aluminum equivalent makes it possible to estimate the degree of stabilization of the a-phase, which is simultaneously provided to it by the a-stabilizing elements present in the alloy: aluminum, oxygen, carbon, nitrogen and zirconium.
- the established value of the total amount of alloying elements strengthening the titanium alloy by solid solution hardening, [ ⁇ 1] equiv is from 5.1 to 9.3. This makes it possible to obtain the necessary proportion of the ⁇ -phase in the entire indicated range of the chemical composition of the titanium alloy, taking into account the temperature-speed parameters of processing.
- the values of the content of each element are determined based on the following considerations.
- Aluminum increases the specific strength of the alloy, improves the strength properties and modulus of elasticity of titanium.
- the aluminum content in the alloy less than 3.0% does not provide the required strength of the alloy, and also increases the likelihood of the formation of the w-phase, which adversely affects the plasticity characteristics, with an aluminum content of more than 6.5%, the technological plasticity of the alloy decreases a it is also possible to form Ti Al particles which can cause embrittlement of the material.
- the oxygen content in the range of 0.05-0.3% increases the strength while maintaining the plasticity characteristics.
- the presence in the alloy of nitrogen of no more than 0.05% and carbon of no more than 0.1% has no effect on the decrease in ductility at room temperature.
- the alloy is additionally alloyed with zirconium no more than 2.0%, which increases the strength of the alloy, practically without reducing its plasticity and fracture toughness.
- Vanadium having a high solubility in titanium, in an amount of 4.0-6.5% increases the ability for hardening heat treatment and provides stabilization of the b-phase, as well as strengthening of the a-phase. Alloying with molybdenum in the range of 4.0-6.5% effectively increases the strength at room and elevated temperatures, and also increases the thermal stability of alloys containing chromium and iron.
- the content of chromium set in the range of 2.0-3.5%, is due to the fact that this element is a strong b-stabilizer and significantly strengthens titanium alloys.
- An increased level of plasticity of the material in heat-sealed in a broken state provides a combination of a large number of subboundaries with a size of b-subgrains up to 15 ⁇ m and the presence of grain-boundary dislocations in boundaries/subboundaries, as well as a large length of interfacial boundaries provided by particles of the primary a-phase in a volume fraction of 15-27% .
- the calculated chemical composition of the ingot is determined based on the ratio of the values of the total amount of alloying elements that provide solid-solution strengthening of the a-phase of the titanium alloy and are determined by the ratio:
- [A1] equiv [A1] + [0] x 10 + [C] x 10 + [N] x20 + [Zr] / 6, wt.%, with the content of each specific element in the following ranges: aluminum 3.0-6.5 nitrogen no more than 0.05 oxygen 0.05-0.3 carbon no more than 0.1 zirconium no more than 2.0
- [A1] eq - structural aluminum equivalent the value of which in the alloy ranges from 5.1 to 9.3, as well as the total number of elements that provide solid solution strengthening and increase the volume fraction of the metastable b-phase, determined by the relation:
- [Mo] 3KB [Mo]+[V]/l.4+[Cr]xl.67+[Fe]x2.5 , wt. %, with the content of each specific element in the following ranges: vanadium 4.0-6.5 molybdenum 4.0-6.5 chromium 2.0-3.5 iron 0.2-1.0 where [Mo] eq - structural molybdenum equivalent, the value of which in the alloy is from 12.4 to 17.4,
- the maximum size of the diameter of the obtained workpiece for drawing can be limited only by the capabilities of drawing equipment for cold deformation, since With an increase in the diameter of the workpiece, while ensuring an equal degree of deformation, the loads on the deforming tooling of the equipment and the specific drawing forces increase significantly.
- the non-uniformity of deformation over the section increases due to the accumulation during subsequent drawing of the non-uniformity of deformation of the peripheral and central layers of the workpiece, which, accordingly, creates an uneven structure of the final product.
- the proportion of the primary a-phase required for the redistribution and homogenization of stresses before subsequent drawing contributes to the effective accumulation of dislocations during further cold deformation, which determine subsequent recovery processes, polygonization and recrystallization. Cooling from the annealing temperature at an arithmetic mean rate of more than 15°C/min makes it possible to fix the metastable b-phase without its decomposition, and also to fix the established amount of the primary a-phase. In addition, this rate makes it possible to avoid the formation of a secondary a-phase, the presence of which significantly increases the hardening factor and makes it impossible to achieve high elongation factors at the next stage of the plastic deformation process.
- the drawing of the intermediate billet is carried out at room temperature with an elongation ratio in the range of 1.8-5.
- the density of dislocations increases significantly both in the b-phase and at the interphase boundaries and in the a-phase.
- Particles of the primary a-phase in an amount of 6 to 17% make it possible to optimally distribute dislocations along slip lines, creating their uniform distribution over the bulk of the material.
- a cellular structure is formed and stabilized in the material, which, when treated for a solid solution, provides the required size and number of b-phase subgrains.
- An elongation ratio of less than 1.8 does not ensure the stability of the cellular structure during subsequent treatment for a solid solution, even with an expansion of the temperature range, since The specific fraction of cells that transform into b-subgrains is lower, which leads to an increase in the size of b-subgrains and does not allow one to provide the values of mechanical properties after the final heat treatment.
- the maximum elongation ratio is characterized by the limiting damage of the material before destruction, which largely depends on the parameters of the drawing mode and the structure of the original work piece. tovki. After drawing, the material in the form of a wire or rod is subjected to hardening heat treatment, consisting of solution treatment and subsequent artificial aging.
- Processing for a solid solution is carried out according to the following regime: heating the material to a temperature of (Tpp-50)°C-(Tpp-80)°C, holding at a given temperature for 1-8 hours, cooling to a temperature below or equal to the temperature of subsequent aging with arithmetic mean speed over 10°C/min.
- This mode is due to obtaining the necessary parameters of the a- and b-phases.
- a structure is formed with an increased volume fraction of the primary a-phase up to 15–27% and the presence of subgrains of the b-phase in the structure no larger than 15 ⁇ m.
- the choice of aging temperatures is due to the degree of stability of the b-phase decomposing during aging, as well as the fineness of the secondary a-phase that is released, which predetermines the achievement of high strength values of the material.
- the duration of aging for at least 8 hours ensures the complete passage of the decomposition of the b-phase and bringing the material to an equilibrium state.
- adjusting operations were performed to obtain a workpiece with a diameter of 12.3 mm.
- a workpiece with a diameter of 12.3 mm was subjected to drawing at room temperature to a diameter of 8.6 mm.
- the surface defects and the gas-saturated layer were removed using abrasive grinding and etching, in which the diameter of the workpiece decreased to 8.05 mm.
- heat-strengthening treatment of the wire material was carried out according to the following mode: treatment for a solid solution when heated to a temperature of 768°C (Tpp-70)° and holding for 4 hours, cooling in air to room temperature at an arithmetic mean rate of more than 10°C/min; artificial aging at a temperature of 500°C, holding for 8 hours, cooling in air.
- Tpp-70 768°C
- Table 2 The results of testing the mechanical properties of the wire material with a diameter of 8.05 mm in the heat-strengthened state are given in Table 2.
- the image of the material microstructure in the longitudinal direction at 4000-fold magnification is shown in Fig. 1.
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- Materials Engineering (AREA)
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Powder Metallurgy (AREA)
- Forging (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3215094A CA3215094A1 (en) | 2021-03-26 | 2021-03-26 | Material for the manufacture of high-strength fasteners and method for producing same |
EP21933400.0A EP4317497A1 (en) | 2021-03-26 | 2021-03-26 | Material for the manufacture of high-strength fasteners and method for producing same |
JP2023558199A JP2024518681A (ja) | 2021-03-26 | 2021-03-26 | 高強度ファスナを製造するための材料およびそれを製造するための方法 |
BR112023019558A BR112023019558A2 (pt) | 2021-03-26 | 2021-03-26 | Material para fixadores de alta resistência e método para fabricar material de fixação de alta resistência |
PCT/RU2021/000128 WO2022203535A1 (ru) | 2021-03-26 | 2021-03-26 | Материал для изготовления высокопрочных крепежных изделий и способ его получения |
CN202180096386.9A CN117136248A (zh) | 2021-03-26 | 2021-03-26 | 用于制造高强度紧固件的材料及其生产方法 |
US18/552,343 US20240150869A1 (en) | 2021-03-26 | 2021-03-26 | Material for the manufacture of high-strength fasteners and method for producing same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/RU2021/000128 WO2022203535A1 (ru) | 2021-03-26 | 2021-03-26 | Материал для изготовления высокопрочных крепежных изделий и способ его получения |
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Publication Number | Publication Date |
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WO2022203535A1 true WO2022203535A1 (ru) | 2022-09-29 |
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PCT/RU2021/000128 WO2022203535A1 (ru) | 2021-03-26 | 2021-03-26 | Материал для изготовления высокопрочных крепежных изделий и способ его получения |
Country Status (7)
Country | Link |
---|---|
US (1) | US20240150869A1 (ru) |
EP (1) | EP4317497A1 (ru) |
JP (1) | JP2024518681A (ru) |
CN (1) | CN117136248A (ru) |
BR (1) | BR112023019558A2 (ru) |
CA (1) | CA3215094A1 (ru) |
WO (1) | WO2022203535A1 (ru) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116804261A (zh) * | 2023-08-21 | 2023-09-26 | 成都先进金属材料产业技术研究院股份有限公司 | 一种gh738合金棒材及其制备方法 |
Citations (5)
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RU2311248C1 (ru) * | 2006-05-06 | 2007-11-27 | Открытое акционерное общество "Всероссийский Институт Легких сплавов" (ОАО ВИЛС) | Способ получения прутков из титановых сплавов (варианты) |
RU2581332C2 (ru) * | 2010-09-23 | 2016-04-20 | ЭйТиАй ПРОПЕРТИЗ, ИНК. | Высокопрочные крепежные изделия и заготовки крепежных изделий из альфа/бета титанового сплава |
US9816158B2 (en) * | 2006-10-26 | 2017-11-14 | Nippon Steel & Sumitomo Metal Corporation | β-type titanium alloy |
WO2020101008A1 (ja) * | 2018-11-15 | 2020-05-22 | 日本製鉄株式会社 | チタン合金線材およびチタン合金線材の製造方法 |
RU2724751C1 (ru) * | 2019-01-22 | 2020-06-25 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Заготовка для высокопрочных крепежных изделий, выполненная из деформируемого титанового сплава, и способ ее изготовления |
-
2021
- 2021-03-26 WO PCT/RU2021/000128 patent/WO2022203535A1/ru active Application Filing
- 2021-03-26 EP EP21933400.0A patent/EP4317497A1/en active Pending
- 2021-03-26 CA CA3215094A patent/CA3215094A1/en active Pending
- 2021-03-26 US US18/552,343 patent/US20240150869A1/en active Pending
- 2021-03-26 JP JP2023558199A patent/JP2024518681A/ja active Pending
- 2021-03-26 CN CN202180096386.9A patent/CN117136248A/zh active Pending
- 2021-03-26 BR BR112023019558A patent/BR112023019558A2/pt unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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RU2311248C1 (ru) * | 2006-05-06 | 2007-11-27 | Открытое акционерное общество "Всероссийский Институт Легких сплавов" (ОАО ВИЛС) | Способ получения прутков из титановых сплавов (варианты) |
US9816158B2 (en) * | 2006-10-26 | 2017-11-14 | Nippon Steel & Sumitomo Metal Corporation | β-type titanium alloy |
RU2581332C2 (ru) * | 2010-09-23 | 2016-04-20 | ЭйТиАй ПРОПЕРТИЗ, ИНК. | Высокопрочные крепежные изделия и заготовки крепежных изделий из альфа/бета титанового сплава |
WO2020101008A1 (ja) * | 2018-11-15 | 2020-05-22 | 日本製鉄株式会社 | チタン合金線材およびチタン合金線材の製造方法 |
RU2724751C1 (ru) * | 2019-01-22 | 2020-06-25 | Публичное Акционерное Общество "Корпорация Всмпо-Ависма" | Заготовка для высокопрочных крепежных изделий, выполненная из деформируемого титанового сплава, и способ ее изготовления |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN116804261A (zh) * | 2023-08-21 | 2023-09-26 | 成都先进金属材料产业技术研究院股份有限公司 | 一种gh738合金棒材及其制备方法 |
CN116804261B (zh) * | 2023-08-21 | 2023-12-01 | 成都先进金属材料产业技术研究院股份有限公司 | 一种gh738合金棒材及其制备方法 |
Also Published As
Publication number | Publication date |
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CN117136248A (zh) | 2023-11-28 |
JP2024518681A (ja) | 2024-05-02 |
BR112023019558A2 (pt) | 2023-10-31 |
CA3215094A1 (en) | 2022-09-29 |
EP4317497A1 (en) | 2024-02-07 |
US20240150869A1 (en) | 2024-05-09 |
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