CN103695709A - Titanium-based alloy plate and preparation method thereof - Google Patents
Titanium-based alloy plate and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a preparation method of a titanium-based alloy plate, which is characterized in that the alloy comprises the following components in percentage by mass: 8-9% of Ni, 1-2% of Al, 0.7-0.8% of Zn, 0.4-0.5% of Nb, 0.6-0.7% of V, 0.3-0.4% of Mo, 0.6-0.7% of Bi, 0.1-0.2% of Mg, 0.7-0.8% of Si, 0.1-0.2% of Sn, 0.07-0.08% of Co, 0.04-0.05% of Cr, 0.02-0.03% of Ta, 0.07-0.08% of Ca, 0.05-0.06% of Y and the balance of titanium and unavoidable nonmetal impurities. The structural uniformity of the titanium alloy plate is easy to control, the advantages of the low-gap titanium alloy in performance can be sufficiently developed, and the processed material has good strength, toughness and plastic matching.
Description
Technical field
The present invention relates to a kind of titanium base alloy sheet material and preparation method thereof, belong to titanium base alloy and manufacture field.
Background technology
Ti-6Al-4V be use the most extensively, the most ripe typical (alpha+beta) diphasic titanium alloy, nearly 40 years of the history that various countries research and develop in succession also has alloy designations separately.Its compositional characteristic is: alloying element allowable fluctuation range wider (Al:5.5%-6.75%), and impurity allows content higher (Fe:0.3%max, O:0.2%max, H:0.015%max); Thereby bring higher metallurgical imperfection possibility, lower plasticity and toughness and shorter work-ing life.For this reason, with the minority developed country headed by American and Britain, at nearly 20 years, developed again corresponding low gap alloy, as U.S. UNS R56401, ASTM F468, Grade 23, AMS4930, Ti-64ELI, Britain IMI318ELI, France TA6VELI etc., are widely used in the key areas such as low temperature, medical treatment, naval vessel and aircraft.Its compositional characteristic is: alloying element allowable fluctuation range narrower (Al:5.5%～6.5%), and impurity allows content lower (Fe:0.25%max, O:0.13%max, H:0.0125%); Thereby bring less metallurgical imperfection possibility, higher plasticity and toughness, welding property and longer work-ing life preferably.Than the K1C of Ti-6Al-4V alloy, improve nearly one times, da/dN and reduce and reach an order of magnitude, be now applied on advanced air fighter and civil aircraft of new generation.For example, the U.S. by Ti-6Al-4V and Ti-6Al-4V ELI Alloyapplication in the tailplane rotating shaft of F-16 air fighter, main rotor, the tail rotor rotatable parts of the vertiplanes such as the number one cab windshield window skeleton of Boeing-767 and UH60A " blackhawk ", SH60B " Hai Ying ", CH53E " super kind of horse ".The large-scale stamp work of supporting beam that the main landing gear of civil aircraft Boeing-747 is used (heavy 1545kg, long 6.2m, wide 0.95m, shadow area 4.06m2), started from 1969 to produce until nowadays still in supply.Nowadays, Ti-6Al-4V (Ti-6Al-4V ELI) the titanium alloy application of the U.S. the 4th generation opportunity of combat F22, F/A-18E/F etc. has entered and has adopted the more ripe application stage of large-scale integral stamp work, as titanium alloy in F22 air fighter part accounts for 41% of aircraft weight, wherein Ti-6Al-4V ELI accounts for again 87.5% of titanium alloy weight.Wherein F-22 rear body monoblock type bulkhead (heavy 1590kg, long 3.8m, wide 1.7m, shadow area 5.53m2) is the current titanium alloy closed mould forging of maximum in the world.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of easy to operate, titanium base alloy preparation of plates method that process controllability is strong is provided.This technique can make titanium alloy plate keep the coupling of good intensity, fracture toughness property and plasticity, and plate property batch stability improves.
For achieving the above object, the technical solution used in the present invention is as follows:
A kind of titanium base alloy preparation of plates method, it is characterized in that: each constituent mass percentage composition of described alloy is: Ni 8-9%, Al 1-2%, Zn 0.7-0.8%, Nb 0.4-0.5%, V 0.6-0.7%, Mo 0.3-0.4%, Bi 0.6-0.7%, Mg 0.1-0.2%, Si 0.7-0.8%, Sn 0.1-0.2%, Co 0.07-0.08%, Cr 0.04-0.05%, Ta 0.02-0.03%, Ca 0.07-0.08%, Y 0.05-0.06%, surplus is titanium and inevitable nonmetal inclusion
Said method comprising the steps of:
(1) according to titanium base alloy component, prepare burden and batch mixing, and be pressed into block electrode, adopt vacuum consumable electrode arc furnace to carry out melting, then cast alloy cast ingot,
(2) above-mentioned alloy cast ingot is carried out to homogenizing annealing processing, first alloy cast ingot is heated to 1030 ℃, soaking time is 16 hours; After be cooled to 900 ℃, soaking time is 6 hours; Afterwards with 100 ℃/h of slow coolings to room temperature.
(3) the above-mentioned alloy cast ingot carrying out after homogenizing annealing is forged, initial forging temperature is that 930 ℃, final forging temperature are 890 ℃, and after forging, alloy cast ingot, at 850 ℃, is incubated 6 hours;
(4) alloy cast ingot after forging is carried out to hot rolling, 850 ℃ of hot-rolled temperatures, pass deformation 15%, total deformation is greater than 70%, and after hot rolling, air cooling, to room temperature, carries out 740 ℃ of stress relief annealings to sheet material afterwards, is incubated 8 hours,
(5) cold rolling: the oxide film of first removing plate surface after hot rolling, then sheet material is carried out to the cold rolling thickness of sheet material that makes of the first passage and reduce 6%, sheet material after cold rolling is carried out to process annealing processing, process annealing temperature is 600 ℃, the process annealing time is insulation 6 hours, sheet material after annealing is carried out to the cold rolling thickness of sheet material that makes again and reduce 6%, repeat process annealing and cold rolling step, until make sheet material meet the requirements of size;
(6) sheet material is carried out to quench treatment, sheet material is reached to 940 ℃ of quenching temperatures with the temperature rise rate of 120 ℃/h and carry out Water Quenching;
(7) sheet material after quenching is heated to 470 ℃, is incubated 9 hours, be then cooled to 390 ℃ of insulations 5 hours,
(8) after thermal treatment, plate surface is processed, first select many ribs type 250 order emergies to carry out surface coarsening processing, adopt again alkaline hydrated oxide 83%, sequestrant 6%, ethylene glycol 4%, nickelous chloride 1%, ammonium chloride 1%, the hot solution of the surface active agent composition of trihydroxybenzene 5% is carried out activation treatment to the titanium alloy plate surface after processing, and it is sintering metal that the sheet material after activation is carried out to hot spraying WC; WC is that cermet particles size is 400 μ m, and by spray gun, making WC is that sintering metal is deposited as wear-resistant coating on sheet material, and WC is that sintering metal composition is: WC 23-24 part, and Ni 11-15 part, 5 parts of Fe, Mo 5-6 part, Zn 3-4 part,
(9) after plate surface is processed, sheet material is heated to 870 ℃, is incubated 4 hours, then with 80 ℃/h, be cooled to 430 ℃ of insulations 7 hours, with 15 ℃/h, be cooled to 280 ℃ of insulations 6 hours again, after cool to room temperature with the furnace and obtain final titanium alloy plate.
As preferably, described titanium base alloy preparation of plates method, each constituent mass percentage composition of described alloy is: Ni 8%, Al 1%, Zn 0.7%, Nb 0.4%, V 0.6%, Mo 0.3%, Bi 0.6%, Mg 0.1%, Si 0.7%, Sn 0.1%, Co 0.07%, Cr 0.04%, Ta 0.02%, Ca 0.07%, Y 0.05%, surplus is titanium and inevitable nonmetal inclusion.
As preferably, described titanium base alloy preparation of plates method, each constituent mass percentage composition of described alloy is: Ni 9%, Al 2%, Zn 0.8%, Nb 0.5%, V 0.7%, Mo 0.4%, Bi 0.7%, Mg 0.2%, Si 0.8%, Sn 0.2%, Co 0.08%, Cr 0.05%, Ta 0.03%, Ca 0.08%, Y 0.06%, surplus is titanium and inevitable nonmetal inclusion.
As preferably, described titanium base alloy preparation of plates method, each constituent mass percentage composition of described alloy is: Ni 8.5%, Al 1.5%, Zn 0.75%, Nb 0.45%, V 0.65%, Mo 0.35%, Bi 0.65%, Mg 0.15%, Si 0.75%, Sn 0.15%, Co 0.075%, Cr 0.045%, Ta 0.025%, Ca 0.075%, Y 0.055%, surplus is titanium and inevitable nonmetal inclusion.
As preferably, described titanium base alloy preparation of plates method, each constituent mass percentage composition of described alloy is: Ni 8.3%, Al 1.2%, Zn 0.73%, Nb 0.47%, V 0.68%, Mo 0.39%, Bi 0.64%, Mg 0.16%, Si 0.73%, Sn 0.16%, Co 0.078%, Cr 0.044%, Ta 0.023%, Ca 0.077%, Y 0.056%, surplus is titanium and inevitable nonmetal inclusion.
As preferably, described titanium base alloy preparation of plates method, WC is that sintering metal composition is: 23 parts of WC, 11 parts of Ni, 5 parts of Fe, 5 parts of Mo, 3 parts of Zn.
As preferably, described titanium base alloy preparation of plates method, WC is that sintering metal composition is: 24 parts of WC, 15 parts of Ni, 5 parts of Fe, 6 parts of Mo, 4 parts of Zn.
As preferably, described titanium base alloy preparation of plates method, WC is that sintering metal composition is: 23.5 parts of WC, 13 parts of Ni, 5 parts of Fe, 5.5 parts of Mo, 3.5 parts of Zn.
Compared with prior art, the present invention has following beneficial effect:
Process window of the present invention is wider, and homogeneity of structure is easily controlled, and can give full play to the performance advantage of low gap titanium alloy, and the strength of materials of processing, toughness and plasticity coupling are good, and batch stability of plate property is improved.The intensity requirement that touches the mark, more than intensity reaches 1200MPa.
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Embodiment
Embodiment 1:
A kind of titanium base alloy preparation of plates method is provided, it is characterized in that: each constituent mass percentage composition of described alloy is: Ni 8%, Al 1%, Zn 0.7%, Nb 0.4%, V 0.6%, Mo 0.3%, Bi 0.6%, Mg 0.1%, Si 0.7%, Sn 0.1%, Co 0.07%, Cr 0.04%, Ta 0.02%, Ca 0.07%, Y 0.05%, surplus is titanium and inevitable nonmetal inclusion
Said method comprising the steps of:
(1) according to titanium base alloy component, prepare burden and batch mixing, and be pressed into block electrode, adopt vacuum consumable electrode arc furnace to carry out melting, then cast alloy cast ingot,
(2) above-mentioned alloy cast ingot is carried out to homogenizing annealing processing, first alloy cast ingot is heated to 1030 ℃, soaking time is 16 hours; After be cooled to 900 ℃, soaking time is 6 hours; Afterwards with 100 ℃/h of slow coolings to room temperature.
(3) the above-mentioned alloy cast ingot carrying out after homogenizing annealing is forged, initial forging temperature is that 930 ℃, final forging temperature are 890 ℃, and after forging, alloy cast ingot, at 850 ℃, is incubated 6 hours;
(4) alloy cast ingot after forging is carried out to hot rolling, 850 ℃ of hot-rolled temperatures, pass deformation 15%, total deformation is greater than 70%, and after hot rolling, air cooling, to room temperature, carries out 740 ℃ of stress relief annealings to sheet material afterwards, is incubated 8 hours,
(5) cold rolling: the oxide film of first removing plate surface after hot rolling, then sheet material is carried out to the cold rolling thickness of sheet material that makes of the first passage and reduce 6%, sheet material after cold rolling is carried out to process annealing processing, process annealing temperature is 600 ℃, the process annealing time is insulation 6 hours, sheet material after annealing is carried out to the cold rolling thickness of sheet material that makes again and reduce 6%, repeat process annealing and cold rolling step, until make sheet material meet the requirements of size;
(6) sheet material is carried out to quench treatment, sheet material is reached to 940 ℃ of quenching temperatures with the temperature rise rate of 120 ℃/h and carry out Water Quenching;
(7) sheet material after quenching is heated to 470 ℃, is incubated 9 hours, be then cooled to 390 ℃ of insulations 5 hours,
(8) after thermal treatment, plate surface is processed, first select many ribs type 250 order emergies to carry out surface coarsening processing, adopt again alkaline hydrated oxide 83%, sequestrant 6%, ethylene glycol 4%, nickelous chloride 1%, ammonium chloride 1%, the hot solution of the surface active agent composition of trihydroxybenzene 5% is carried out activation treatment to the titanium alloy plate surface after processing, and it is sintering metal that the sheet material after activation is carried out to hot spraying WC; WC is that cermet particles size is 400 μ m, and by spray gun, making WC is that sintering metal is deposited as wear-resistant coating on sheet material, and WC is that sintering metal composition is: 23 parts of WC, and 11 parts of Ni, 5 parts of Fe, 5 parts of Mo, 3 parts of Zn,
(9) after plate surface is processed, sheet material is heated to 870 ℃, is incubated 4 hours, then with 80 ℃/h, be cooled to 430 ℃ of insulations 7 hours, with 15 ℃/h, be cooled to 280 ℃ of insulations 6 hours again, after cool to room temperature with the furnace and obtain final titanium alloy plate.
Embodiment 2:
A kind of titanium base alloy preparation of plates method is provided, it is characterized in that: each constituent mass percentage composition of described alloy is: Ni 9%, Al 2%, Zn 0.8%, Nb 0.5%, V 0.7%, Mo 0.4%, Bi 0.7%, Mg 0.2%, Si 0.8%, Sn 0.2%, Co 0.08%, Cr 0.05%, Ta 0.03%, Ca 0.08%, Y 0.06%, surplus is titanium and inevitable nonmetal inclusion
Said method comprising the steps of:
(1) according to titanium base alloy component, prepare burden and batch mixing, and be pressed into block electrode, adopt vacuum consumable electrode arc furnace to carry out melting, then cast alloy cast ingot,
(2) above-mentioned alloy cast ingot is carried out to homogenizing annealing processing, first alloy cast ingot is heated to 1030 ℃, soaking time is 16 hours; After be cooled to 900 ℃, soaking time is 6 hours; Afterwards with 100 ℃/h of slow coolings to room temperature.
(3) the above-mentioned alloy cast ingot carrying out after homogenizing annealing is forged, initial forging temperature is that 930 ℃, final forging temperature are 890 ℃, and after forging, alloy cast ingot, at 850 ℃, is incubated 6 hours;
(4) alloy cast ingot after forging is carried out to hot rolling, 850 ℃ of hot-rolled temperatures, pass deformation 15%, total deformation is greater than 70%, and after hot rolling, air cooling, to room temperature, carries out 740 ℃ of stress relief annealings to sheet material afterwards, is incubated 8 hours,
(5) cold rolling: the oxide film of first removing plate surface after hot rolling, then sheet material is carried out to the cold rolling thickness of sheet material that makes of the first passage and reduce 6%, sheet material after cold rolling is carried out to process annealing processing, process annealing temperature is 600 ℃, the process annealing time is insulation 6 hours, sheet material after annealing is carried out to the cold rolling thickness of sheet material that makes again and reduce 6%, repeat process annealing and cold rolling step, until make sheet material meet the requirements of size;
(6) sheet material is carried out to quench treatment, sheet material is reached to 940 ℃ of quenching temperatures with the temperature rise rate of 120 ℃/h and carry out Water Quenching;
(7) sheet material after quenching is heated to 470 ℃, is incubated 9 hours, be then cooled to 390 ℃ of insulations 5 hours,
(8) after thermal treatment, plate surface is processed, first select many ribs type 250 order emergies to carry out surface coarsening processing, adopt again alkaline hydrated oxide 83%, sequestrant 6%, ethylene glycol 4%, nickelous chloride 1%, ammonium chloride 1%, the hot solution of the surface active agent composition of trihydroxybenzene 5% is carried out activation treatment to the titanium alloy plate surface after processing, and it is sintering metal that the sheet material after activation is carried out to hot spraying WC; WC is that cermet particles size is 400 μ m, and by spray gun, making WC is that sintering metal is deposited as wear-resistant coating on sheet material, and WC is that sintering metal composition is: 24 parts of WC, and 15 parts of Ni, 5 parts of Fe, 6 parts of Mo, 4 parts of Zn,
(9) after plate surface is processed, sheet material is heated to 870 ℃, is incubated 4 hours, then with 80 ℃/h, be cooled to 430 ℃ of insulations 7 hours, with 15 ℃/h, be cooled to 280 ℃ of insulations 6 hours again, after cool to room temperature with the furnace and obtain final titanium alloy plate.
Embodiment 3:
A kind of titanium base alloy preparation of plates method is provided, it is characterized in that: each constituent mass percentage composition of described alloy is: Ni 8.5%, Al 1.5%, Zn 0.75%, Nb 0.45%, V 0.65%, Mo 0.35%, Bi 0.65%, Mg 0.15%, Si 0.75%, Sn 0.15%, Co 0.075%, Cr 0.045%, Ta 0.025%, Ca 0.075%, Y 0.055%, surplus is titanium and inevitable nonmetal inclusion
Said method comprising the steps of:
(1) according to titanium base alloy component, prepare burden and batch mixing, and be pressed into block electrode, adopt vacuum consumable electrode arc furnace to carry out melting, then cast alloy cast ingot,
(2) above-mentioned alloy cast ingot is carried out to homogenizing annealing processing, first alloy cast ingot is heated to 1030 ℃, soaking time is 16 hours; After be cooled to 900 ℃, soaking time is 6 hours; Afterwards with 100 ℃/h of slow coolings to room temperature.
(3) the above-mentioned alloy cast ingot carrying out after homogenizing annealing is forged, initial forging temperature is that 930 ℃, final forging temperature are 890 ℃, and after forging, alloy cast ingot, at 850 ℃, is incubated 6 hours;
(4) alloy cast ingot after forging is carried out to hot rolling, 850 ℃ of hot-rolled temperatures, pass deformation 15%, total deformation is greater than 70%, and after hot rolling, air cooling, to room temperature, carries out 740 ℃ of stress relief annealings to sheet material afterwards, is incubated 8 hours,
(5) cold rolling: the oxide film of first removing plate surface after hot rolling, then sheet material is carried out to the cold rolling thickness of sheet material that makes of the first passage and reduce 6%, sheet material after cold rolling is carried out to process annealing processing, process annealing temperature is 600 ℃, the process annealing time is insulation 6 hours, sheet material after annealing is carried out to the cold rolling thickness of sheet material that makes again and reduce 6%, repeat process annealing and cold rolling step, until make sheet material meet the requirements of size;
(6) sheet material is carried out to quench treatment, sheet material is reached to 940 ℃ of quenching temperatures with the temperature rise rate of 120 ℃/h and carry out Water Quenching;
(7) sheet material after quenching is heated to 470 ℃, is incubated 9 hours, be then cooled to 390 ℃ of insulations 5 hours,
(8) after thermal treatment, plate surface is processed, first select many ribs type 250 order emergies to carry out surface coarsening processing, adopt again alkaline hydrated oxide 83%, sequestrant 6%, ethylene glycol 4%, nickelous chloride 1%, ammonium chloride 1%, the hot solution of the surface active agent composition of trihydroxybenzene 5% is carried out activation treatment to the titanium alloy plate surface after processing, and it is sintering metal that the sheet material after activation is carried out to hot spraying WC; WC is that cermet particles size is 400 μ m, and by spray gun, making WC is that sintering metal is deposited as wear-resistant coating on sheet material, and WC is that sintering metal composition is: 23.5 parts of WC, and 13 parts of Ni, 5 parts of Fe, 5.5 parts of Mo, 3.5 parts of Zn,
(9) after plate surface is processed, sheet material is heated to 870 ℃, is incubated 4 hours, then with 80 ℃/h, be cooled to 430 ℃ of insulations 7 hours, with 15 ℃/h, be cooled to 280 ℃ of insulations 6 hours again, after cool to room temperature with the furnace and obtain final titanium alloy plate.
Embodiment 4:
A kind of titanium base alloy preparation of plates method is provided, it is characterized in that: each constituent mass percentage composition of described alloy is: Ni 8.3%, Al 1.8%, Zn 0.74%, Nb 0.42%, V 0.66%, Mo 0.39%, Bi 0.67%, Mg 0.14%, Si 0.73%, Sn 0.11%, Co 0.076%, Cr 0.046%, Ta 0.027%, Ca 0.079%, Y 0.051%, surplus is titanium and inevitable nonmetal inclusion
Said method comprising the steps of:
(1) according to titanium base alloy component, prepare burden and batch mixing, and be pressed into block electrode, adopt vacuum consumable electrode arc furnace to carry out melting, then cast alloy cast ingot,
(2) above-mentioned alloy cast ingot is carried out to homogenizing annealing processing, first alloy cast ingot is heated to 1030 ℃, soaking time is 16 hours; After be cooled to 900 ℃, soaking time is 6 hours; Afterwards with 100 ℃/h of slow coolings to room temperature.
(3) the above-mentioned alloy cast ingot carrying out after homogenizing annealing is forged, initial forging temperature is that 930 ℃, final forging temperature are 890 ℃, and after forging, alloy cast ingot, at 850 ℃, is incubated 6 hours;
(4) alloy cast ingot after forging is carried out to hot rolling, 850 ℃ of hot-rolled temperatures, pass deformation 15%, total deformation is greater than 70%, and after hot rolling, air cooling, to room temperature, carries out 740 ℃ of stress relief annealings to sheet material afterwards, is incubated 8 hours,
(5) cold rolling: the oxide film of first removing plate surface after hot rolling, then sheet material is carried out to the cold rolling thickness of sheet material that makes of the first passage and reduce 6%, sheet material after cold rolling is carried out to process annealing processing, process annealing temperature is 600 ℃, the process annealing time is insulation 6 hours, sheet material after annealing is carried out to the cold rolling thickness of sheet material that makes again and reduce 6%, repeat process annealing and cold rolling step, until make sheet material meet the requirements of size;
(6) sheet material is carried out to quench treatment, sheet material is reached to 940 ℃ of quenching temperatures with the temperature rise rate of 120 ℃/h and carry out Water Quenching;
(7) sheet material after quenching is heated to 470 ℃, is incubated 9 hours, be then cooled to 390 ℃ of insulations 5 hours,
(8) after thermal treatment, plate surface is processed, first select many ribs type 250 order emergies to carry out surface coarsening processing, adopt again alkaline hydrated oxide 83%, sequestrant 6%, ethylene glycol 4%, nickelous chloride 1%, ammonium chloride 1%, the hot solution of the surface active agent composition of trihydroxybenzene 5% is carried out activation treatment to the titanium alloy plate surface after processing, and it is sintering metal that the sheet material after activation is carried out to hot spraying WC; WC is that cermet particles size is 400 μ m, and by spray gun, making WC is that sintering metal is deposited as wear-resistant coating on sheet material, and WC is that sintering metal composition is: 23.6 parts of WC, and 14 parts of Ni, 5 parts of Fe, 5.9 parts of Mo, 3.3 parts of Zn,
(9) after plate surface is processed, sheet material is heated to 870 ℃, is incubated 4 hours, then with 80 ℃/h, be cooled to 430 ℃ of insulations 7 hours, with 15 ℃/h, be cooled to 280 ℃ of insulations 6 hours again, after cool to room temperature with the furnace and obtain final titanium alloy plate.
Embodiment 5:
A kind of titanium base alloy preparation of plates method is provided, it is characterized in that: each constituent mass percentage composition of described alloy is: Ni 8.6%, Al 1.9%, Zn 0.78%, Nb 0.44%, V 0.63%, Mo 0.37%, Bi 0.69%, Mg 0.12%, Si 0.76%, Sn 0.18%, Co 0.077%, Cr 0.042%, Ta 0.025%, Ca 0.074%, Y 0.057%, surplus is titanium and inevitable nonmetal inclusion
Said method comprising the steps of:
(1) according to titanium base alloy component, prepare burden and batch mixing, and be pressed into block electrode, adopt vacuum consumable electrode arc furnace to carry out melting, then cast alloy cast ingot,
(2) above-mentioned alloy cast ingot is carried out to homogenizing annealing processing, first alloy cast ingot is heated to 1030 ℃, soaking time is 16 hours; After be cooled to 900 ℃, soaking time is 6 hours; Afterwards with 100 ℃/h of slow coolings to room temperature.
(3) the above-mentioned alloy cast ingot carrying out after homogenizing annealing is forged, initial forging temperature is that 930 ℃, final forging temperature are 890 ℃, and after forging, alloy cast ingot, at 850 ℃, is incubated 6 hours;
(4) alloy cast ingot after forging is carried out to hot rolling, 850 ℃ of hot-rolled temperatures, pass deformation 15%, total deformation is greater than 70%, and after hot rolling, air cooling, to room temperature, carries out 740 ℃ of stress relief annealings to sheet material afterwards, is incubated 8 hours,
(5) cold rolling: the oxide film of first removing plate surface after hot rolling, then sheet material is carried out to the cold rolling thickness of sheet material that makes of the first passage and reduce 6%, sheet material after cold rolling is carried out to process annealing processing, process annealing temperature is 600 ℃, the process annealing time is 6 hours, sheet material after annealing is carried out to the cold rolling thickness of sheet material that makes again and reduce 6%, repeat process annealing and cold rolling step, until make sheet material meet the requirements of size;
(6) sheet material is carried out to quench treatment, sheet material is reached to 940 ℃ of quenching temperatures with the temperature rise rate of 120 ℃/h and carry out Water Quenching;
(7) sheet material after quenching is heated to 470 ℃, is incubated 9 hours, be then cooled to 390 ℃ of insulations 5 hours,
(8) after thermal treatment, plate surface is processed, first select many ribs type 250 order emergies to carry out surface coarsening processing, adopt again alkaline hydrated oxide 83%, sequestrant 6%, ethylene glycol 4%, nickelous chloride 1%, ammonium chloride 1%, the hot solution of the surface active agent composition of trihydroxybenzene 5% is carried out activation treatment to the titanium alloy plate surface after processing, and it is sintering metal that the sheet material after activation is carried out to hot spraying WC; WC is that cermet particles size is 400 μ m, and by spray gun, making WC is that sintering metal is deposited as wear-resistant coating on sheet material, and WC is that sintering metal composition is: 23.3 parts of WC, and 12 parts of Ni, 5 parts of Fe, 5.8 parts of Mo, 3.2 parts of Zn,
(9) after plate surface is processed, sheet material is heated to 870 ℃, is incubated 4 hours, then with 80 ℃/h, be cooled to 430 ℃ of insulations 7 hours, with 15 ℃/h, be cooled to 280 ℃ of insulations 6 hours again, after cool to room temperature with the furnace and obtain final titanium alloy plate.
Claims (8)
1. a titanium base alloy preparation of plates method, it is characterized in that: each constituent mass percentage composition of described alloy is: Ni 8-9%, Al 1-2%, Zn 0.7-0.8%, Nb 0.4-0.5%, V 0.6-0.7%, Mo 0.3-0.4%, Bi 0.6-0.7%, Mg 0.1-0.2%, Si 0.7-0.8%, Sn 0.1-0.2%, Co 0.07-0.08%, Cr 0.04-0.05%, Ta 0.02-0.03%, Ca 0.07-0.08%, Y 0.05-0.06%, surplus is titanium and inevitable nonmetal inclusion
Said method comprising the steps of:
(1) according to titanium base alloy component, prepare burden and batch mixing, and be pressed into block electrode, adopt vacuum consumable electrode arc furnace to carry out melting, then cast alloy cast ingot,
(2) above-mentioned alloy cast ingot is carried out to homogenizing annealing processing, first alloy cast ingot is heated to 1030 ℃, soaking time is 16 hours; After be cooled to 900 ℃, soaking time is 6 hours; Afterwards with 100 ℃/h of slow coolings to room temperature,
(3) the above-mentioned alloy cast ingot carrying out after homogenizing annealing is forged, initial forging temperature is that 930 ℃, final forging temperature are 890 ℃, and after forging, alloy cast ingot, at 850 ℃, is incubated 6 hours;
(4) alloy cast ingot after forging is carried out to hot rolling, 850 ℃ of hot-rolled temperatures, pass deformation 15%, total deformation is greater than 70%, and after hot rolling, air cooling, to room temperature, carries out 740 ℃ of stress relief annealings to sheet material afterwards, is incubated 8 hours,
(5) cold rolling: the oxide film of first removing plate surface after hot rolling, then sheet material is carried out to the cold rolling thickness of sheet material that makes of the first passage and reduce 6%, sheet material after cold rolling is carried out to process annealing processing, process annealing temperature is 600 ℃, the process annealing time is insulation 6 hours, sheet material after annealing is carried out to the cold rolling thickness of sheet material that makes again and reduce 6%, repeat process annealing and cold rolling step, until make sheet material meet the requirements of size;
(6) sheet material is carried out to quench treatment, sheet material is reached to 940 ℃ of quenching temperatures with the temperature rise rate of 120 ℃/h and carry out Water Quenching;
(7) sheet material after quenching is heated to 470 ℃, is incubated 9 hours, be then cooled to 390 ℃ of insulations 5 hours,
(8) after thermal treatment, plate surface is processed, first select many ribs type 250 order emergies to carry out surface coarsening processing, adopt again alkaline hydrated oxide 83%, sequestrant 6%, ethylene glycol 4%, nickelous chloride 1%, ammonium chloride 1%, the hot solution of the surface active agent composition of trihydroxybenzene 5% is carried out activation treatment to the titanium alloy plate surface after processing, and it is sintering metal that the sheet material after activation is carried out to hot spraying WC; WC is that cermet particles size is 400 μ m, and by spray gun, making WC is that sintering metal is deposited as wear-resistant coating on sheet material, and WC is that sintering metal composition is: WC 23-24 part, and Ni 11-15 part, 5 parts of Fe, Mo 5-6 part, Zn 3-4 part,
(9) after plate surface is processed, sheet material is heated to 870 ℃, is incubated 4 hours, then with 80 ℃/h, be cooled to 430 ℃ of insulations 7 hours, with 15 ℃/h, be cooled to 280 ℃ of insulations 6 hours again, after cool to room temperature with the furnace and obtain final titanium alloy plate.
2. titanium base alloy preparation of plates method as claimed in claim 1, each constituent mass percentage composition of described alloy is: Ni 8%, Al 1%, Zn 0.7%, Nb 0.4%, V 0.6%, Mo 0.3%, Bi 0.6%, Mg 0.1%, Si 0.7%, Sn 0.1%, Co 0.07%, Cr 0.04%, Ta 0.02%, Ca 0.07%, Y 0.05%, surplus is titanium and inevitable nonmetal inclusion.
3. titanium base alloy preparation of plates method as claimed in claim 1, each constituent mass percentage composition of described alloy is: Ni 9%, Al 2%, Zn 0.8%, Nb 0.5%, V 0.7%, Mo 0.4%, Bi 0.7%, Mg 0.2%, Si 0.8%, Sn 0.2%, Co 0.08%, Cr 0.05%, Ta 0.03%, Ca 0.08%, Y 0.06%, surplus is titanium and inevitable nonmetal inclusion.
4. titanium base alloy preparation of plates method as claimed in claim 1, each constituent mass percentage composition of described alloy is: Ni 8.5%, Al 1.5%, Zn 0.75%, Nb 0.45%, V 0.65%, Mo 0.35%, Bi 0.65%, Mg 0.15%, Si 0.75%, Sn 0.15%, Co 0.075%, Cr 0.045%, Ta 0.025%, Ca 0.075%, Y 0.055%, surplus is titanium and inevitable nonmetal inclusion.
5. titanium base alloy preparation of plates method as claimed in claim 1, each constituent mass percentage composition of described alloy is: Ni 8.3%, Al 1.2%, Zn 0.73%, Nb 0.47%, V 0.68%, Mo 0.39%, Bi 0.64%, Mg 0.16%, Si 0.73%, Sn 0.16%, Co 0.078%, Cr 0.044%, Ta 0.023%, Ca 0.077%, Y 0.056%, surplus is titanium and inevitable nonmetal inclusion.
6. titanium base alloy preparation of plates method as claimed in claim 1, WC is that sintering metal composition is: 23 parts of WC, 11 parts of Ni, 5 parts of Fe, 5 parts of Mo, 3 parts of Zn.
7. titanium base alloy preparation of plates method as claimed in claim 1, WC is that sintering metal composition is: 24 parts of WC, 15 parts of Ni, 5 parts of Fe, 6 parts of Mo, 4 parts of Zn.
8. the titanium base alloy preparation of plates method as described in claim 1-7, WC is that sintering metal composition is: 23.5 parts of WC, 13 parts of Ni, 5 parts of Fe, 5.5 parts of Mo, 3.5 parts of Zn.
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