CN109338189A - A kind of preparation method of vanadium tungsten-titanium alloy spherical shell component - Google Patents
A kind of preparation method of vanadium tungsten-titanium alloy spherical shell component Download PDFInfo
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- CN109338189A CN109338189A CN201811374964.7A CN201811374964A CN109338189A CN 109338189 A CN109338189 A CN 109338189A CN 201811374964 A CN201811374964 A CN 201811374964A CN 109338189 A CN109338189 A CN 109338189A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/02—Alloys based on vanadium, niobium, or tantalum
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/10—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of articles with cavities or holes, not otherwise provided for in the preceding subgroups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
- B22F2003/175—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging by hot forging, below sintering temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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Abstract
A kind of preparation method of vanadium tungsten-titanium alloy spherical shell component, ingredient: tungsten: 6-7%, titanium: 4-5%, remaining is vanadium, and tungsten powder, titanium valve and vanadium powder ingredient are sieved, it is added to after mixing in ball mill in the type chamber of bed die, is pressed into prefabricated spherical shell blank with formed punch cooperation；By prefabricated spherical shell blank, hip moulding is heat-treated in 900~1100 DEG C of temperature die-forging formings then at 900~1100 DEG C for temperature 0.5~5 hour at a temperature of 1000~1200 DEG C；Then cooling with 50~100 DEG C/h of cooling velocity, it is tempered at last 600~700 DEG C, room temperature is come out of the stove, and machining obtains finished product.Present invention process is reasonable, stock utilization is high, and the vanadium tungsten-titanium alloy spherical shell component of preparation has safety and the environmental protection characteristic of excellent low biohazard with good anti-radiation mutagenesis expansion and damage, dimensional stability, high thermal conductivity, lower thermal expansion coefficient, lower elasticity modulus, preferable creep-resistant property, excellent machinability and liquid lithium again with good compatibility, simultaneously.
Description
Technical field
The present invention relates to a kind of manufacturing process of spherical shell component more particularly to a kind of preparations of vanadium tungsten-titanium alloy spherical shell component
Method.
Background technique
Vanadium-base alloy is that excellent fusion reactor structural material is compared with other structural metallic materials, vanadium-base alloy
Most significant advantage is its low activation characteristic and excellent elevated temperature strength performance under the conditions of neutron irradiation.In addition, vanadium base closes
Gold also has good anti-radiation mutagenesis expansion and damage, good dimensional stability, high thermal conductivity, lower thermal expansion system
Several, lower elasticity modulus, the safety of low biohazard and environmental protection characteristic, preferable creep-resistant property, good processability
Energy has good compatibility etc. with liquid lithium.The characteristic of vanadium-base alloy determine its in some specific environment have compared with
Good application prospect, vanadium-base alloy is mainly used in the fields such as aviation, national defence, nuclear fusion and hot environment at present.
Early in the 1960s, the external research work begun to vanadium-base alloy, until in the 1990s, with
To the further investigation of fusion reactor material and to meet the particular/special requirement of scientific research and some fields, the U.S., Russia sieve
This, European Union and Japan carried out a large amount of systematic researches to vanadium-base alloy and worked.Research and application of the China to vanadium for a long time
It is concentrated mainly on steel and iron industry, the research to vanadium-base alloy is just to start recent years.As development in science and technology is to material property
It is required that raising, various countries' material researcher increasingly payes attention to vanadium alloy, due to the inherent defect of V-Cr-Ti alloy, such as
Easy to oxidize or oxygen uptake under high temperature causes alloy plasticity and toughness to reduce；It is serious using hydrogen is inhaled in hydrogen environment, cause hydrogen
It is crisp.For the comprehensive performance for overcoming these disadvantages He further increasing vanadium alloy, the method with W for Cr is used, develops vanadium tungsten
Titanium alloy greatly improves the anti-hydrogen embrittlement ability of alloy and further increases its applied at elevated temperature performance.
As the mankind are continuously increased energy demand, the increasingly reduction of the energy reserves such as Yi Jimei, petroleum, natural gas,
Nuclear energy will play more obvious action.The construction of nuclear reactor is one of the important measure for solving energy issue of world.Vanadium alloy
It is important fusion nuclear reactor candidate structure material, has excellent low activation characteristic, elevated temperature strength, resistance to liquid metal rotten
The performances such as erosion, anti-neutron irradiation swelling.Therefore, the alloy is in structures such as the first wall, covering and the divertors of fusion nuclear reactor
Design in be concerned.
Currently, domestic more units are developing the vanadium alloy for fusion nuclear reactor cladding structure material, usually
Using the technique of electron-beam smelting, ingot casting is first made and is reprocessed into spherical shell, the performance that the spherical shell being prepared both had not reached requirement
Index wastes material again.More some units directly buy bar processing and prepare vanadium alloy spherical shell, and such method waste of material is tight
Weight, the performance of material can not ensure.
Summary of the invention
Technical problem to be solved by the invention is to provide the high vanadium tungsten-titanium alloy balls of a kind of rational technology, stock utilization
The preparation method of mould component is prepared using hot-die forging process, and the vanadium tungsten-titanium alloy spherical shell component of preparation, which can reach product, to be wanted
The service performance asked.
The technical scheme of the invention to solve the technical problem is: a kind of preparation of vanadium tungsten-titanium alloy spherical shell component
Method, it is characterised in that the following steps are included:
1) alloying component: tungsten: 6-7%, titanium: 4-5% is designed, remaining is vanadium, and the total content of impurity is not more than 0.1wt%,
Above-mentioned percentage is mass percent；
2) tungsten powder, titanium valve and vanadium powder are subjected to ingredient sieving by said ratio, are uniformly mixed, will mix in the ball mill
The powder bed die that is added to molding die type chamber in, be pressed into prefabricated spherical shell blank with formed punch cooperation；
3) by prefabricated spherical shell blank at a temperature of 1000~1200 DEG C hip moulding, then in 900~1100 DEG C of temperature
Lower die-forging forming is spent, carries out being heat-treated for 0.5~5 hour at a temperature of 900~1100 DEG C；
4) then the spherical shell green body after heat treatment is cooled down with 50~100 DEG C/h of cooling velocity, is finally existed
It is tempered at a temperature of 600~700 DEG C, room temperature is come out of the stove, and V-W-Ti alloying pellet mould component is made in machining.
Further, the sieving of the step 1) is sieved using 200 mesh.
Further, the formed punch material of the molding die of the step 2) is H13 steel, hardness HRC=50-55, bed die material
Material is H13 steel, hardness HRC=50-55.
Finally, needed in the hot forging of the step 3) be added high-temperature lubricant, high-temperature lubricant be 80% oil base graphite+
20% zinc stearate.
Compared with the prior art, the advantages of the present invention are as follows: it is prepared using hot-die forging process, V-W-Ti alloy is in height
Under temperature, C, N and O interstitial impurity atom and Ti interaction in alloy are strong, form Ti-CON type precipitated phase, influence alloy
Performance forms the tiny precipitating of highly dispersed distribution in 600~700 DEG C of tempering for the V-W-Ti alloy through solution treatment
Phase while reinforced alloys, drops low-alloyed plasticity, test performance after heat treatment, Rm=560Mpa, ReL=390Mpa, A=
27%, reach the service performance of product requirement.Preparation method rational technology of the invention, waste of material is few, utilization rate is high, preparation
Vanadium tungsten-titanium alloy spherical shell component there is good anti-radiation mutagenesis expansion and damage, good dimensional stability, high heat transfer
Property, lower thermal expansion coefficient, lower elasticity modulus, preferable creep-resistant property, good processing performance, with liquid lithium have
Safety and the environmental protection characteristic for having good compatibility, there is excellent low biohazard again simultaneously, and the preparation method has
Market popularization value will have a tremendous social and economic benefits after popularization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of molding die provided by the invention.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
Embodiment 1
Its technological process of production method is as follows: ingredient-mixing-hot isostatic pressing-heating-die forging-solution treatment-is returned
Fire-finished product.
Detailed process are as follows: by ingredient composition shown in table 1, tungsten powder, titanium valve and vanadium powder are crossed into 200 meshes, filled in the ball mill
Divide mixing, is uniformly distributed each element particle.As shown in Figure 1, the powder mixed to be added to the type of the bed die 2 of molding die
In chamber, it is pressed into prefabricated spherical shell blank 3 with the cooperation of formed punch 1, wherein formed punch material is H13 steel, hardness HRC=50-55, bed die
Material is H13 steel, hardness HRC=50-55；The prefabricated spherical shell blank is subjected to hot isostatic pressing at a temperature of 1200 DEG C, then
Die-forging forming is carried out at a temperature of 1100 DEG C again, high-temperature lubricant used in hot forging is that 80% oil base graphite+20% is stearic
Sour zinc is cooled down with 100 DEG C/h of cooling velocity, is finally existed after carrying out heat treatment in 5 hours at a temperature of 1000 DEG C
It is tempered at a temperature of 650 DEG C, last room temperature is come out of the stove, and V-W-Ti alloying pellet mould component is made in machining.
The performance of the spherical shell is detected, testing result is as shown in table 2.
Embodiment 2
Its technological process of production method is as follows: ingredient-mixing-hot isostatic pressing-heating-die forging-solution treatment-is returned
Fire-finished product.
Detailed process are as follows: by ingredient composition shown in table 1, tungsten powder, titanium valve and vanadium powder are crossed into 200 meshes, filled in the ball mill
Divide mixing, is uniformly distributed each element particle.As shown in Figure 1, the powder mixed is added in the type chamber of bed die 2, with punching
First 1 cooperation is pressed into prefabricated spherical shell blank 3, and wherein formed punch material is H13 steel, and hardness HRC=50-55, bed die material is H13
Steel, hardness HRC=50-55；Above-mentioned prefabricated spherical shell blank is subjected to hot isostatic pressing at a temperature of 1100 DEG C, in 1100 DEG C of temperature
Lower carry out die-forging forming, high-temperature lubricant used in hot forging is+20% zinc stearate of 80% oil base graphite, then at 900 DEG C
At a temperature of carry out 5 hours be heat-treated, cooled down with 80 DEG C/h of cooling velocity, 680 DEG C at a temperature of be tempered,
Last room temperature is come out of the stove, and V-W-Ti alloying pellet mould component is made in machining.
Embodiment 3
Its technological process of production method is as follows: ingredient-mixing-hot isostatic pressing-heating-die forging-solution treatment-is returned
Fire-finished product.
Detailed process are as follows: by ingredient composition shown in table 1, tungsten powder, titanium valve and vanadium powder are crossed into 200 meshes, filled in the ball mill
Divide mixing, is uniformly distributed each element particle.As shown in Figure 1, the powder mixed is added in the type chamber of bed die 2, with punching
First 1 cooperation is pressed into prefabricated spherical shell blank 3, and wherein formed punch material is H13 steel, and hardness HRC=50-55, bed die material is H13
Steel, hardness HRC=50-55；It is quiet that the prefabricated spherical shell blank of the powder metallurgy of mentioned component is carried out to heat etc. at a temperature of 1200 DEG C
Pressure, carries out die-forging forming at a temperature of 1100 DEG C, and high-temperature lubricant used in hot forging is that 80% oil base graphite+20% is stearic
Sour zinc, carries out being heat-treated for 5 hours at a temperature of 950 DEG C, is cooled down with 50~100 DEG C/h of cooling velocity, 700
It is tempered at a temperature of DEG C, last room temperature is come out of the stove, and V-W-Ti alloying pellet mould component is made in machining.
Embodiment 4
Its technological process of production method is as follows: ingredient-mixing-hot isostatic pressing-heating-die forging-solution treatment-is returned
Fire-finished product.
Detailed process are as follows: by ingredient composition shown in table 1, tungsten powder, titanium valve and vanadium powder are crossed into 200 meshes, filled in the ball mill
Divide mixing, is uniformly distributed each element particle.As shown in Figure 1, the powder mixed is added in the type chamber of bed die 2, with punching
First 1 cooperation is pressed into prefabricated spherical shell blank 3, and wherein 1 material of formed punch is H13 steel, and hardness HRC=50-55,2 material of bed die is
H13 steel, hardness HRC=50-55；The prefabricated spherical shell blank of the powder metallurgy of mentioned component is subjected to heat etc. at a temperature of 1200 DEG C
Static pressure, carries out die-forging forming at a temperature of 1100 DEG C, and high-temperature lubricant used in hot forging is that 80% oil base graphite+20% is hard
Resin acid zinc, carries out being heat-treated for 5 hours at a temperature of 1000 DEG C, is cooled down with 50 DEG C/h of cooling velocity, at 700 DEG C
At a temperature of be tempered, last room temperature is come out of the stove, machining V-W-Ti alloying pellet mould component is made.
Embodiment 5
Its technological process of production method is as follows: ingredient-mixing-hot isostatic pressing-heating-die forging-solution treatment-is returned
Fire-finished product.
Detailed process are as follows: by ingredient composition shown in table 1, tungsten powder, titanium valve and vanadium powder are crossed into 200 meshes, filled in the ball mill
Divide mixing, is uniformly distributed each element particle.As shown in Figure 1, the powder mixed is added in the type chamber of bed die 2, with punching
First 1 cooperation is pressed into prefabricated spherical shell blank 3, and wherein 1 material of formed punch is H13 steel, and hardness HRC=50-55,2 material of bed die is
H13 steel, hardness HRC=50-55；The prefabricated spherical shell blank of the powder metallurgy of mentioned component is subjected to heat etc. at a temperature of 1000 DEG C
Static pressure, carries out die-forging forming at a temperature of 900 DEG C, and high-temperature lubricant used in hot forging is that 80% oil base graphite+20% is hard
Resin acid zinc, carries out being heat-treated for 0.5 hour at a temperature of 1000 DEG C, is cooled down with 50 DEG C/h of cooling velocity, 600
It is tempered at a temperature of DEG C, last room temperature is come out of the stove, and V-W-Ti alloying pellet mould component is made in machining.
V-W-Ti alloy at being grouped as (wt%) in each embodiment of table 1
| Embodiment | W | Ti | V |
| Embodiment 1 | 6.0 | 4.0 | Surplus |
| Embodiment 2 | 6.2 | 4.2 | Surplus |
| Embodiment 3 | 6.5 | 4.5 | Surplus |
| Embodiment 4 | 7.0 | 5.0 | Surplus |
| Embodiment 5 | 6.4 | 4.3 | Surplus |
The average mechanical property tested after the heat treatment of vanadium-base alloy prepared by the present invention, as shown in table 2:
The mechanical property of 2 V-W-Ti alloy of table
Conclusion: the V-W-Ti alloy of preparation of the invention reaches the service performance of product requirement, has good anti-radiation
Mutagenesis expansion and Antiradiation injury, good dimensional stability, high thermal conductivity, lower thermal expansion coefficient, lower elasticity
Modulus, preferable creep-resistant property, good processing performance, while again with the safety and environmental protection of excellent low biohazard
Characteristic.
Claims (4)
1. a kind of preparation method of vanadium tungsten-titanium alloy spherical shell component, it is characterised in that the following steps are included:
1) alloying component: tungsten: 6-7%, titanium: 4-5% is designed, remaining is vanadium, and the total content of impurity is not more than 0.1wt%, above-mentioned
Percentage is mass percent；
2) tungsten powder, titanium valve and vanadium powder are subjected to ingredient sieving by said ratio, are uniformly mixed in the ball mill, the powder that will be mixed
End is added in the type chamber of the bed die of molding die, is pressed into prefabricated spherical shell blank with formed punch cooperation；
3) by prefabricated spherical shell blank at a temperature of 1000~1200 DEG C hip moulding, then at a temperature of 900~1100 DEG C
Die-forging forming, carries out being heat-treated for 0.5~5 hour at a temperature of 900~1100 DEG C；
4) then the spherical shell green body after heat treatment is cooled down with 50~100 DEG C/h of cooling velocity, finally 600~
It is tempered at a temperature of 700 DEG C, room temperature is come out of the stove, and V-W-Ti alloying pellet mould component is made in machining.
2. preparation method according to claim 1, it is characterised in that: the sieving of the step 1) is sieved using 200 mesh.
3. preparation method according to claim 1, it is characterised in that: the formed punch material of the molding die of the step 2) is
H13 steel, hardness HRC=50-55, bed die material are H13 steel, hardness HRC=50-55.
4. preparation method according to claim 1, it is characterised in that: need to be added in the hot forging of the step 3) high gentle
Lubrication prescription, high-temperature lubricant are+20% zinc stearate of 80% oil base graphite, mass percent.
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Citations (5)
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|---|---|---|---|---|
| US3830670A (en) * | 1970-12-18 | 1974-08-20 | Surface Technology Corp | Graded multiphase carburized materials |
| CN102776457A (en) * | 2012-07-30 | 2012-11-14 | 四川材料与工艺研究所 | Method for improving comprehensive mechanical properties of vanadium, chromium and titanium alloy prepared by powder metallurgy by die forging technology |
| CN103009008A (en) * | 2012-12-25 | 2013-04-03 | 中国兵器科学研究院宁波分院 | Manufacturing process of V-Cr-Ti alloy super-hemispherical shell |
| CN105154738A (en) * | 2015-08-24 | 2015-12-16 | 攀钢集团攀枝花钢铁研究院有限公司 | Vanadium, chrome and titanium alloy plate and preparation method thereof |
| CN106435318A (en) * | 2016-11-30 | 2017-02-22 | 中国工程物理研究院材料研究所 | High-strength high-toughness vanadium alloy and preparation method thereof |
-
2018
- 2018-11-19 CN CN201811374964.7A patent/CN109338189A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3830670A (en) * | 1970-12-18 | 1974-08-20 | Surface Technology Corp | Graded multiphase carburized materials |
| CN102776457A (en) * | 2012-07-30 | 2012-11-14 | 四川材料与工艺研究所 | Method for improving comprehensive mechanical properties of vanadium, chromium and titanium alloy prepared by powder metallurgy by die forging technology |
| CN103009008A (en) * | 2012-12-25 | 2013-04-03 | 中国兵器科学研究院宁波分院 | Manufacturing process of V-Cr-Ti alloy super-hemispherical shell |
| CN105154738A (en) * | 2015-08-24 | 2015-12-16 | 攀钢集团攀枝花钢铁研究院有限公司 | Vanadium, chrome and titanium alloy plate and preparation method thereof |
| CN106435318A (en) * | 2016-11-30 | 2017-02-22 | 中国工程物理研究院材料研究所 | High-strength high-toughness vanadium alloy and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| J.M.CHEN ET AL.: "Precipitation behavior in V–6W–4Ti, V–4Ti and V–4Cr–4Ti alloys", 《JOURNAL OF NUCLEAR MATERIALS》 * |
| J.M.CHEN ET AL.: "The development of advanced vanadium alloys for fusion applications", 《JOURNAL OF NUCLEAR MATERIALS》 * |
| 陈勇: "钒合金的沉淀析出行为和时效强化", 《稀有金属》 * |
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Application publication date: 20190215 |