CN103009008A - Manufacturing process of V-Cr-Ti alloy super-hemispherical shell - Google Patents
Manufacturing process of V-Cr-Ti alloy super-hemispherical shell Download PDFInfo
- Publication number
- CN103009008A CN103009008A CN2012105746391A CN201210574639A CN103009008A CN 103009008 A CN103009008 A CN 103009008A CN 2012105746391 A CN2012105746391 A CN 2012105746391A CN 201210574639 A CN201210574639 A CN 201210574639A CN 103009008 A CN103009008 A CN 103009008A
- Authority
- CN
- China
- Prior art keywords
- temperature
- hemispherical shell
- alloy
- super
- manufacturing process
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Forging (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention relates to a manufacturing process of a V-Cr-Ti alloy super-hemispherical shell. The V-Cr-Ti alloy super-hemispherical shell mainly comprises the following components by weight percent: 4-5% of chrome, 4-5% of titanium and the balance being vanadium and unavoidable impurities. The manufacturing process comprises the following steps that: the spherical shell blank prefabricated by melting the component powder is subjected to hot isostatic pressing at a temperature of 1000 to 1200 DEG C, and heated at a temperature of 900 to 1200 DEG C for 0.5 to 1 hour, and then the forging molding of the super-hemispherical shell is carried out by using a 0.75 tons-2 tons free forging hammer; and the super-hemispherical shell is subjected to heat treatment at a temperature of 800 to 1100 DEG C for 0.5 to 5 hours, and is cooled at a cooling rate of 50-100 DEG C / hour and annealed at a temperature of 600 to 700 DEG C. The super-hemispherical shell prepared by the process has low activation properties and excellent high temperature strength under neutron irradiation conditions, and also has good resistance to radiation mutagenesis expansion and radiation damage, good dimensional stability, high thermal conductivity, lower elastic modulus, low biohazard, good creep resistance, good workability and the like.
Description
Technical field
The present invention relates to the alloy manufacture method, specifically refer to the super hemisphere manufacturing process of a kind of vanadium alloy.
Background technology
Vanadium alloy is good fusion reactor structural material, compares with other structural metallic materials, and the most significant advantage of vanadium alloy is its low activation characteristic under the neutron irradiation condition and good elevated temperature strength performance.The characteristic of vanadium-base alloy has determined that it has preferably application prospect in some specific environment, and vanadium-base alloy is mainly used in the fields such as aviation, national defence, nuclear fusion and hot environment at present.
As far back as the sixties in 20th century, the external research work that has just begun vanadium alloy, until the nineties in 20th century, along with to fusion reactor with the further investigation of material with for satisfying the specific (special) requirements in scientific research and some fields, the U.S., Russia, European Union and Japan have carried out a large amount of systematic research work to vanadium-base alloy.China is to the research of vanadium with use and mainly concentrate on steel and iron industry for a long time, is just to begin recent years to the research of vanadium-base alloy.Along with the raising of development in science and technology to material performance requirement, various countries' material researcher is more and more paid attention to vanadium alloy, generally believes that now V-(4-5) Cr-(4-5) Ti alloy is most important candidate material.
Along with the continuous increase of the mankind to energy demand, and the day by day minimizing of coal, oil, natural gas equal energy source reserves, nuclear energy will be brought into play more significantly effect.The construction of nuclear reactor is to solve one of Important Action of energy issue of world.The V-Cr-Ti alloy is important fusion nucleus reactor candidate structure material, has the performances such as good low activation characteristic, elevated temperature strength, anti-liquid metal corrosion, anti-neutron irradiation swelling.Therefore, this alloy receives much concern in the isostructural design of the first wall, covering and divertor of fusion nucleus reactor.
At present, domestic many units are developing the V-5Cr-5Ti alloy for fusion nucleus reactor cladding structure material, generally be the technique that adopts electronic torch melting, make first ingot casting and be reprocessed into spherical shell, the spherical shell of preparation does not only reach the performance indications of requirement but also has wasted material like this.More some unit directly buys bar processing preparation V-5Cr-5Ti spherical shell, and this kind method waste of material is serious, and the performance of material can't ensure.
Summary of the invention
Technical problem to be solved by this invention be the present situation for prior art provide a kind of have good radioresistance mutagenesis expansion and damage, good dimensional stability, high thermal conductivity, lower thermal coefficient of expansion, lower elastic modelling quantity, preferably creep-resistant property, good processing characteristics, have good compatibility, the security that has again excellent low biohazard simultaneously and the super hemispherical Shell manufacturing process of V-Cr-Ti alloy of environmental protection characteristic with liquid lithium.
The present invention solves the problems of the technologies described above the technical scheme that adopts: the super hemispherical Shell manufacturing process of this a kind of V-Cr-Ti alloy is characterized in that comprising the steps:
Chromium powder, titanium valve and the vanadium powder of crossing 200 mesh sieves are mixed in ball mill, mixed alloy powder is put into mould be pressed into the spherical shell blank, then this spherical shell blank is behind hip moulding under 1000～1200 ℃ of temperature, die-forging forming under 900～1200 ℃ of temperature again, under 800～1100 ℃ of temperature, carry out again heat treatment in 0.5～5 hour, then cool off with 50～100 ℃/hour cooling velocity, under 600～700 ℃ temperature, anneal at last, namely obtain the super hemispherical Shell of V-Cr-Ti alloy;
The super hemispherical Shell of described V-Cr-Ti alloy contains the titanium of 4-5wt% chromium, 4-5wt% and the vanadium of surplus, and the content of inevitable impurity is less than or equal to 0.1wt%.
Preferably, the lubricant that uses in the described die-forging forming is 80% oil base graphite and 20% zinc stearate.
In above-mentioned each scheme, described mould comprises bed die and can be contained in the interior drift of bed die; It is the H13 die steel material preparation of 50-55 that described drift and described bed die all adopt hardness HRC.
Among the existing preparation method, the V-Cr-Ti alloy at high temperature, the C in the alloy, N and O interstitial impurity atom and Ti interact strong, form Ti-CON type precipitated phase, affect the performance of alloy; And through the V-4Cr-4Ti of solution treatment alloy, the tiny precipitated phase that the height of formation disperse distributes when 600～700 ℃ of annealing in the time of reinforced alloys, can fall low-alloyed plasticity.
And the present invention adopts hot forging technique to prepare the V-5Cr-5Ti spherical shell, test performance after the heat treatment, Rm=500Mpa, ReL=380Mpa, A=28%.Reach the serviceability of product requirement, and this preparation method has market popularization value, will have a tremendous social and economic benefits after the popularization.
Description of drawings
Fig. 1 is the employed vanadium alloy spherical shell of embodiment of the invention die-forging forming mould.
The specific embodiment
Embodiment is described in further detail the present invention below in conjunction with accompanying drawing.
Its technological process of production method is as follows:
Batching-batch mixing-high temperature insostatic pressing (HIP)-heating-die forging-solution treatment-annealing-finished product.
Detailed process is: press ingredient composition shown in the table 1, fully mix in ball mill, each element uniform particles is distributed.As shown in Figure 1, the powder that mixes is joined in the die cavity of bed die 2, cooperate with drift 1 and to be pressed into prefabricated spherical shell blank 3, should under 1200 ℃ of temperature, carry out high temperature insostatic pressing (HIP) by prefabricated spherical shell blank, and then under 1100 ℃ of temperature, carry out die-forging forming, after carrying out heat treatment in 5 hours under 1000 ℃ of temperature, cool off with 100 ℃/hour cooling velocity again, under 650 ℃ temperature, anneal at last, make the spherical shell finished product.
Performance to this spherical shell detects, and testing result is as shown in table 2.
Its technological process of production method is as follows:
Batching-batch mixing-high temperature insostatic pressing (HIP)-heating-die forging-solution treatment-annealing-finished product.
Detailed process is: press ingredient composition shown in the table 1, fully mix in ball mill, each element uniform particles is distributed.As shown in Figure 1, the powder that mixes is joined in the die cavity of bed die 2, cooperate with drift 1 and to be pressed into prefabricated spherical shell blank 3, be pressed into prefabricated spherical shell behind the batch mixing, the prefabricated spherical shell blank of the powder metallurgy of mentioned component is carried out high temperature insostatic pressing (HIP) under 1100 ℃ of temperature, under 1100 ℃ of temperature, carry out die-forging forming, under 900 ℃ of temperature, carry out again heat treatment in 5 hours, cooling velocity with 80 ℃/hour is cooled off, and anneals under 680 ℃ temperature, makes finished product.
Its technological process of production method is as follows:
Batching-batch mixing-high temperature insostatic pressing (HIP)-heating-die forging-solution treatment-annealing-finished product.
Detailed process is: press ingredient composition shown in the table 1, fully mix in ball mill, each element uniform particles is distributed.As shown in Figure 1, the powder that mixes is joined in the die cavity of bed die 2, cooperate with drift 1 and to be pressed into prefabricated spherical shell blank 3, be pressed into prefabricated spherical shell behind the batch mixing, the prefabricated spherical shell blank of the powder metallurgy of mentioned component is carried out high temperature insostatic pressing (HIP) under 1200 ℃ of temperature, under 1100 ℃ of temperature, carry out die-forging forming, under 850 ℃ of temperature, carry out again heat treatment in 5 hours, to cool off less than 100 ℃/hour cooling velocity, under 700 ℃ temperature, anneal, make finished product.
Embodiment 4
Its technological process of production method is as follows:
Batching-batch mixing-high temperature insostatic pressing (HIP)-heating-die forging-solution treatment-annealing-finished product.
Detailed process is: press ingredient composition shown in the table 1, fully mix in ball mill, each element uniform particles is distributed.As shown in Figure 1, the powder that mixes is joined in the die cavity of bed die 2, cooperate with drift 1 and to be pressed into prefabricated spherical shell blank 3, be pressed into prefabricated spherical shell behind the batch mixing, the prefabricated spherical shell blank of the powder metallurgy of mentioned component is carried out high temperature insostatic pressing (HIP) under 1200 ℃ of temperature, under 1100 ℃ of temperature, carry out die-forging forming, under 950 ℃ of temperature, carry out again heat treatment in 5 hours, cooling velocity with 50 ℃/hour is cooled off, and anneals under 700 ℃ temperature, makes finished product.
The one-tenth of V-Cr-Ti alloy is grouped into (wt%) among each embodiment of table 1
| Embodiment | Cr | Ti | V |
| |
4.0 | 4.0 | |
| Embodiment | |||
| 2 | 4.2 | 4.2 | |
| Embodiment | |||
| 3 | 4.5 | 4.5 | Surplus |
| Embodiment 4 | 5 | 5 | Surplus |
Average mechanical property after the vanadium alloy annealing of embodiment 1 to 4 is as shown in table 2.
The mechanical property of table 2V-Cr-Ti alloy
| Embodiment | Tensile strength/MPa | Yield strength/MPa | Percentage elongation/% |
| |
450 | 350 | 35 |
| |
460 | 360 | 32 |
| |
480 | 370 | 30 |
| Embodiment 4 | 500 | 380 | 28 |
| Comparative Examples | 450 | 350 | 25 |
Comparative Examples is the V-5Cr-5Ti alloy that U.S. Argonne National Laboratory adopts electron beam founding preparation.
Can be learnt by table 2, the prepared super hemispherical Shell of V-Cr-Ti alloy of various embodiments of the present invention has good radioresistance mutagenesis expansion and Antiradiation injury, good dimensional stability, high thermal conductivity, lower thermal coefficient of expansion, lower elastic modelling quantity, preferably creep-resistant property, good processing characteristics, has again security and the environmental protection characteristic of excellent low biohazard simultaneously.
Claims (3)
1. the super hemispherical Shell manufacturing process of V-Cr-Ti alloy is characterized in that comprising the steps:
Chromium powder, titanium valve and the vanadium powder of crossing 200 mesh sieves are mixed in ball mill, mixed alloy powder is put into mould be pressed into the spherical shell blank, then this spherical shell blank is behind hip moulding under 1000～1200 ℃ of temperature, die-forging forming under 900～1200 ℃ of temperature again, under 800～1100 ℃ of temperature, carry out again heat treatment in 0.5～5 hour, then cool off with 50～100 ℃/hour cooling velocity, under 600～700 ℃ temperature, anneal at last, namely obtain the super hemispherical Shell of V-Cr-Ti alloy;
The super hemispherical Shell of described V-Cr-Ti alloy contains the titanium of 4-5wt% chromium, 4-5wt% and the vanadium of surplus, and the content of inevitable impurity is less than or equal to 0.1wt%.
2. the super hemispherical Shell manufacturing process of vanadium alloy according to claim 1, the lubricant that its feature is used in described die-forging forming is 80% oil base graphite and 20% zinc stearate.
3. the super hemispherical Shell manufacturing process of vanadium alloy according to claim 1 and 2 is characterized in that described mould comprises bed die and can be contained in the interior drift of bed die; It is the H13 die steel material preparation of 50-55 that described drift and described bed die all adopt hardness HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105746391A CN103009008A (en) | 2012-12-25 | 2012-12-25 | Manufacturing process of V-Cr-Ti alloy super-hemispherical shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105746391A CN103009008A (en) | 2012-12-25 | 2012-12-25 | Manufacturing process of V-Cr-Ti alloy super-hemispherical shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103009008A true CN103009008A (en) | 2013-04-03 |
Family
ID=47958412
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012105746391A Pending CN103009008A (en) | 2012-12-25 | 2012-12-25 | Manufacturing process of V-Cr-Ti alloy super-hemispherical shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103009008A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846630A (en) * | 2014-03-26 | 2014-06-11 | 中国工程物理研究院激光聚变研究中心 | Method for manufacturing thin-wall metal semi-spherical shell with seam allowance |
| CN104801936A (en) * | 2015-04-30 | 2015-07-29 | 重庆市天马机械配件厂 | Machining method for automobile spherical shell forging |
| CN105154737A (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 |
| CN105506428A (en) * | 2016-02-03 | 2016-04-20 | 中国工程物理研究院材料研究所 | Novel helium ion sputtering-resistant vanadium alloy and preparation method thereof |
| CN106671427A (en) * | 2017-03-02 | 2017-05-17 | 福建富兰光学有限公司 | Fixture for processing locating of super-hemispherical resin optical ball cover and processing method of fixture |
| CN109338189A (en) * | 2018-11-19 | 2019-02-15 | 中国兵器科学研究院宁波分院 | A kind of preparation method of vanadium tungsten-titanium alloy spherical shell component |
| CN114260402A (en) * | 2021-12-21 | 2022-04-01 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Design method and forging method of large-diameter thin-wall spherical shell type integral die forging |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3674470A (en) * | 1968-08-08 | 1972-07-04 | Metallgesellschaft Ag | Vanadium base alloys containing niobium and titanium |
| JPH0651079A (en) * | 1992-07-29 | 1994-02-25 | Nippon Nuclear Fuel Dev Co Ltd | Nuclear reactor member of zr-base alloy |
| EP0921207A1 (en) * | 1997-11-05 | 1999-06-09 | United Technologies Corporation | Method for improving creep properties of titanium alloys |
| CN101239395A (en) * | 2008-03-12 | 2008-08-13 | 贵州钛易科技发展有限责任公司 | Powder metallurgy method for preparing high-density complicated shape titanium alloy product |
| CN102220519A (en) * | 2011-06-02 | 2011-10-19 | 苏州热工研究院有限公司 | Zirconium alloy used as structural material of nuclear pressurized water reactor |
| RU2445400C1 (en) * | 2010-08-09 | 2012-03-20 | Государственное образовательное учреждение высшего профессионального образования "Томский государственный университет" (ТГУ) | TREATMENT METHOD OF VANADIUM-BASED ALLOYS OF V-4Ti-4Cr SYSTEM |
| 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 |
| CN102773489A (en) * | 2012-07-30 | 2012-11-14 | 四川材料与工艺研究所 | Method for preparing high-purity superfine vanadium, chromium and titanium mixed powder |
-
2012
- 2012-12-25 CN CN2012105746391A patent/CN103009008A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3674470A (en) * | 1968-08-08 | 1972-07-04 | Metallgesellschaft Ag | Vanadium base alloys containing niobium and titanium |
| JPH0651079A (en) * | 1992-07-29 | 1994-02-25 | Nippon Nuclear Fuel Dev Co Ltd | Nuclear reactor member of zr-base alloy |
| EP0921207A1 (en) * | 1997-11-05 | 1999-06-09 | United Technologies Corporation | Method for improving creep properties of titanium alloys |
| CN101239395A (en) * | 2008-03-12 | 2008-08-13 | 贵州钛易科技发展有限责任公司 | Powder metallurgy method for preparing high-density complicated shape titanium alloy product |
| RU2445400C1 (en) * | 2010-08-09 | 2012-03-20 | Государственное образовательное учреждение высшего профессионального образования "Томский государственный университет" (ТГУ) | TREATMENT METHOD OF VANADIUM-BASED ALLOYS OF V-4Ti-4Cr SYSTEM |
| CN102220519A (en) * | 2011-06-02 | 2011-10-19 | 苏州热工研究院有限公司 | Zirconium alloy used as structural material of nuclear pressurized water reactor |
| 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 |
| CN102773489A (en) * | 2012-07-30 | 2012-11-14 | 四川材料与工艺研究所 | Method for preparing high-purity superfine vanadium, chromium and titanium mixed powder |
Non-Patent Citations (2)
| Title |
|---|
| *** 等: "V-5Cr-5Ti合金电弧熔炼制备技术", 《特种铸造及有色合金》, vol. 31, no. 5, 31 December 2011 (2011-12-31), pages 410 - 412 * |
| 陈勇 等: "钒合金的沉淀析出行为和时效强化", 《稀有金属》, vol. 30, no. 3, 30 June 2006 (2006-06-30), pages 295 - 299 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103846630A (en) * | 2014-03-26 | 2014-06-11 | 中国工程物理研究院激光聚变研究中心 | Method for manufacturing thin-wall metal semi-spherical shell with seam allowance |
| CN103846630B (en) * | 2014-03-26 | 2016-04-06 | 中国工程物理研究院激光聚变研究中心 | A kind of thin walled metallic materials hemispherical Shell manufacture method with seam |
| CN104801936A (en) * | 2015-04-30 | 2015-07-29 | 重庆市天马机械配件厂 | Machining method for automobile spherical shell forging |
| CN105154737A (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 |
| CN105506428A (en) * | 2016-02-03 | 2016-04-20 | 中国工程物理研究院材料研究所 | Novel helium ion sputtering-resistant vanadium alloy and preparation method thereof |
| CN106671427A (en) * | 2017-03-02 | 2017-05-17 | 福建富兰光学有限公司 | Fixture for processing locating of super-hemispherical resin optical ball cover and processing method of fixture |
| CN106671427B (en) * | 2017-03-02 | 2023-02-14 | 福建富兰光学股份有限公司 | Fixture and method for machining and positioning hyper-hemispherical resin optical spherical cover |
| CN109338189A (en) * | 2018-11-19 | 2019-02-15 | 中国兵器科学研究院宁波分院 | A kind of preparation method of vanadium tungsten-titanium alloy spherical shell component |
| CN114260402A (en) * | 2021-12-21 | 2022-04-01 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Design method and forging method of large-diameter thin-wall spherical shell type integral die forging |
| CN114260402B (en) * | 2021-12-21 | 2023-11-28 | 中国第二重型机械集团德阳万航模锻有限责任公司 | Design method and forging method of large-diameter thin-wall spherical shell type integral die forging |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103009008A (en) | Manufacturing process of V-Cr-Ti alloy super-hemispherical shell | |
| CN108866417B (en) | High-strength corrosion-resistant medium-entropy alloy and preparation method thereof | |
| CN103173698B (en) | Dispersed precipitated phase strengthened austenitic stainless steel with high Cr and high Ni and thermal processing method | |
| CN114086049B (en) | 2.0GPa grade CoCrNi-based medium entropy alloy with ultrahigh yield strength and plasticity and preparation method thereof | |
| CN107739865A (en) | A kind of high intensity, high-modulus in-situ Al-base composition and preparation method thereof | |
| CN107858558B (en) | A kind of Superplastic Titanium Alloys plate and preparation method thereof | |
| CN109811116B (en) | Preparation method of accident-resistant FeCrAl-based alloy nanocrystalline material for cladding | |
| CN106521240B (en) | A kind of high tough zircaloy and preparation method thereof | |
| CN102719642A (en) | Production process of high-strength high-toughness GH2132 rod/wire material | |
| CN101935776B (en) | Beta titanium alloy material and preparation method thereof | |
| CN104862529B (en) | A kind of superelevation strong high-ductility titanium alloy | |
| CN105112727A (en) | Fused salt corrosion resistant nickel-based deformable high-temperature alloy and preparation method thereof | |
| CN103480975A (en) | Manufacturing method of nuclear-grade austenitic stainless steel welding wire | |
| CN103114224B (en) | Multi-component alloy composite reinforced high-strength titanium alloy and preparation method thereof | |
| CN109794613A (en) | A kind of preparation method of nanometer of ZrC enhancing FeCrAl alloy | |
| CN107779670A (en) | A kind of high precision titanium sheet alloy and preparation method thereof | |
| Zhang et al. | Influence of deformation parameters and network structure to the microstructure evolution and flow stress of TiBw/Ti64 composite | |
| CN112662912A (en) | Ti-V-Mo-Zr-Cr-Al series high-strength metastable beta titanium alloy and preparation method thereof | |
| CN103143709B (en) | Method for manufacturing TiAl intermetallic compound component based on Ti elemental powder and Al elemental powder | |
| CN104745880A (en) | High-density kinetic energy ultra-high-strength tungsten-nickel heat-resisting alloy and preparation method thereof | |
| CN102409258A (en) | Boron-containing high strength hydrogen embrittlement resistant alloy and structural homogeneity control method thereof | |
| CN105088117A (en) | Treatment method for improving comprehensive performances of Cu-Fe-C complex phase copper alloy | |
| CN102230100B (en) | Method for preparing Ti-Nb-Zr-Sn alloy by using powder metallurgical process | |
| CN105935861A (en) | Preparing method for high-strength plastic austenitic stainless steel cap screw forging for nuclear power | |
| CN103537674A (en) | Powder metallurgy spring steel material and manufacturing method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130403 |