CN105821260A - Aluminum, scandium and zirconium intermediate alloy for aluminum alloy and production method thereof - Google Patents

Aluminum, scandium and zirconium intermediate alloy for aluminum alloy and production method thereof Download PDF

Info

Publication number
CN105821260A
CN105821260A CN201610341298.1A CN201610341298A CN105821260A CN 105821260 A CN105821260 A CN 105821260A CN 201610341298 A CN201610341298 A CN 201610341298A CN 105821260 A CN105821260 A CN 105821260A
Authority
CN
China
Prior art keywords
alloy
aluminum
aluminium
scandium
intermediate alloy
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.)
Granted
Application number
CN201610341298.1A
Other languages
Chinese (zh)
Other versions
CN105821260B (en
Inventor
陈卫平
陈青松
钱晓泰
王晓平
胡双
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUNAN ORIENTAL SCANDIUM INDUSTRY CO LTD
Original Assignee
HUNAN ORIENTAL SCANDIUM INDUSTRY CO LTD
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HUNAN ORIENTAL SCANDIUM INDUSTRY CO LTD filed Critical HUNAN ORIENTAL SCANDIUM INDUSTRY CO LTD
Priority to CN201610341298.1A priority Critical patent/CN105821260B/en
Publication of CN105821260A publication Critical patent/CN105821260A/en
Application granted granted Critical
Publication of CN105821260B publication Critical patent/CN105821260B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/03—Making non-ferrous alloys by melting using master alloys

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The invention discloses an aluminum, scandium and zirconium intermediate alloy for an aluminum alloy and a production method thereof. The aluminum, scandium and zirconium intermediate alloy comprises, by mass, 2% of Sc, 1%-2% of Zr and the balance Al. The aluminum, scandium and zirconium intermediate alloy and the production method have the beneficial effects that an aluminum and scandium intermediate alloy can be replaced with the aluminum, scandium and zirconium intermediate alloy, the production cost is reduced, and the strengthening effect is better after the aluminum, scandium and zirconium intermediate alloy is added into the aluminum alloy.

Description

The aluminium, Seandium, zirconium intermediate alloy of a kind of aluminium alloy and production method thereof
Technical field
The present invention relates to aluminium, Seandium, zirconium intermediate alloy and the production method thereof of a kind of aluminium alloy, belong to aluminum alloy materials manufacture Field.
Background technology
For introducing other metal materials in aluminium alloy casting, conventional feed postition is intermediate alloy, such as Al-10RE, is somebody's turn to do Intermediate alloy uses mixing method production, there is many dystectic compounds, easily cause composition not during use in product Uniformly.Rare earth addition 0.2-0.6% in aluminium alloy, same Zr at 0.01-0.2%, Ti between 0.005-0.1, mistake It is harmful at most.But rare earth metal is active, there is the problem that effect cuts in and out in easy scaling loss, unstable, and its effect is with the side of addition Formula, technology controlling and process have great relation.
It is known that Sc is a kind of preferably Al alloy modification element, in light-high-strength aluminium alloy 7075, adding scandium can Significantly improve strength of alloy, welding, corrosion resisting property.Owing to the price of scandium is high, substantial amounts of use causes cost increase.
Summary of the invention
Present invention solves the technical problem that and be, reducing the use of scandium in aluminium alloy manufacturing process, finding one can part Replace the alterant element of scandium to form intermediate alloy.
The technical scheme is that, it is provided that the aluminium, Seandium, zirconium intermediate alloy of a kind of aluminium alloy, close in the middle of described aluminium, Seandium, zirconium The Zr of the gold Sc and 1-2wt% containing 2wt%, surplus is Al.
Further, the present invention provides the production method of a kind of described aluminium, Seandium, zirconium intermediate alloy, comprises the following steps:
Be 1:(0.1-0.3 by mass ratio) fine aluminium and composite modifier put into stove is heated to fusing, then at 850- It is incubated 20-60 minute at 900 DEG C；Pouring out scum silica frost, molten metal cooling obtains aluminium, Seandium, zirconium intermediate alloy；
In described composite modifier, the quality group of each composition becomes: 10-17%Sc2O3, 5-15%ZrO2, 4-8%NaF, 25-36%KCl, 37-45%NH4F, 2-7%CaCl2。
Further, described fine aluminium is the aluminum that purity is more than 99.8%.
Owing to scandium price is high, while adding scandium, add zirconium, with Zr Substitute For Partial Sc.Research finds adding the same of Sc Time, addition its combination property of Zr is not less than and individually adds scandium, can reduce the dosage of scandium simultaneously, reduces cost, beneficially industry business Change.Research shows that zirconium substitutes scandium 30-50%, and effect is best, and too much zirconium can form thick Al3Zr phase, reduces zirconium effect. The content adding scandium zirconium in aluminum alloy materials is less than 0.3% respectively, if total constituent content exceedes element and adds the upper limit, then Thick nascent Al can be formed3(ScZr) phase, reduces strengthening effect.In aluminium alloy, add scandium zirconium, Al can be formed3(ScZr) Particle, this particle becomes forming core particle, crystal grain thinning, and suppresses recovery and recrystallization to occur, reinforced alloys.Al3(ScZr) it is Spherical shell structure, ball richness scandium, outer layer richness zirconium, compare scandium atom, zirconium atom has lower diffusion coefficient, therefore, Al3(ScZr) Particle compares Al3Sc particle is more stable.In AlZnMgCu high-strength alloy, under high-strength light-weighted requirement, add 0.2% Tensile strength can be risen to 700Mpa from 500Mpa by Sc, 0.1%Zr.Recrystallization intensification T rises to 550 DEG C from 400 DEG C.Material The elevated temperature strength that material has kept, aluminum substitutes steel and is possibly realized.This alloy material is in fields such as Aero-Space, bullet train, automobiles It is used widely.These material alloys all use Sc and add Zr, constitute ScZr alloy complex intensifying.Add AlScZr alloy Compared with being individually added into Al-2Sc and Al-10Zr, the inhomogeneities of composition can be reduced, and advantageously reduce production cost.This Al-2Sc-(1-2) the Zr alloy that open-birth is produced has following features,
Owing to using (ScZr)2O3Mixture, from the Scia of the acid solution extraction that zirconium oxychloride produces, need not separate wherein Impurity zirconium, raw material need not high-purity Sc2O3.And existing AlSc produces and uses High-purity Sc Oxide, AlZr produces and uses K2, there is the defect that price is high in ZrF6.
Production method uses the pre-reaction of fused salt elder generation, makes compound additive, then by aluminium reducing (ScZr) F3, produce Al- 2Sc-(1-2) Zr alloy.ScZr dissolubility in aluminium alloy is little, during content height, easily causes segregation, due to the fact that employing Water cooled mo(u)ld accelerated solidification, the Al of generation3(Sc+Zr) mutually tiny, uniform.In aluminium alloy, add strengthening effect more preferable, overcome The product grains that other non-rapid solidification produces Al-2Sc, Al-10Zr is thick, and spindle uneven components, difference on effect are the most scarce Point.
Alloy production uses graphite crucible, antivacuum stove, fusion temperature T=660～900 DEG C, is incubated T=850～900 DEG C, temperature retention time 0.5h, stir, react as follows: ZrF4+4Al→Al3Zr+AlF3；ScF3+Al→Al2Sc3+AlF.Reduction Sc out, Zr enter in Al solution；Pour out scum silica frost, water-cooled swage ingot casting, obtain in the middle of the binary containing Al-2Sc-(1-2) Zr Alloy.The yield of Sc, Zr is 90%.
Use composite modifier to produce with aluminum reduction method, adjust different molten salt composition proportioning, improve (ScZr)2O3At fused salt In dissolubility, mobility, fused salt fusing point, thus reduce reduction temperature to 850-900 degree, metal yield more than 90%.
The invention has the beneficial effects as follows, this aluminium, Seandium, zirconium intermediate alloy can substitute for scandium bearing master alloy, reduces and produces into This, after adding aluminium, Seandium, zirconium intermediate alloy in aluminium alloy, strengthening effect is more preferable.
Detailed description of the invention
Special instruction: the present invention, for representing simplicity, uses the method for expressing that row is commonly used in the trade.Percent is percent mass Number, in the expression formula of alloy, numeral represents that corresponding composition accounts for the mass percent of alloy, the expression tie element of no numeral Concrete content is unknown, and "-" represents list separator, there is no practical significance；Such as Al-2Sc-1Zr, represent the Sc containing 2% in aluminium alloy With 1% Zr；Al-2Sc-(1-2) Zr represents the Zr of Sc and 1-2wt% in aluminium alloy containing 2wt%.Application by analogy.
Embodiment 1
Al-2Sc-1Zr intermediate alloy and the production method of aluminium alloy thereof, comprise the following steps:
1. raw material uses 45kgSc2O3(containing 5kgZrO2), 13kgZrO2, 15kgNaF, 80kgKCl, 100kgNH4F, 13kgCaCl2.Above-mentioned material is first mixed in plastic tub, is then placed in black-fead crucible.Fusing stove heating, on a T=300 DEG C of left side Right stop 30 points, is warming up to 500 DEG C the most again, is incubated 30 points, stirs, and injects in swage, is cooled to room temperature, is combined Alterant 174kg.
2. upper composite modifier is together put in graphite crucible with 1200kgAl, Al/ composite modifier=1:0.145. Electro-smelting, fusion temperature T=800 DEG C, it is incubated T=850 DEG C, is incubated time zone 1h, stirs.
3. pour out scum silica frost, water-cooled swage ingot casting, obtain the Al intermediate alloy 1228kg containing 2%Sc, 1%Zr.
4. adding in AlZnMg alloy, prepare AlZnMg-0.2Sc-0.1Zr alloy, performance is shown in Table 1
Embodiment 2
Al-2Sc-2Zr intermediate alloy and the production method of aluminium alloy thereof, comprise the following steps:,
1. raw material uses 42kgSc2O3(containing 2kgZrO2), 34kgZrO2, 22kgNaF, 100kgKCl, 145kgNH4F, 17kgCaCl2.Above-mentioned material is first mixed in plastic tub, is then placed in black-fead crucible.Fusing stove heating, on a T=200 DEG C of left side Right stop 1h, is warming up to 600 DEG C the most again, is incubated 30 minutes, stirs, and injects in swage, is cooled to room temperature, is combined Alterant 220kg.
2. above-mentioned composite modifier is together put in graphite crucible with 1200kgAl, Al/ composite modifier=1:0.18. Electro-smelting, fusion temperature T=800 DEG C, it is incubated T=900 DEG C, is incubated time zone 0.5h, stirs,
3. pour out scum silica frost, water-cooled swage ingot casting, obtain the Al intermediate alloy 1236kg containing 2%Sc, 2%Zr.
4. adding in AlZnMg alloy, prepare AlZnMg-0.1Sc-0.1Zr alloy, performance is shown in Table 1.
Comparative example
Al-2Sc intermediate alloy and the production method of aluminium alloy thereof, comprise the following steps:
1. raw material uses 40kgSc2O3, 15kgNaF, 60kgKCl, 80kgNH4F, 15kgCaCl2.Above-mentioned material is first being moulded Feed basin mixes, is then placed in black-fead crucible.Fusing stove heating, stops 2h at about T=300 DEG C, is warming up to 600 the most again DEG C, it is incubated 60 minutes, stirs, inject in swage, be cooled to room temperature, obtain composite modifier 150kg.
2. above-mentioned composite modifier is together put in graphite crucible with 1000kgAl, Al/ composite modifier=1:0.15. Electro-smelting, fusion temperature T=800 DEG C, it is incubated T=900 DEG C, is incubated time zone 0.5h, stirs
3. pour out scum silica frost, water-cooled swage ingot casting, obtain the scandium bearing master alloy 1020kg containing 2%Sc.
4. adding in AlZnMg alloy, the alloy property obtained by AlZnMg-0.2Sc is shown in Table 1.
Table 1

Claims (3)

1. the aluminium, Seandium, zirconium intermediate alloy of an aluminium alloy, it is characterised in that the quality group of described aluminium, Seandium, zirconium intermediate alloy becomes: The Zr of Sc and 1-2wt% of 2wt%, surplus is Al.
2. the production method of an aluminium, Seandium, zirconium intermediate alloy as claimed in claim 1, it is characterised in that comprise the following steps:
Be 1:(0.1-0.3 by mass ratio) fine aluminium and composite modifier put into stove is heated to fusing, then at 850-900 DEG C Lower insulation 20-60 minute；Pouring out scum silica frost, molten metal cooling obtains aluminium, Seandium, zirconium intermediate alloy；
In described composite modifier, the quality group of each composition becomes:
Sc2O3 10-17%
ZrO2 5-15%
NaF 4-8%
KCl 25-36%
NH4F 37-45%
CaCl2 2-7%。
3. production method as claimed in claim 2, it is characterised in that described fine aluminium is the aluminum that purity is more than 99.8%.
CN201610341298.1A 2016-05-20 2016-05-20 The aluminium, Seandium, zirconium intermediate alloy and its production method of a kind of aluminium alloy Active CN105821260B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610341298.1A CN105821260B (en) 2016-05-20 2016-05-20 The aluminium, Seandium, zirconium intermediate alloy and its production method of a kind of aluminium alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610341298.1A CN105821260B (en) 2016-05-20 2016-05-20 The aluminium, Seandium, zirconium intermediate alloy and its production method of a kind of aluminium alloy

Publications (2)

Publication Number Publication Date
CN105821260A true CN105821260A (en) 2016-08-03
CN105821260B CN105821260B (en) 2017-06-16

Family

ID=56530945

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610341298.1A Active CN105821260B (en) 2016-05-20 2016-05-20 The aluminium, Seandium, zirconium intermediate alloy and its production method of a kind of aluminium alloy

Country Status (1)

Country Link
CN (1) CN105821260B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107794419A (en) * 2017-06-13 2018-03-13 湖南东方钪业股份有限公司 A kind of aluminium alloy polynary intermediate alloy and preparation method thereof
CN110004332A (en) * 2019-05-23 2019-07-12 河北工业大学 Al3Sc-Al3The preparation method of Zr/Al composite material inovulant
CN110129596A (en) * 2019-05-23 2019-08-16 河北工业大学 Thin ribbon shaped nanometer Al3The preparation method of (Sc, Zr)/Al composite inoculant
CN110423921A (en) * 2019-09-12 2019-11-08 中国恩菲工程技术有限公司 A kind of ScAl3/ Al base composite inoculant, preparation method and application
CN111363934A (en) * 2020-04-08 2020-07-03 中国恩菲工程技术有限公司 Magnesium-scandium alloy and preparation method thereof
CN112746191A (en) * 2020-12-30 2021-05-04 贵州华科铝材料工程技术研究有限公司 Preparation method of mixed Sc-Zr aluminum alloy
CN115896551A (en) * 2022-11-17 2023-04-04 山东省科学院新材料研究所 Aluminum-scandium-zirconium intermediate alloy and preparation method thereof
CN115990669A (en) * 2023-03-24 2023-04-21 湖南东方钪业股份有限公司 Scandium-aluminum alloy powder for additive manufacturing and preparation method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1514043A (en) * 2003-08-21 2004-07-21 中国铝业股份有限公司 Method of producing aluminium, Seandium, zirconium multielement alloy by electrolysis
CN1699609A (en) * 2005-05-19 2005-11-23 昆明理工大学 Process for preparing aluminium-scandium intermediate alloy from scandium-containing mineral by one-step method
CN102586655A (en) * 2012-03-27 2012-07-18 郑州大学 Process for strengthening Al-Sc-Zr conduction alloy and optimizing conductivity
RU2497966C1 (en) * 2012-05-18 2013-11-10 Закрытое акционерное общество "Военно-промышленная инвестиционная группа "ВИЛС" Method for obtaining ingots from aluminium alloys with non-dendrite structure
CN105274397A (en) * 2015-10-23 2016-01-27 东北大学 High-strength super-heat-resistant aluminum-alloy conductor and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1514043A (en) * 2003-08-21 2004-07-21 中国铝业股份有限公司 Method of producing aluminium, Seandium, zirconium multielement alloy by electrolysis
CN1699609A (en) * 2005-05-19 2005-11-23 昆明理工大学 Process for preparing aluminium-scandium intermediate alloy from scandium-containing mineral by one-step method
CN102586655A (en) * 2012-03-27 2012-07-18 郑州大学 Process for strengthening Al-Sc-Zr conduction alloy and optimizing conductivity
RU2497966C1 (en) * 2012-05-18 2013-11-10 Закрытое акционерное общество "Военно-промышленная инвестиционная группа "ВИЛС" Method for obtaining ingots from aluminium alloys with non-dendrite structure
CN105274397A (en) * 2015-10-23 2016-01-27 东北大学 High-strength super-heat-resistant aluminum-alloy conductor and preparation method thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107794419A (en) * 2017-06-13 2018-03-13 湖南东方钪业股份有限公司 A kind of aluminium alloy polynary intermediate alloy and preparation method thereof
CN107794419B (en) * 2017-06-13 2020-03-31 湖南东方钪业股份有限公司 Multi-element intermediate alloy for aluminum alloy and preparation method thereof
CN110004332A (en) * 2019-05-23 2019-07-12 河北工业大学 Al3Sc-Al3The preparation method of Zr/Al composite material inovulant
CN110129596A (en) * 2019-05-23 2019-08-16 河北工业大学 Thin ribbon shaped nanometer Al3The preparation method of (Sc, Zr)/Al composite inoculant
CN110423921A (en) * 2019-09-12 2019-11-08 中国恩菲工程技术有限公司 A kind of ScAl3/ Al base composite inoculant, preparation method and application
CN111363934A (en) * 2020-04-08 2020-07-03 中国恩菲工程技术有限公司 Magnesium-scandium alloy and preparation method thereof
CN111363934B (en) * 2020-04-08 2021-06-22 中国恩菲工程技术有限公司 Magnesium-scandium alloy and preparation method thereof
CN112746191A (en) * 2020-12-30 2021-05-04 贵州华科铝材料工程技术研究有限公司 Preparation method of mixed Sc-Zr aluminum alloy
CN115896551A (en) * 2022-11-17 2023-04-04 山东省科学院新材料研究所 Aluminum-scandium-zirconium intermediate alloy and preparation method thereof
CN115896551B (en) * 2022-11-17 2024-02-20 山东省科学院新材料研究所 Aluminum scandium zirconium intermediate alloy and preparation method thereof
CN115990669A (en) * 2023-03-24 2023-04-21 湖南东方钪业股份有限公司 Scandium-aluminum alloy powder for additive manufacturing and preparation method thereof
CN115990669B (en) * 2023-03-24 2023-06-27 湖南东方钪业股份有限公司 Scandium-aluminum alloy powder for additive manufacturing and preparation method thereof

Also Published As

Publication number Publication date
CN105821260B (en) 2017-06-16

Similar Documents

Publication Publication Date Title
CN105821260B (en) The aluminium, Seandium, zirconium intermediate alloy and its production method of a kind of aluminium alloy
CN104894466B (en) The manufacture method of high-strength high-elasticity modulus low stress casting pig
CN100507036C (en) Vacuum induction smelting producing high-quality high-titanium iron method based on aluminothermic reduction
CN103060642A (en) High-strength aluminum alloy subjected to carbonitride complex treatment and preparation method thereof
CN102433475B (en) High-strength and high-hardness aluminum alloy and preparation method thereof
JP2007533850A (en) Improved recycling method for Al-B4C composites
CN110724863A (en) Large-size high-magnesium rare earth aluminum alloy ingot and preparation method thereof
CN103233138B (en) Mg-Al series magnesium alloy grain-refining agent and preparation method thereof
CN105779803B (en) A kind of aluminium alloy composite modifier and preparation method thereof
CN104674099A (en) Six-element intermediate alloy for preparation of high-strength titanium alloy and preparation method thereof
CN101368237B (en) Process for producing silicon particle reinforced zinc based composite material
CN102418007A (en) High-temperature aluminum alloy treated by using WB and LiH powder and preparation method of aluminum alloy
CN102433472A (en) High strength aluminium alloy and smelting and casting methods thereof
CN102418009B (en) Aluminum alloy capable of digesting high-hardness compounds and smelting method of aluminum alloy
CN102660693A (en) Aluminum alloy treated by using TiN powder and BeH2 powder, and preparation method thereof
CN102952956B (en) Electrolytic aluminum liquid microalloyed six-membered intermediate alloy and preparation and use method thereof
JP7202505B2 (en) Method for preparing lithium-aluminum alloy
KR101591645B1 (en) Al-Si-Ti-Mg ALLOY INGOT AND METHOD FOR MANUFACTURING THE SAME
CN113308614A (en) ZM6 alloy refining method
CN102517475A (en) ZrC-doped high strength aluminum alloy and preparation method thereof
CN109280786B (en) Aluminum-tungsten intermediate alloy and production method thereof
CN102418008A (en) High-strength aluminum alloy obtained by removing inclusion through HfC and preparation method of aluminum alloy
KR102014330B1 (en) Additives for improving the castability of aluminum-boron carbide composite material
CN102505084B (en) High-strength aluminum alloy added with TaC and preparation method for high-strength aluminum alloy
CN115896551B (en) Aluminum scandium zirconium intermediate alloy and preparation 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
GR01 Patent grant