CN1123844A - Intermediate alloy Al-Ti-RE compound used for melting Ti alloy - Google Patents
Intermediate alloy Al-Ti-RE compound used for melting Ti alloy Download PDFInfo
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- CN1123844A CN1123844A CN94112628.5A CN94112628A CN1123844A CN 1123844 A CN1123844 A CN 1123844A CN 94112628 A CN94112628 A CN 94112628A CN 1123844 A CN1123844 A CN 1123844A
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- China
- Prior art keywords
- alloy
- rare earth
- titanium
- aluminium
- master alloy
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- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 36
- 239000000956 alloy Substances 0.000 title claims abstract description 36
- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 20
- 238000002844 melting Methods 0.000 title claims description 9
- 230000008018 melting Effects 0.000 title claims description 8
- 150000001875 compounds Chemical class 0.000 title claims description 5
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 36
- -1 rare-earth compound Chemical class 0.000 claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 claims description 25
- 239000004411 aluminium Substances 0.000 claims description 23
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
- 150000002910 rare earth metals Chemical class 0.000 claims description 18
- 239000010936 titanium Substances 0.000 claims description 11
- 229910052719 titanium Inorganic materials 0.000 claims description 11
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 claims description 5
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 4
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052684 Cerium Inorganic materials 0.000 claims description 2
- 229910052691 Erbium Inorganic materials 0.000 claims description 2
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 2
- 229910010038 TiAl Inorganic materials 0.000 claims description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims description 2
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 claims description 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052702 rhenium Inorganic materials 0.000 claims description 2
- 229910052727 yttrium Inorganic materials 0.000 claims description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 2
- 229910052746 lanthanum Inorganic materials 0.000 claims 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000003723 Smelting Methods 0.000 abstract description 2
- 229910018575 Al—Ti Inorganic materials 0.000 abstract 1
- 230000003064 anti-oxidating effect Effects 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 13
- 238000002360 preparation method Methods 0.000 description 10
- 239000002994 raw material Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000005070 sampling Methods 0.000 description 4
- 238000005303 weighing Methods 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 238000005275 alloying Methods 0.000 description 2
- 230000003078 antioxidant effect Effects 0.000 description 2
- 235000015895 biscuits Nutrition 0.000 description 2
- 229910000765 intermetallic Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000007499 fusion processing Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The Al-Ti rare-earth compound as intermediate alloy for smelting Ti alloy contains such components (Wt.%) as Al (35-65), Ti (15-55) and rare-earth elements (10-20) and features better antioxidation nature, breaking easily, and short production period.
Description
The invention belongs to the technical field of smelting non-ferrous metal, the master alloy that promptly provides a kind of titanium alloy melting to use.
When melting contains the titanium alloy of rare earth element, be mostly to adopt pure rare earth or aluminium rare earth intermediate alloy both at home and abroad.Directly mix with pure rare earth and to make furnace charge with titanium sponge and the master alloy that contains other alloying element, furnace charge is being pressed in the consumable electrode process, often because the content of rare earth in desire preparation titanium alloy is lower the rare earth evil taking place in the consumable arc-melting ingot casting sees segregation, prepare at long furnace charge of cycle simultaneously, in electrode compacting and the fusion process, in ingot casting, produce oxide inclusion owing to rare earth generation severe oxidation.Prepare titanium alloy with the aluminium rare earth intermediate alloy, for making the aluminium rare earth intermediate alloy severe oxidation does not take place at room temperature, often the content with rare earth is controlled at below 20% (weight percent), and aluminium at the content of master alloy more than 80%.The master alloy of high alumina like this, can not be selected as the master alloy of the not high titanium alloy of general aluminium content, especially to the titanium alloy of preparation stanniferous, molybdenum, silicon etc., often also be to adopt the aluminium alloy that contains these elements to make master alloy, the aluminium too high levels of the aluminium rare earth intermediate alloy that just more seems this moment.In addition, the toughness of aluminium rare earth intermediate alloy is better, is difficult for being broken into bulk, can only use with car wound or bits mode, makes troubles so just for the preparation of material and titanium alloy electrode compacting.
The objective of the invention is to solve above-mentioned titanium alloy preparation and the existing problem of melting that contains rare earth element, a kind of rare earth titanium alloy that is widely used in containing promptly is provided, antioxidant property is good, can guarantee the titan alloy casting ingot metallurgical quality, and aluminium titanium rare earth compound type master alloy easy to use.
Aluminium titanium rare earth compound type master alloy provided by the present invention is characterized in that it is by TiAl
2, ReAl
2And a small amount of (Al, Re) the Oization thing is formed, and the proportioning of the principal element aluminium of master alloy, titanium, rare earth (calculating by weight percentage, as follows) is:
Aluminium 35-65
Titanium 15-55
Rare earth 10-20 wherein, rare earth can be pure rare earth element hand hay cutter, cerium, praseodymium, neodymium, gadolinium, erbium, yttrium and also can be mishmetal.
Aluminium titanium rare earth compound type master alloy provided by the present invention has following advantage:
1. traditional aluminium rare earth intermediate alloy contains the aluminium more than 80%, and so high aluminium content can not be used for preparing the not high titanium alloy of aluminium content, so its application is restricted.Master alloy of the present invention is because aluminium content is 35%-65%, and titanium content is 15%-55%, thereby can be widely used as the master alloy of titanium alloy.
2. when traditional pure rare earth is directly used in the preparation titanium alloy, because severe oxidation can take place in air, thereby make titan alloy casting ingot be easy to generate metallurgical imperfections such as oxide inclusion.And oxidation owing to have the anti-oxidant characteristics of metallic compound, under 800 ℃ of conditions, does not take place yet, thereby can avoid the generation of titan alloy casting ingot middle-weight rare earths oxide inclusion in compound type master alloy provided by the invention.Simultaneously, master alloy can be deposited in the air midium or long term, thereby brought convenience to its transportation, storage and titanium alloy production.
3, master alloy of the present invention, because it is metallic compound type, it is crisp and easily be broken into blocky characteristics to have matter, thereby can simplify and shorten the production process of titanium alloy.
Below by the present invention of embodiment enumeration:
The preparation of embodiment 1. aluminium titanium rare earth compound type master alloys
Take by weighing raw material:
Technical pure lead (AOO): 50
One-level titanium sponge: 30
Pure rare earth neodymium (Nd 〉=99.5%): 20
The raw material that weighs up is put into the vacuum induction furnace crucible, vacuumize 10
-2MmHg, applying argon gas 400mmHg send the electrofusion raw metal, 1300 ℃～1400 ℃ melting 5-8 minute, melt is cast in the swage, treat that ingot casting is cooled to below 800 ℃, from stove, take out ingot casting and place air to cool off.
Carry out chemical analysis from the ingot casting sampling, analytical results is:
Aluminium: 48.50
Titanium: 29.97
Neodymium: 21.53
Ingot casting is broken into the fragment that mean sizes is φ 3mm, and barrelling is so that store and transportation.
Embodiment 2: the preparation of the ingot casting of high-temperature titanium alloy and rod tree thereof, cake (ring) material
As the application example of master alloy of the present invention, be used for 2 plant-scale Ti-5, the preparation of 5Al-4.2Sn-2Zr-1Mo-0.25Si-0.85Nd high-temperature titanium alloy (alloy designations Ti-55).Ready all alloying element raw materials and master alloy are bundled into the alloy bag with aluminium foil, it are evenly arranged in the titanium sponge, and are pressed into electrode block, electrode block is welded into the consumable electrode rod.Electrode bar obtains φ 518mm ingot casting through twice vacuum consumable electrode arc furnace melting.Ingot casting carries out UT (Ultrasonic Testing) through stripping off the skin, and the result shows: metallurgical imperfection such as find to be mingled with, its quality reaches control criterion.
Ingot casting is dialled through cogging, rammer, is swaged into excellent base, biscuit.Behind the car optical surface, carry out UT (Ultrasonic Testing), the result shows, defective such as finds to be mingled with, its quality reaches quality control standard.Rod tree that is rolled into from excellent base and cake (ring) the tree sampling that is swaged into from biscuit through dual thermal treatment, are carried out main mechanical property detection, and the result shows: all properties all reaches technological standard.
Embodiment 3.
Take by weighing raw material: commercial-purity aluminium (A00): 40
One-level titanium sponge: 40
Pure rare earth titanium (Sm 〉=99.5%): 20
Preparation condition shows with embodiment 1. sampling analysis results:
Aluminium: 39.42
Titanium: 39.57
Neodymium: 21.01
Embodiment 4
Take by weighing raw material: commercial-purity aluminium (AOO): 65
Titanium: 20
Pure rare earth gadolinium: 15
Preparation condition is with embodiment 1, the sampling analysis result:
Aluminium: 63.63
Titanium: 19.42
Gadolinium: 16.95
Claims (3)
1. aluminium titanium rare earth compound type master alloy that is used for titanium alloy melting, it is characterized in that: it is by TiAl
2, ReAl
2And a small amount of (Al, Re) the O compound is formed, and the principal element aluminium of master alloy, titanium, rare earth proportioning (calculating by weight percentage) are:
Aluminium: 35-65
Titanium: 15-55
Rare earth: 10-20
Wherein, rare earth can be for pure rare earth element lanthanum, cerium, praseodymium, neodymium, gadolinium, erbium, yttrium, also can be mishmetal.
2. will show 1 described compound type master alloy by right, it is characterized in that: the optimum weight ratio between aluminium, titanium, the rare earth is:
49～51∶29～31∶19～21
3. by claim 1,2 described compound type master alloys, it is characterized in that its user mode is sloping shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94112628.5A CN1123844A (en) | 1994-11-21 | 1994-11-21 | Intermediate alloy Al-Ti-RE compound used for melting Ti alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94112628.5A CN1123844A (en) | 1994-11-21 | 1994-11-21 | Intermediate alloy Al-Ti-RE compound used for melting Ti alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1123844A true CN1123844A (en) | 1996-06-05 |
Family
ID=5036300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94112628.5A Pending CN1123844A (en) | 1994-11-21 | 1994-11-21 | Intermediate alloy Al-Ti-RE compound used for melting Ti alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1123844A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397619B (en) * | 2007-09-26 | 2010-06-02 | 洛阳双瑞精铸钛业有限公司 | Novel casting titanium alloy ZTi-6Al-4V-0.01Y |
| CN104911410A (en) * | 2015-07-02 | 2015-09-16 | 黑龙江科技大学 | Aluminum alloy refiner intermediate alloy and preparation method thereof |
| CN111926218A (en) * | 2020-06-29 | 2020-11-13 | 广西国瑞稀钪新材料科技有限公司 | Novel Al-Ti-Er aluminum alloy grain refining intermediate alloy and preparation method thereof |
-
1994
- 1994-11-21 CN CN94112628.5A patent/CN1123844A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397619B (en) * | 2007-09-26 | 2010-06-02 | 洛阳双瑞精铸钛业有限公司 | Novel casting titanium alloy ZTi-6Al-4V-0.01Y |
| CN104911410A (en) * | 2015-07-02 | 2015-09-16 | 黑龙江科技大学 | Aluminum alloy refiner intermediate alloy and preparation method thereof |
| CN111926218A (en) * | 2020-06-29 | 2020-11-13 | 广西国瑞稀钪新材料科技有限公司 | Novel Al-Ti-Er aluminum alloy grain refining intermediate alloy and preparation method thereof |
| CN111926218B (en) * | 2020-06-29 | 2022-04-12 | 广西国瑞稀钪新材料科技有限公司 | Al-Ti-Er aluminum alloy grain refining intermediate alloy and preparation method thereof |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |