CN107043869B - A kind of high performance-price ratio titanium alloy and preparation method thereof - Google Patents
A kind of high performance-price ratio titanium alloy and preparation method thereof Download PDFInfo
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- CN107043869B CN107043869B CN201710101478.7A CN201710101478A CN107043869B CN 107043869 B CN107043869 B CN 107043869B CN 201710101478 A CN201710101478 A CN 201710101478A CN 107043869 B CN107043869 B CN 107043869B
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C14/00—Alloys based on titanium
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- 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
Abstract
The invention belongs to field of alloy material, are related to a kind of high performance-price ratio titanium alloy and preparation method thereof.The titanium alloy is in addition to titanium is mainly contained, the also aluminium containing weight percent 4 7%, 0.2 2.5% iron, 0.1 2% chromium and micro inevitable impurity, and the titanium alloy does not contain molybdenum and vanadium.Using the high performance-price ratio titanium alloy of the present invention, more widely used TC4 titanium alloy materials can be easier to make for processing, heat treatment performance is more preferable, and machine-shaping is easier, and performance is more excellent, and can reduce the price of production cost and final alloy material.
Description
Technical field
The invention belongs to field of alloy material, are related to a kind of high performance-price ratio titanium alloy and preparation method thereof.
Background technology
TC4 is using earliest titanium alloy, is that the U.S. was succeeded in developing in 1954, and TC4 nominal compositions are Ti-6Al-
4V.It is wide so as to obtain since its heat resistance, intensity, plasticity, toughness, weldability, corrosion resistance and bio-compatibility are preferable
General application.
But TC4 processing performances and heat-treatability can be not so good, therefore machine-shaping is difficult, stock utilization is low, causes
Final products it is of high cost, it is expensive.
Invention content
The primary and foremost purpose of the present invention is to provide a kind of high performance-price ratio titanium alloy, with more widely used TC4
Titanium alloy material is easier to make for processing, and heat treatment performance is more preferable, and machine-shaping is easier, and performance is more excellent, and can reduce production
The price of cost and final alloy material.
In order to achieve this, in the embodiment on basis, the present invention provides a kind of high performance-price ratio titanium alloy, the titanium
Alloy is in addition to titanium is mainly contained, the also aluminium containing weight percent 4-7%, the iron of 0.2-2.5%, the chromium of 0.1-2%, Yi Jiwei
The inevitable impurity of amount, and the titanium alloy does not contain molybdenum and vanadium.
In a preferred embodiment, the present invention provides a kind of high performance-price ratio titanium alloy, wherein the titanium alloy
Tin also containing weight percent 0.1-2%.
In a preferred embodiment, the present invention provides a kind of high performance-price ratio titanium alloy, wherein the titanium alloy
Silicon also containing weight percent 0.1-0.5%.
In a preferred embodiment, the present invention provides a kind of high performance-price ratio titanium alloy, wherein described can not keep away
The total weight percent of carbon, hydrogen, oxygen, nitrogen is less than 0.4% in the impurity exempted from.
In a preferred embodiment, the present invention provides a kind of high performance-price ratio titanium alloy, wherein the titanium alloy
By the material composition of following weight percent：Aluminium 4-7%, iron 0.2-2.5%, chromium 0.1-2%, tin 0.1-2%, silicon 0.1-
0.5%, remaining is titanium and inevitable impurity.
In a preferred embodiment, the present invention provides a kind of high performance-price ratio titanium alloy, wherein the iron is with aluminium
Iron intermediate alloy form adds in, and the chromium is added in the form of aluminium chromium hardener, and the tin is in the form of aluminium tin intermediate alloy
It adds in, the silicon is added in the form of aluminium silicon intermediate alloy.It may insure the accuracy and uniformity of alloying component in this way, so as to
Ensure the consistency of alloy material performance.
Second object of the present invention is to provide the preparation method of high performance-price ratio titanium alloy as described above, so that titanium alloy is more
It is easily processed, heat treatment performance is more preferable；The titanium alloy being prepared is more uniform, and performance is more excellent；And it can reduce and be produced into
The price of this and final alloy material.
In order to achieve this, in the embodiment on basis, the present invention provides the system of high performance-price ratio titanium alloy as described above
Preparation Method, the preparation method include the following steps：
(1) electrode will be pressed into after the substance batch mixing of component alloy, melting is twice or three times in consumable electrode vacuum furnace
To alloy cast ingot；
(2) ingot casting after cutting riser and tail portion, forges by cogging through stripping off the skin, slab or bar stock is made, using rolling
Obtain plank or bar.
In a preferred embodiment, the present invention provides the preparation method of high performance-price ratio titanium alloy as described above,
Described in consumable electrode vacuum furnace in melting vacuum degree be 0.1-10Pa.
In a preferred embodiment, the present invention provides the preparation method of high performance-price ratio titanium alloy as described above,
Described in cogging forging temperature be 1000 DEG C -1100 DEG C.
In a preferred embodiment, the present invention provides the preparation method of high performance-price ratio titanium alloy as described above,
Described in the temperature that slab or bar stock is made be 900 DEG C -1100 DEG C.
In a preferred embodiment, the present invention provides the preparation method of high performance-price ratio titanium alloy as described above,
Described in rolling temperature be 850-1050 DEG C.
The beneficial effects of the present invention are, can more extensively using the high performance-price ratio titanium alloy of the present invention
The TC4 titanium alloy materials used are easier to make for processing, and heat treatment performance is more preferable, and machine-shaping is easier, and performance is more excellent, and can
Reduce the price of production cost and final alloy material.And the preparation method of the high performance-price ratio titanium alloy of the present invention is utilized, it can be with
Titanium alloy is made to be easier to make for processing, heat treatment performance is more preferable；The titanium alloy being prepared is more uniform, and performance is more excellent；It and can
Reduce the price of production cost and final alloy material.
The high performance-price ratio titanium alloy of the present invention, it is not only cheap, but also with more excellent mechanical property, Yi Jiliang
Good cold and hot working performance, punching press, forging and rolling are convenient, and Cutting free processing can increase substantially becoming a useful person for end product
Rate and service life.
Specific embodiment
The specific embodiment of the present invention is further illustrated with reference to embodiments.
Embodiment 1：The preparation of each formula titanium alloy material
Preparing the titanium alloy material of each formula composition in table 1 with the following method, (each content of material is weight percentage
Content；Molybdenum and vanadium are free of in each formula titanium alloy material；Respectively it is formulated the total weight hundred of carbon in inevitable impurity, hydrogen, oxygen, nitrogen
Divide than being respectively less than 0.4%).
By each formula composition alloyage material, will be closed among titanium sponge, ferro-aluminum intermediate alloy, aluminium chromium hardener, aluminium tin
Gold is pressed into electrode after aluminium silicon intermediate alloy batch mixing, in consumable electrode vacuum furnace melting it is (molten to obtain alloy cast ingot twice or three times
It refines vacuum level requirements and is less than 1Pa).Ingot casting is through stripping off the skin, and after cutting riser and tail portion, is forged in 1050 DEG C of coggings, then at 950 DEG C
Slab is made, then carries out hot rolling at 950 DEG C, cold rolling obtains titanium alloy plate after annealing by hot rolled plate.
The titanium alloy material of 1 different formulations of table composition
Embodiment 2：The mechanics properties testing of each formula titanium alloy material
Tensile sample is made by national standard GB/T 228.1-2010 in titanium alloy plate made from each formula as embodiment 1,
Comprehensive mechanical property test at room temperature is carried out, test result is as follows shown in table 2.
Table 2 is respectively formulated the mechanical experimental results of titanium alloy material
Titanium alloy performance of the present invention is better than Ti-6Al-4V, and molybdenum without precious metal it can be seen from data in above-mentioned table 2
And vanadium, so with higher cost performance.
Embodiment 3：The manufacturing cost of each formula titanium alloy material is calculated
Formula as embodiment 1, titanium alloy sheet made from preparation method are subjected to manufacturing cost accounting, and close with TC4 titaniums
Golden plate manufacturing cost compares, and acquired results are as shown in table 3 below.
Respectively formula titanium alloy material manufacturing cost calculates result to table 3
Titanium alloy material manufacturing cost of the present invention is significantly lower than Ti-6Al-4V it can be seen from data in above-mentioned table 3.
Above-described embodiment is for example, the present invention can also be with other ad hoc fashions or others to the present invention
Particular form is implemented, without departing from the gist of the invention or substantive characteristics.Therefore, from the point of view of the embodiment of description is in terms of any
It is regarded as illustrative and non-limiting.The scope of the present invention should illustrate by appended claims, any and claim
Intention and the equivalent variation of range should also be included in the scope of the present invention.
Claims (9)
1. a kind of high performance-price ratio titanium alloy, it is characterised in that：The titanium alloy also contains weight percent in addition to titanium is mainly contained
Aluminium than 4-7%, the iron of 0.2-2.5%, the chromium of 0.1-2%, the silicon of 0.1-0.5% and micro inevitable impurity,
And the titanium alloy does not contain molybdenum and vanadium.
2. titanium alloy according to claim 1, it is characterised in that：The titanium alloy also contains weight percent 0.1-
2% tin.
3. titanium alloy according to claim 1, it is characterised in that：Carbon, hydrogen, oxygen, nitrogen in the inevitable impurity
Total weight percent be less than 0.4%.
4. titanium alloy according to claim 1, which is characterized in that the titanium alloy by following weight percent substance
Composition：Aluminium 4-7%, iron 0.2-2.5%, chromium 0.1-2%, tin 0.1-2%, silicon 0.1-0.5%, remaining is for titanium and inevitably
Impurity.
5. titanium alloy according to claim 4, it is characterised in that：The iron is added in the form of ferro-aluminum intermediate alloy, institute
The chromium stated is added in the form of aluminium chromium hardener, and the tin is added in the form of aluminium tin intermediate alloy, and the silicon is in aluminium silicon
Between alloy form add in.
6. the preparation method of the titanium alloy according to claim 1-5 any one, which is characterized in that the preparation method
Include the following steps：
(1) electrode will be pressed into after the substance batch mixing of component alloy, in consumable electrode vacuum furnace melting closed twice or three times
Golden ingot casting；
(2) ingot casting after cutting riser and tail portion, forges by cogging through stripping off the skin, slab or bar stock is made, using rolling
Plank or bar.
7. preparation method according to claim 6, it is characterised in that：The vacuum degree of melting is in the consumable electrode vacuum furnace
0.1-10Pa。
8. preparation method according to claim 6, it is characterised in that：The temperature of described cogging forging for 1000 DEG C-
1100℃。
9. preparation method according to claim 6, it is characterised in that：The rolling temperature is 850-1050 DEG C.
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| CN107746991A (en) * | 2017-09-29 | 2018-03-02 | 北京金宇顺达科技股份有限公司 | A kind of titanium alloy and preparation method thereof |
| CN112813303B (en) * | 2020-12-30 | 2022-04-01 | 西安西工大超晶科技发展有限责任公司 | 1000 MPa-strength-level low-cost titanium alloy material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200781A (en) * | 2006-12-12 | 2008-06-18 | 北京有色金属研究总院 | Siliceous titanium alloy |
| CN101403058A (en) * | 2008-11-21 | 2009-04-08 | 北京正安广泰新材料科技有限公司 | Low cost alpha and beta type titan alloy |
| CN102400013A (en) * | 2010-09-09 | 2012-04-04 | 北京正安广泰新材料科技有限公司 | Low-cost beta titanium alloy |
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| US9957836B2 (en) * | 2012-07-19 | 2018-05-01 | Rti International Metals, Inc. | Titanium alloy having good oxidation resistance and high strength at elevated temperatures |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101200781A (en) * | 2006-12-12 | 2008-06-18 | 北京有色金属研究总院 | Siliceous titanium alloy |
| CN101403058A (en) * | 2008-11-21 | 2009-04-08 | 北京正安广泰新材料科技有限公司 | Low cost alpha and beta type titan alloy |
| CN102400013A (en) * | 2010-09-09 | 2012-04-04 | 北京正安广泰新材料科技有限公司 | Low-cost beta titanium alloy |
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