CN109082560A - A kind of titanium alloy sheet of stretch-proof and preparation method thereof - Google Patents
A kind of titanium alloy sheet of stretch-proof and preparation method thereof Download PDFInfo
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- CN109082560A CN109082560A CN201810992861.0A CN201810992861A CN109082560A CN 109082560 A CN109082560 A CN 109082560A CN 201810992861 A CN201810992861 A CN 201810992861A CN 109082560 A CN109082560 A CN 109082560A
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- titanium alloy
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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
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/16—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of other metals or alloys based thereon
- C22F1/18—High-melting or refractory metals or alloys based thereon
- C22F1/183—High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
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- Crystallography & Structural Chemistry (AREA)
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- Powder Metallurgy (AREA)
Abstract
The invention discloses titanium alloy sheet of a kind of stretch-proof and preparation method thereof, the titanium alloy sheet is made of following raw material percentage composition by weight: copper 1.5 ~ 2.2%, iron 0.8 ~ 1.4%, zirconium 0.2 ~ 0.5%, molybdenum 0.1 ~ 0.3%, neodymium 0.1 ~ 0.2%, carbon 0.1 ~ 0.2%, remaining is titanium.Preparation method includes melting ingot casting, Pre-aging treatment, deep cooling rolling, warm-rolling four steps of deformation.The titanium alloy sheet has excellent mechanical property, has taken into account plasticity and intensity, and preparation process is simple, has substantially increased production efficiency.
Description
Technical field
The invention belongs to titanium alloy sheet preparation fields, and in particular to a kind of titanium alloy sheet of stretch-proof and preparation method thereof.
Background technique
Titanium is a kind of important structural metal to grow up the fifties in last century, and titanium alloy has intensity height, corrosion resistance
Feature good, heat resistance is high.Last century five, the sixties mainly develop the high-temperature titanium alloy and body of aero-engine
Structural titanium alloy.The seventies develop a collection of corrosion resistant Ti alloy, and so far, corrosion resistant Ti alloy and high-strength titanium close the eighties
Gold is further developed.Currently, titanium alloy is widely used in oil exploitation, chemical industry, space flight and aviation, shipbuilding, vapour
The fields such as turner industry.
Existing titanium alloy plate specific strength with higher, excellent processing performance, welding performance, but its rolled plate
Plasticity it is unstable, though the plate plasticity after annealing is promoted, its intensity has a degree of loss.CN
107695127 A disclose a kind of production method of titanium tube, specifically comprise the following steps: step 1, and selecting TC4 titanium alloy is original
Material；Step 2, TC4 titanium alloy raw material is made by pipe using melting, forging and extruding；Step 3, to pipe made of step 2 into
Row rolling, drawing and annealing；Step 4, straightening processing is carried out to through step 3 treated titanium tube.By the patent formula system
Standby titanium alloy tube is by annealing, although improving plasticity, the shortcomings that there are losss of strength.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of titanium alloy sheet and preparation method thereof of stretch-proof, the titanium
Alloy sheets have excellent mechanical property, have taken into account plasticity and intensity, and preparation process is simple, have substantially increased production efficiency.
The present invention is achieved by the following technical solutions:
A kind of titanium alloy sheet of stretch-proof, the titanium alloy sheet are made of following raw material percentage composition by weight: copper 1.5 ~ 2.2
%, 0.8 ~ 1.4 % of iron, 0.2 ~ 0.5 % of zirconium, 0.1 ~ 0.3 % of molybdenum, 0.1 ~ 0.2 % of neodymium, 0.1 ~ 0.2 % of carbon, remaining is titanium.
A kind of preparation method of the titanium alloy sheet of stretch-proof, comprising the following steps:
Raw material is put in proportion into vertical type vacuum sintering furnace by step 1), is vacuumized heating mixing, is re-filled with inert gas, maintains
Temperature and pressure cast titanium alloy ingot after melting；
Titanium alloy ingot made from step 1) is carried out Pre-aging treatment, subsequent water cooling to room temperature by step 2；
Step 3) will carry out deep cooling rolling through the processed titanium alloy ingot of step 2, control temperature by liquid nitrogen, titanium alloy is made
Slab；
Step 4) titanium alloy slab described in step 3) carries out warm-rolling processing, 1 ~ 2 h of time, and the titanium for obtaining the stretch-proof closes
Golden plate.
Further, the temperature that heating is vacuumized described in step 1) is 1400 ~ 1800 DEG C.
Further, inert gas described in step 1) is argon gas, and the pressure is 1.0 × 10-2 Pa。
Further, the temperature of Pre-aging treatment described in step 2 is 230 ~ 260 DEG C, and the processing time is 10 ~ 30 min.
Further, liquid nitrogen described in step 3) is controlled at -150 ~ -120 DEG C.
Further, the temperature of the processing of warm-rolling described in step 4) is 160 ~ 190 DEG C.
Beneficial effects of the present invention are as follows:
1, using the combination of neodymium element and zircon, effectively increase the tensile resistance of titanium alloy, taken into account plate plasticity and
Intensity realizes the promotion of titanium alloy sheet mechanical property by reasonable raw material proportioning.
2, the warm-rolling after preageing and deep cooling rolling before being rolled using deep cooling is combined, and technique week is not only substantially reduced
Phase also effectively improves the mechanical property of titanium alloy sheet, and easy to operate, improves production efficiency.
Specific embodiment
Present invention is further elaborated in following combination specific embodiment.
Embodiment 1
A kind of titanium alloy sheet of stretch-proof is made of following raw material percentage composition by weight: 1.5 % of copper, 0.8 % of iron, zirconium 0.5
%, 0.1 % of molybdenum, 0.2 % of neodymium, 0.1 % of carbon, 96.8 % of titanium.
Its preparation process the following steps are included:
(1) raw material is put in proportion into vertical type vacuum sintering furnace, being evacuated to vacuum degree is 1.0 × 10-2Pa is heated to
1400 DEG C, it is re-filled with inert gas Ar after melt-blended, maintains temperature and pressure, casts titanium alloy ingot after melting；
(2) titanium alloy ingot is subjected to Pre-aging treatment, pre-age temperature is 230 DEG C, and the processing time is 10 min, then
Water cooling is to room temperature；
(3) duo mill is used, the titanium alloy ingot crossed through Pre-aging treatment is subjected to multi-pass deep cooling rolling deformation, passes through liquid nitrogen
Controlled at -120 DEG C, titanium alloy slab is made；
(4) warm-rolling is carried out to the titanium alloy slab and handles 1 h, treatment temperature is 160 DEG C, obtains the titanium of the stretch-proof
Alloy sheets.
Embodiment 2
A kind of titanium alloy sheet of stretch-proof is made of following raw material percentage composition by weight: 2.2 % of copper, 1.4 % of iron, zirconium 0.2
%, 0.3 % of molybdenum, 0.1 % of neodymium, 0.2 % of carbon, 95.6 % of titanium.
Its preparation process the following steps are included:
(1) raw material is put in proportion into vertical type vacuum sintering furnace, being evacuated to vacuum degree is 1.0 × 10-2Pa is heated to
1800 DEG C, it is re-filled with inert gas Ar after melt-blended, maintains temperature and pressure, casts titanium alloy ingot after melting；
(2) titanium alloy ingot is subjected to Pre-aging treatment, pre-age temperature is 260 DEG C, and the processing time is 30 min, then
Water cooling is to room temperature；
(3) duo mill is used, the titanium alloy ingot crossed through Pre-aging treatment is subjected to multi-pass deep cooling rolling deformation, passes through liquid nitrogen
Controlled at -150 DEG C, titanium alloy slab is made；
(4) warm-rolling is carried out to the titanium alloy slab and handles 2 h, treatment temperature is 190 DEG C, obtains the titanium of the stretch-proof
Alloy sheets.
Embodiment 3
A kind of titanium alloy sheet of stretch-proof is made of following raw material percentage composition by weight: 1.9 % of copper, 1.1 % of iron, zirconium 0.4
%, 0.2 % of molybdenum, 0.1 % of neodymium, 0.2 % of carbon, 96.1 % of titanium.
Its preparation process the following steps are included:
(1) raw material is put in proportion into vertical type vacuum sintering furnace, being evacuated to vacuum degree is 1.0 × 10-2Pa is heated to
1600 DEG C, it is re-filled with inert gas Ar after melt-blended, maintains temperature and pressure, casts titanium alloy ingot after melting；
(2) titanium alloy ingot is subjected to Pre-aging treatment, pre-age temperature is 250 DEG C, and the processing time is 20 min, then
Water cooling is to room temperature；
(3) duo mill is used, the titanium alloy ingot crossed through Pre-aging treatment is subjected to multi-pass deep cooling rolling deformation, passes through liquid nitrogen
Controlled at -140 DEG C, titanium alloy slab is made；
(4) warm-rolling is carried out to the titanium alloy slab and handles 1.5 h, treatment temperature is 170 DEG C, obtains the stretch-proof
Titanium alloy sheet.
Test case 1
Room-temperature mechanical property test is carried out to titanium alloy sheet made from embodiment 1 ~ 3, test result is as shown in table 1.
1 test result of table
| Test material | Yield strength (MPa) | Tensile strength (MPa) | Elongation (%) |
| Embodiment 1 | 1536 | 1628 | 20 |
| Embodiment 2 | 1552 | 1637 | 22 |
| Embodiment 3 | 1571 | 1669 | 23 |
| Existing titanium alloy plate | < 1300 | < 1400 | < 15 |
Claims (7)
1. a kind of titanium alloy sheet of stretch-proof, which is characterized in that the titanium alloy sheet is by following raw material percentage composition group by weight
At: 1.5 ~ 2.2 % of copper, 0.8 ~ 1.4 % of iron, 0.2 ~ 0.5 % of zirconium, 0.1 ~ 0.3 % of molybdenum, 0.1 ~ 0.2 % of neodymium, 0.1 ~ 0.2 % of carbon,
Remaining is titanium.
2. a kind of preparation method of the titanium alloy sheet of stretch-proof described in claim 1, which comprises the following steps:
Raw material is put in proportion into vertical type vacuum sintering furnace by step 1), is vacuumized heating mixing, is re-filled with inert gas, maintains
Temperature and pressure cast titanium alloy ingot after melting；
Titanium alloy ingot made from step 1) is carried out Pre-aging treatment, subsequent water cooling to room temperature by step 2；
Step 3) will carry out deep cooling rolling through the processed titanium alloy ingot of step 2, control temperature by liquid nitrogen, titanium alloy is made
Slab；
Step 4) titanium alloy slab described in step 3) carries out warm-rolling processing, 1 ~ 2 h of time, and the titanium for obtaining the stretch-proof closes
Golden plate.
3. a kind of preparation method of the titanium alloy sheet of stretch-proof according to claim 2, which is characterized in that described in step 1)
The temperature for vacuumizing heating is 1400 ~ 1800 DEG C.
4. a kind of preparation method of the titanium alloy sheet of stretch-proof according to claim 2, which is characterized in that described in step 1)
Inert gas is argon gas, and the pressure is 1.0 × 10-2 Pa。
5. a kind of preparation method of the titanium alloy sheet of stretch-proof according to claim 2, which is characterized in that described in step 2
The temperature of Pre-aging treatment is 230 ~ 260 DEG C, and the processing time is 10 ~ 30 min.
6. a kind of preparation method of the titanium alloy sheet of stretch-proof according to claim 2, which is characterized in that described in step 3)
Liquid nitrogen is controlled at -150 ~ -120 DEG C.
7. a kind of preparation method of the titanium alloy sheet of stretch-proof according to claim 2, which is characterized in that described in step 4)
The temperature of warm-rolling processing is 160 ~ 190 DEG C.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360070A (en) * | 2020-02-13 | 2020-07-03 | 中南大学 | Method for improving high-temperature plasticity of 5xxx aluminum alloy |
Citations (8)
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|---|---|---|---|---|
| US4744878A (en) * | 1986-11-18 | 1988-05-17 | Kerr-Mcgee Chemical Corporation | Anode material for electrolytic manganese dioxide cell |
| US4874434A (en) * | 1988-05-16 | 1989-10-17 | Kerr-Mcgee Chemical Corporation | Method of treating a titanium structure |
| EP2333130A1 (en) * | 2004-03-19 | 2011-06-15 | Nippon Steel Corporation | Heat resistant titanium alloy sheet excellent in cold workability and a method of production of the same |
| JP2012057200A (en) * | 2010-09-07 | 2012-03-22 | Nippon Steel Corp | Titanium plate excelling in rigidity in rolling width direction, and method of manufacturing the same |
| CN103014389A (en) * | 2013-01-21 | 2013-04-03 | 湘潭大学 | Preparation method of high-strength nanocrystalline type medical Beta titanium alloy for orthopaedic implanting |
| CN105039782A (en) * | 2015-08-27 | 2015-11-11 | 彭睿 | Fireproof door with protective titanium alloy plate |
| CN105925842A (en) * | 2016-05-31 | 2016-09-07 | 沈阳中核舰航特材科技有限公司 | Manufacturing method for high-quality titanium alloy (BT6C) |
| CN108018509A (en) * | 2017-12-19 | 2018-05-11 | 重庆大学 | A kind of deformation heat treatment method for improving aluminum alloy rolled plate mechanical property |
-
2018
- 2018-08-29 CN CN201810992861.0A patent/CN109082560A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744878A (en) * | 1986-11-18 | 1988-05-17 | Kerr-Mcgee Chemical Corporation | Anode material for electrolytic manganese dioxide cell |
| US4874434A (en) * | 1988-05-16 | 1989-10-17 | Kerr-Mcgee Chemical Corporation | Method of treating a titanium structure |
| EP2333130A1 (en) * | 2004-03-19 | 2011-06-15 | Nippon Steel Corporation | Heat resistant titanium alloy sheet excellent in cold workability and a method of production of the same |
| JP2012057200A (en) * | 2010-09-07 | 2012-03-22 | Nippon Steel Corp | Titanium plate excelling in rigidity in rolling width direction, and method of manufacturing the same |
| CN103014389A (en) * | 2013-01-21 | 2013-04-03 | 湘潭大学 | Preparation method of high-strength nanocrystalline type medical Beta titanium alloy for orthopaedic implanting |
| CN105039782A (en) * | 2015-08-27 | 2015-11-11 | 彭睿 | Fireproof door with protective titanium alloy plate |
| CN105925842A (en) * | 2016-05-31 | 2016-09-07 | 沈阳中核舰航特材科技有限公司 | Manufacturing method for high-quality titanium alloy (BT6C) |
| CN108018509A (en) * | 2017-12-19 | 2018-05-11 | 重庆大学 | A kind of deformation heat treatment method for improving aluminum alloy rolled plate mechanical property |
Non-Patent Citations (1)
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| 李跃凯等: "低温冷轧工艺制备纳米晶纯钛及其力学性能", 《塑性工程学报》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111360070A (en) * | 2020-02-13 | 2020-07-03 | 中南大学 | Method for improving high-temperature plasticity of 5xxx aluminum alloy |
| CN111360070B (en) * | 2020-02-13 | 2021-08-06 | 中南大学 | Method for improving high-temperature plasticity of 5xxx aluminum alloy |
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Application publication date: 20181225 |