EP1641950A1 - Beta-titanlegierung, verfahren zur herstellung eines warmwalzproduktes aus einer solchen legierung und deren verwendungen - Google Patents
Beta-titanlegierung, verfahren zur herstellung eines warmwalzproduktes aus einer solchen legierung und deren verwendungenInfo
- Publication number
- EP1641950A1 EP1641950A1 EP04740562A EP04740562A EP1641950A1 EP 1641950 A1 EP1641950 A1 EP 1641950A1 EP 04740562 A EP04740562 A EP 04740562A EP 04740562 A EP04740562 A EP 04740562A EP 1641950 A1 EP1641950 A1 EP 1641950A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- titanium alloy
- beta titanium
- hot
- alloy
- beta
- 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
Links
Classifications
-
- 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
-
- 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
-
- 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
Definitions
- Beta titanium alloy process for producing a hot rolled product from such an alloy and their uses
- Beta titanium alloys with high vanadium contents are characterized by good strength and good toughness and ductility. They are usually processed in an arm shaping process into semi-finished products, such as sheets, rods, hollow or solid profiles, wires, from which high-quality lightweight components are then manufactured.
- beta-titanium alloys typically contain V, Nb, Ta, Mo, Fe and Cr as the main alloy elements stabilizing the krz ß mixed crystal, as well as certain contents of Zr, Sn, Al and additives of Si.
- a beta titanium alloy and a method for producing components from this alloy are also from the
- the Cr content is less than
- a melt composed in this way is cast into ingots, which are then thermoformed into a component in a two-stage process.
- the component obtained is brought into solid solution by a heat treatment in which its temperature is kept at 10 ° C. to 40 ° C. below a value specified in the DD 281 422 A5 "transus ⁇ " real value. After this heat treatment, the part is held between 550 ° C to 650 ° C for four to twelve hours.
- the parts treated in this way have a proof stress R p o, 2 of at least 1100 MPa and tensile strength R m of at least 1200 MPa.
- beta titanium alloys are given in AT-PS 272 677, EP 0 408 313 B ⁇ and EP 0 600 579 B1.
- AT-PS 272 677 Further examples of beta titanium alloys are given in AT-PS 272 677, EP 0 408 313 B ⁇ and EP 0 600 579 B1.
- Common to the state of the art documented in these publications is the effort to provide a titanium alloy which is as easy to cast as possible, which at the same time has good mechanical properties and can be produced inexpensively.
- the object of the invention was therefore to create a high-strength beta titanium alloy with good plastic properties before curing for the purpose of good formability and high fatigue strength after curing, which can be produced inexpensively.
- a procedure should also be specified with which such an alloy can be used to produce high-strength components at low cost.
- this task is solved by a beta titanium alloy, which (in mass%) V: 10 - 17%, Fe: 2 - 5%, AI: 2 - 5%, Mo: 0.1 - 3 %, and optionally one or more alloy elements from the group Sn, Si, Cr, Nb, Zr according to the following stipulation: Sn: 0.1 - 3%, Si: 0.1 ⁇ 2%, Cr: ⁇ 2%, Nb: ⁇ 2%, Zr: ⁇ 2, where the beta titanium alloy can additionally have contents of C and of elements from the group of the lanthanides, and the balance contains Ti and unavoidable impurities.
- a beta-titanium alloy composed according to the invention safely achieves an elastic limit R p o, 2 of at least 1400 MPa, a tensile strength R m of at least 1500 MPa and a plastic elongation ⁇ p0 , 2 of more than 4% at room temperature.
- Their density p does not exceed 4.8 g / cm 3 , so that not only extremely strong but also weight-optimized components can be produced with a beta titanium alloy according to the invention.
- the alloy according to the invention has vanadium contents which are significantly higher than those which are provided in the prior art in beta titanium alloys.
- the ß-phase of the structure is stabilized and the heat resistance increased due to the high V-content.
- the V content in an alloy according to the invention is therefore preferably in the range from 12 to 17% by mass, in particular in the range from 13 to 17% by mass.
- Levels of 2 - 5% by mass of aluminum stabilize the ⁇ phase of the structure and cause effective mixed crystal hardening.
- the effect of iron in the titanium alloy composed according to the invention consists in stabilizing the ⁇ phase of the structure, increasing the heat resistance and improving the formation of mixed crystals.
- a titanium material according to the invention contains molybdenum in amounts of 0.1-3% by mass, preferably at least 0.5% by mass, in order to stabilize the ⁇ -phase of the structure and to increase the heat resistance.
- a beta titanium alloy according to the invention also contains one or more alloy elements from the group Sn, Si, Cr, Nb, Zr.
- the presence of tin has a beneficial effect on solid solution hardening and heat resistance.
- the Sn contents are therefore preferably in the range from 0.5 to 3% by mass.
- Silicon increases the heat resistance and the oxidation resistance in an alloy according to the invention.
- Chromium can be added to the alloy to stabilize the ß-phase of the structure and to increase the heat resistance.
- Additions to niobium also have a favorable influence on the heat resistance and the oxidation resistance of the alloy.
- the alloy according to the invention can contain further components as long as these do not negatively influence the properties achieved according to the invention.
- levels of carbon and levels of elements which are assigned to the group of lanthanides are assigned to the group of lanthanides.
- Optimal properties of the beta titanium alloys according to the invention are obtained if the limit values specified above are adhered to with at least two decimal places.
- the above-mentioned object is achieved in that the following work steps are carried out when producing a product produced from a beta titanium alloy:
- the hot forming for the production of strips or sheets can be carried out as hot rolling, which can be followed, if necessary, by coiling.
- the Ti alloy according to the invention can be produced particularly cost-effectively by alloying the alloy elements V, Fe and Al in a manner known per se, not in the form of a master alloy, but individually.
- Such master alloys are commercially available.
- the hot end product obtained by the process according to the invention after the hot final forming consists of single-phase, metastable beta titanium, the transus temperature T B of which is approximately 788 ° C. If the hot end product is produced by hot rolling, it has crystals stretched in the rolling direction and has a partially dynamically recrystallized structure.
- the block-shaped preliminary product processed in the course of the method according to the invention is obtained by remelting.
- a vacuum remelting furnace can be used for this in a manner known per se.
- the preliminary product can be round blocks, for example, which are then hot-formed into billets or blanks in the course of the hot forming.
- Sticks of this type are typically square-shaped with edge lengths of, for example, 70 mm or round with a diameter of, for example, 60 mm.
- the hot final forming is typically carried out at forming temperatures which are in the range from 950 ° C. to 1150 ° C. in order to be effective Cross-section reduction and homogenization of the composition and structure.
- an advantageous embodiment of the method according to the invention provides that the hot final product is solution-annealed after the hot final forming.
- Cold forming follows the solution annealing.
- Solution annealing is typically carried out at 875 ° C for 30 minutes.
- the solution-annealed hot end product is annealed to recrystallize.
- the temperatures during this annealing treatment with holding times of 20 to 40 minutes are typically in the range from 775 ° C to 875 ° C.
- the end product obtained after cold working has an elastic limit R po , 2 of at least 870 MPa to 900 MPa, a tensile strength R m which is 890 MPa to 944 MPa, and a plastic elongation of 14-17%.
- the product obtained has an elastic limit R p o, 2 of at least 1,400 MPa, an elastic limit R m of at least 1,500 MPa and an elongation ⁇ p ⁇ of at least 4%.
- the typical temperature of the curing treatment is approximately 480 ° C. If these time and temperature specifications are observed, an optimal range of properties of the end products produced according to the invention is established.
- Semifinished products such as blanks, sheets, rods, profiles or wires, can be produced from a beta titanium alloy according to the invention, which, due to their property profile, are excellently suited to highly resilient components.
- the semi-finished products can be produced inexpensively, in particular by using the method according to the invention.
- Beta titanium alloys according to the invention have proven to be particularly suitable as a construction material for the production of components which are used in rail or road-bound vehicles and in the aerospace industry. Examples of this use include axle springs, connecting rods, piston pins, high-strength screws, brake pistons and discs.
- beta-titanium alloys according to the invention are particularly well suited for the production of components which are used in the field of general mechanical engineering, apparatus construction, plant construction, container construction, cryogenic technology, vehicle construction or in the field of sports.
- beta titanium alloys obtained according to the invention are particularly suitable for beta titanium alloys obtained according to the invention.
- Suitable for the production of components that are used in the temperature range from -196 ° C to 300 ° C.
- Hot rolling temperatures which were in the range from 1100 ° C to 950 ° C, were hot-rolled into wire and then coiled into coils. After hot rolling, the wire had single-phase metastable ß-titanium (transus temperature T ß approx. 788 ° C) with crystallites stretched in the direction of the wire axis and partially dynamically recrystallized structure.
- the wire was solution annealed at 875 ° C for 30 minutes. After the solution annealing, the wire was cold formed. After the cold forming, the wire was recrystallized at temperatures that were between 775 ° C and 875 ° C, with a holding time that was in the range of 20 minutes to 40 minutes.
- the annealed wire had a yield strength R p o, 2 / between 870 MPa and 900 MPa, a tensile strength R m between 890 MPa and 944 MPa and an elongation A between 14% and 17%.
- the recrystallization annealing was followed by a curing treatment in which the wire was kept at 480 ° C. for 5 hours.
- the wire treated in this way had an elastic limit R po , 2 of more than 1400 MPa, a tensile strength R m of more than 1500 MPa and an elongation A which was at least in the range from 4% to 5% at room temperature.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Forging (AREA)
- Metal Rolling (AREA)
- Silicon Compounds (AREA)
- Heat Treatment Of Nonferrous Metals Or Alloys (AREA)
- Heat Treatment Of Articles (AREA)
- Conductive Materials (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10329899A DE10329899B8 (de) | 2003-07-03 | 2003-07-03 | Beta-Titanlegierung, Verfahren zur Herstellung eines Warmwalzproduktes aus einer solchen Legierung und deren Verwendungen |
PCT/EP2004/007201 WO2005003399A1 (de) | 2003-07-03 | 2004-07-02 | Beta-titanlegierung, verfahren zur herstellung eines warmwalzproduktes aus einer solchen legierung und deren verwendungen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1641950A1 true EP1641950A1 (de) | 2006-04-05 |
EP1641950B1 EP1641950B1 (de) | 2008-06-18 |
Family
ID=33521276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04740562A Expired - Lifetime EP1641950B1 (de) | 2003-07-03 | 2004-07-02 | Beta-titanlegierung, verfahren zur herstellung eines warmwalzproduktes aus einer solchen legierung und deren verwendungen |
Country Status (9)
Country | Link |
---|---|
US (1) | US20070175552A1 (de) |
EP (1) | EP1641950B1 (de) |
JP (1) | JP2007527466A (de) |
KR (1) | KR20060111895A (de) |
CN (1) | CN100478472C (de) |
AT (1) | ATE398686T1 (de) |
DE (2) | DE10329899B8 (de) |
WO (1) | WO2005003399A1 (de) |
ZA (1) | ZA200510297B (de) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4939740B2 (ja) * | 2004-10-15 | 2012-05-30 | 住友金属工業株式会社 | β型チタン合金 |
DE102005052918A1 (de) * | 2005-11-03 | 2007-05-16 | Hempel Robert P | Kaltverformbare Ti-Legierung |
CN100460541C (zh) * | 2007-06-21 | 2009-02-11 | 上海交通大学 | 复合强化耐热钛合金 |
US9440272B1 (en) | 2011-02-07 | 2016-09-13 | Southwire Company, Llc | Method for producing aluminum rod and aluminum wire |
CN102259254A (zh) * | 2011-07-20 | 2011-11-30 | 宝鸡市三立有色金属有限责任公司 | 用于制造压力传感器的材料及压力传感器的制备方法 |
CN103320672B (zh) * | 2013-06-25 | 2015-07-22 | 汕头经济特区超艺螺丝工业有限公司 | 一种减震功能性钛合金紧固连接单元 |
CN104018028B (zh) * | 2014-06-23 | 2016-06-29 | 北京科技大学 | 一种高铝高硅铸造钛合金 |
CN105624466A (zh) * | 2016-01-26 | 2016-06-01 | 安徽同盛环件股份有限公司 | 一种钛合金薄壁环件及其锻造成形方法 |
RU2614356C1 (ru) * | 2016-04-13 | 2017-03-24 | Федеральное государственное унитарное предприятие "Всероссийский научно-исследовательский институт авиационных материалов" (ФГУП "ВИАМ") | Сплав на основе титана и изделие, выполненное из него |
CN105803261B (zh) * | 2016-05-09 | 2018-01-02 | 东莞双瑞钛业有限公司 | 高尔夫球头用的高韧性铸造钛合金材料 |
CN106435264A (zh) * | 2016-06-08 | 2017-02-22 | 中国船舶重工集团公司第七二五研究所 | 一种中强高韧耐蚀可焊接合金及其制备方法 |
CN107904443A (zh) * | 2017-12-19 | 2018-04-13 | 燕山大学 | 一种中强超高塑性钛合金 |
CN108504897B (zh) * | 2018-07-05 | 2019-02-19 | 西安航空学院 | 一种近β型钛合金及该钛合金棒材的锻造方法 |
CN109295342A (zh) * | 2018-08-22 | 2019-02-01 | 北京理工大学 | 一种Ti-Al-Mo-Sn-Zr-Si-V合金及其制备方法 |
CN109055817A (zh) * | 2018-08-22 | 2018-12-21 | 北京理工大学 | 一种Ti-Al-V-Fe-Zr-Si合金及其制备方法 |
CN109082561A (zh) * | 2018-09-27 | 2018-12-25 | 燕山大学 | 一种高塑性钛合金及其制备方法 |
CN112779437B (zh) * | 2019-10-23 | 2022-12-27 | 大田精密工业股份有限公司 | 高尔夫球杆头钛合金材料及高尔夫钛合金球杆头 |
CN110846535A (zh) * | 2019-11-25 | 2020-02-28 | 江苏威拉里新材料科技有限公司 | 一种钛合金粉末 |
CN112899522B (zh) * | 2021-01-15 | 2022-04-05 | 西安稀有金属材料研究院有限公司 | 超低弹性模量超高加工硬化率Ti-Al-Mo-Cr系β钛合金及其热处理工艺 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1098217A (en) * | 1965-05-24 | 1968-01-10 | Crucible Steel Co America | Titanium-base alloys |
US3615378A (en) * | 1968-10-02 | 1971-10-26 | Reactive Metals Inc | Metastable beta titanium-base alloy |
US3986868A (en) * | 1969-09-02 | 1976-10-19 | Lockheed Missiles Space | Titanium base alloy |
SU443090A1 (ru) * | 1972-10-09 | 1974-09-15 | Предприятие П/Я Г-4361 | Сплав на основе титана |
FR2614040B1 (fr) * | 1987-04-16 | 1989-06-30 | Cezus Co Europ Zirconium | Procede de fabrication d'une piece en alliage de titane et piece obtenue |
EP0408313B1 (de) * | 1989-07-10 | 1995-12-27 | Nkk Corporation | Legierung auf Titan-Basis und Verfahren zu deren Superplastischer Formgebung |
FR2676460B1 (fr) * | 1991-05-14 | 1993-07-23 | Cezus Co Europ Zirconium | Procede de fabrication d'une piece en alliage de titane comprenant un corroyage a chaud modifie et piece obtenue. |
US5294267A (en) * | 1992-12-04 | 1994-03-15 | Titanium Metals Corporation | Metastable beta titanium-base alloy |
JPH09316572A (ja) * | 1996-06-03 | 1997-12-09 | Mitsubishi Materials Corp | Ti合金鋳物の熱処理方法 |
-
2003
- 2003-07-03 DE DE10329899A patent/DE10329899B8/de not_active Expired - Fee Related
-
2004
- 2004-07-02 JP JP2006518094A patent/JP2007527466A/ja active Pending
- 2004-07-02 AT AT04740562T patent/ATE398686T1/de not_active IP Right Cessation
- 2004-07-02 KR KR1020067000188A patent/KR20060111895A/ko not_active Application Discontinuation
- 2004-07-02 US US10/560,977 patent/US20070175552A1/en not_active Abandoned
- 2004-07-02 WO PCT/EP2004/007201 patent/WO2005003399A1/de active IP Right Grant
- 2004-07-02 CN CNB2004800190087A patent/CN100478472C/zh not_active Expired - Fee Related
- 2004-07-02 DE DE502004007396T patent/DE502004007396D1/de not_active Expired - Lifetime
- 2004-07-02 EP EP04740562A patent/EP1641950B1/de not_active Expired - Lifetime
-
2005
- 2005-12-19 ZA ZA200510297A patent/ZA200510297B/en unknown
Non-Patent Citations (1)
Title |
---|
See references of WO2005003399A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO2005003399A1 (de) | 2005-01-13 |
DE10329899B8 (de) | 2005-05-19 |
CN1902331A (zh) | 2007-01-24 |
CN100478472C (zh) | 2009-04-15 |
JP2007527466A (ja) | 2007-09-27 |
ATE398686T1 (de) | 2008-07-15 |
US20070175552A1 (en) | 2007-08-02 |
DE10329899B3 (de) | 2005-01-20 |
DE502004007396D1 (de) | 2008-07-31 |
ZA200510297B (en) | 2007-01-31 |
KR20060111895A (ko) | 2006-10-30 |
EP1641950B1 (de) | 2008-06-18 |
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