CN1584079A - Low-cost superplastic titanium alloy - Google Patents
Low-cost superplastic titanium alloy Download PDFInfo
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- CN1584079A CN1584079A CN 200410042565 CN200410042565A CN1584079A CN 1584079 A CN1584079 A CN 1584079A CN 200410042565 CN200410042565 CN 200410042565 CN 200410042565 A CN200410042565 A CN 200410042565A CN 1584079 A CN1584079 A CN 1584079A
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- 229910001069 Ti alloy Inorganic materials 0.000 title claims abstract description 18
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 16
- 239000000956 alloy Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 13
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052742 iron Inorganic materials 0.000 claims abstract description 7
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 7
- 239000010936 titanium Substances 0.000 claims abstract description 7
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 7
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 6
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 6
- 239000011651 chromium Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 6
- 239000011733 molybdenum Substances 0.000 claims abstract description 6
- 229910052720 vanadium Inorganic materials 0.000 claims abstract description 6
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004411 aluminium Substances 0.000 claims 1
- 238000010891 electric arc Methods 0.000 description 3
- 238000005242 forging Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910017116 Fe—Mo Inorganic materials 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
Description
技术领域technical field
一种低成本超塑性钛合金，涉及一种近β型低成本超塑钛合金。A low-cost superplastic titanium alloy relates to a near-beta low-cost superplastic titanium alloy.
背景技术Background technique
钛合金密度低、比强度高、耐腐蚀性能好，是一种理想的结构材料，在飞机、舰船等军用领域和化工制药等民用领域都发挥着重要作用。但钛合金加工困难，使得钛合金产品成本相对较高，从而限制了钛合金的广泛应用。研制超塑性钛合金，使得钛合金能够超塑温度下通过超塑成型扩散连接技术料的净成型，从而减少加工工序，提高材料利用率，一次性加工制造出形状复杂的结构件，在降低钛合金制造成本的同时减轻了重量，对于扩大钛的应用无疑具有重大意义。日本开发的超塑温度低的SP700(Ti-4.5Al-3V-2Fe-2Mo)钛合金有较好的性能，已得到了应用。目前，对超塑钛合金的研究正在不断进行。Titanium alloy has low density, high specific strength, and good corrosion resistance. It is an ideal structural material and plays an important role in military fields such as aircraft and ships and civilian fields such as chemical and pharmaceutical industries. However, the processing of titanium alloys is difficult, which makes the cost of titanium alloy products relatively high, thus limiting the wide application of titanium alloys. The development of superplastic titanium alloys enables titanium alloys to be net-shaped through superplastic forming diffusion connection technology materials at superplastic temperatures, thereby reducing processing procedures, improving material utilization, and manufacturing structural parts with complex shapes at one time. While the cost of alloy manufacturing is reduced, the weight is undoubtedly of great significance for expanding the application of titanium. The SP700 (Ti-4.5Al-3V-2Fe-2Mo) titanium alloy with low superplastic temperature developed in Japan has better performance and has been applied. At present, research on superplastic titanium alloys is ongoing.
发明内容Contents of the invention
本发明的目的在于提供一种超塑温度为800℃-850℃的、延伸率高的、具有良好的力学性能的近β型低成本超塑钛合金。The object of the present invention is to provide a near-beta low-cost superplastic titanium alloy with a superplastic temperature of 800°C-850°C, high elongation and good mechanical properties.
本发明的目的是通过以下技术方案实现的。The purpose of the present invention is achieved through the following technical solutions.
一种低成本超塑性钛合金，其特征在于其合金的重量百分比组成为：铝是3.0％～6.0％，钒是2.0％～4.0％，钼是1.0％～3.0％，铁是0.5％～2.0％，铬是0.5％～2.0％，余量是钛和不可避免的杂质。A low-cost superplastic titanium alloy is characterized in that the weight percentage of the alloy is composed of: 3.0% to 6.0% of aluminum, 2.0% to 4.0% of vanadium, 1.0% to 3.0% of molybdenum, and 0.5% to 2.0% of iron %, chromium is 0.5% to 2.0%, and the balance is titanium and unavoidable impurities.
本发明的低成本超塑性钛合金是采用一般钛合金的制备方法生产的。其中合金元素Mo和Fe是以廉价的Fe-Mo中间合金形式加入的，从而降低了原料成本。该合金的热加工温度较低，且易于塑性变形，从而可有效降低加工成本。The low-cost superplastic titanium alloy of the invention is produced by a general titanium alloy preparation method. The alloying elements Mo and Fe are added in the form of cheap Fe-Mo master alloy, thereby reducing the raw material cost. The alloy has a low hot working temperature and is easy to plastically deform, thereby effectively reducing processing costs.
具体实施方式Detailed ways
实施例1Example 1
按名义合金成份配料，经真空自耗电弧炉两次熔炼制备得到铸锭，合金的重量百分比组成为：铝是3.2％，钒是2.0％，钼是3.0％，铁是2.0％，铬是1.0％，余量是钛和不可避免的杂质。锻造后，将合金加工成直径Φ为25mm棒材。经850℃/1h，WQ+510℃/8h，AC制度热处理后，室温拉伸性能为：抗拉强度σb＝1010MPa，，屈服强度σ0.2＝970MPa，延伸率δ＝21％，断面收缩率Ψ＝59％。在温度为850℃和拉伸速度为2mm/min条件下，延伸率δ为1000％。According to the nominal alloy composition, the ingot is prepared by two times of vacuum consumable electric arc furnace melting. The weight percentage of the alloy is: aluminum is 3.2%, vanadium is 2.0%, molybdenum is 3.0%, iron is 2.0%, and chromium is 1.0%, the balance is titanium and unavoidable impurities. After forging, the alloy is processed into a rod with a diameter of Φ25mm. After heat treatment at 850℃/1h, WQ+510℃/8h, AC system, the tensile properties at room temperature are: tensile strength σ b = 1010MPa, yield strength σ 0.2 = 970MPa, elongation δ = 21%, reduction of area Ψ = 59%. Under the conditions of a temperature of 850° C. and a stretching speed of 2 mm/min, the elongation δ was 1000%.
实施例2Example 2
按名义合金成份配料，经真空自耗电弧炉两次熔炼制备得到铸锭，合金的重量百分比组成为：铝是4.5％，钒是3.0％，钼是2.0％，铁是1.0％，铬是1.0％，余量是钛和不可避免的杂质。锻造后，将合金加工成直径Φ为25mm棒材。经850℃/1h，WQ+510℃/8h，AC制度热处理后，室温拉伸性能为：抗拉强度σb＝1030MPa，屈服强度σ0.2＝980MPa，延伸率δ＝19％，断面收缩率Ψ＝56％。在温度为850℃和拉伸速度为2mm/min条件下，延伸率δ为1000％。According to the nominal alloy composition, the ingot is prepared by two smelting in a vacuum consumable electric arc furnace. The weight percentage of the alloy is: aluminum is 4.5%, vanadium is 3.0%, molybdenum is 2.0%, iron is 1.0%, and chromium is 1.0%, the balance is titanium and unavoidable impurities. After forging, the alloy is processed into a rod with a diameter of Φ25mm. After heat treatment at 850℃/1h, WQ+510℃/8h, AC system, the tensile properties at room temperature are: tensile strength σ b = 1030MPa, yield strength σ 0.2 = 980MPa, elongation δ = 19%, reduction of area Ψ = 56%. Under the conditions of a temperature of 850° C. and a stretching speed of 2 mm/min, the elongation δ was 1000%.
实施例3Example 3
按名义合金成份配料，经真空自耗电弧炉两次熔炼制备得到铸锭，合金的重量百分比组成为：铝是5.5％，钒是3.5％，钼是2.5％，铁是1.5％，铬是1.5％，余量是钛和不可避免的杂质。锻造后，将合金加工成直径Φ为25mm棒材。经850℃/1h，WQ+510℃/8h，AC制度热处理后，室温拉伸性能为：抗拉强度σb＝1100MPa，屈服强度σ0.2＝990MPa，延伸率δ＝15％，断面收缩率Ψ＝50％。在温度为850℃和拉伸速度为2mm/min条件下，延伸率δ为1000％。According to the nominal alloy composition, the ingot is prepared by two smelting in a vacuum consumable electric arc furnace. The weight percentage of the alloy is: aluminum is 5.5%, vanadium is 3.5%, molybdenum is 2.5%, iron is 1.5%, and chromium is 1.5%, the balance is titanium and unavoidable impurities. After forging, the alloy is processed into a rod with a diameter of Φ25mm. After heat treatment at 850℃/1h, WQ+510℃/8h, AC system, the tensile properties at room temperature are: tensile strength σ b = 1100MPa, yield strength σ 0.2 = 990MPa, elongation δ = 15%, reduction of area Ψ = 50%. Under the conditions of a temperature of 850° C. and a stretching speed of 2 mm/min, the elongation δ was 1000%.
Claims (1)
- A kind of low-cost superplasticity titanium alloy, it is characterized in that the weight percent of its alloy consists of: aluminium is 3.0%～6.0%, vanadium is 2.0%～4.0%, molybdenum is 1.0%～3.0%, iron is 0.5%～2.0%, and chromium is 0.5%～2.0%, and surplus is titanium and unavoidable impurities.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042565 CN1584079A (en) | 2004-05-24 | 2004-05-24 | Low-cost superplastic titanium alloy |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410042565 CN1584079A (en) | 2004-05-24 | 2004-05-24 | Low-cost superplastic titanium alloy |
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| Publication Number | Publication Date |
|---|---|
| CN1584079A true CN1584079A (en) | 2005-02-23 |
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| CN 200410042565 Pending CN1584079A (en) | 2004-05-24 | 2004-05-24 | Low-cost superplastic titanium alloy |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886189A (en) * | 2010-04-08 | 2010-11-17 | 厦门大学 | A kind of beta titanium alloy and preparation method thereof |
| CN101451206B (en) * | 2007-11-30 | 2010-12-29 | 中国科学院金属研究所 | Superhigh intensity titanium alloy |
| CN102061408A (en) * | 2011-01-26 | 2011-05-18 | 西北有色金属研究院 | Method for preparing low-cost titanium alloy |
| CN102828058A (en) * | 2012-09-24 | 2012-12-19 | 西北有色金属研究院 | Preparation method of low-cost titanium alloy |
| CN102936673A (en) * | 2012-12-04 | 2013-02-20 | 西北有色金属研究院 | Titanium alloy for spring parts and preparation method of alloy |
| CN105803262A (en) * | 2016-05-31 | 2016-07-27 | 西北有色金属研究院 | Tungsten-containing high-strength titanium alloy |
-
2004
- 2004-05-24 CN CN 200410042565 patent/CN1584079A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101451206B (en) * | 2007-11-30 | 2010-12-29 | 中国科学院金属研究所 | Superhigh intensity titanium alloy |
| CN101886189A (en) * | 2010-04-08 | 2010-11-17 | 厦门大学 | A kind of beta titanium alloy and preparation method thereof |
| CN101886189B (en) * | 2010-04-08 | 2012-09-12 | 厦门大学 | Beta titanium alloy and preparation method thereof |
| CN102061408A (en) * | 2011-01-26 | 2011-05-18 | 西北有色金属研究院 | Method for preparing low-cost titanium alloy |
| CN102828058A (en) * | 2012-09-24 | 2012-12-19 | 西北有色金属研究院 | Preparation method of low-cost titanium alloy |
| CN102828058B (en) * | 2012-09-24 | 2014-03-19 | 西北有色金属研究院 | Preparation method of low-cost titanium alloy |
| CN102936673A (en) * | 2012-12-04 | 2013-02-20 | 西北有色金属研究院 | Titanium alloy for spring parts and preparation method of alloy |
| CN102936673B (en) * | 2012-12-04 | 2014-10-01 | 西北有色金属研究院 | A kind of titanium alloy for spring parts and preparation method thereof |
| CN105803262A (en) * | 2016-05-31 | 2016-07-27 | 西北有色金属研究院 | Tungsten-containing high-strength titanium alloy |
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