CN101476059A - Medium-strength and high-ductility titanium alloy - Google Patents
Medium-strength and high-ductility titanium alloy Download PDFInfo
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- CN101476059A CN101476059A CNA200910021048XA CN200910021048A CN101476059A CN 101476059 A CN101476059 A CN 101476059A CN A200910021048X A CNA200910021048X A CN A200910021048XA CN 200910021048 A CN200910021048 A CN 200910021048A CN 101476059 A CN101476059 A CN 101476059A
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Abstract
The invention belonging to a low cost titanium alloy for sports products and other civil industries, relates to mezzo-forte high-ductility titanium alloy.The invention is characterized in that the components of the mezzo-forte high-ductility titanium alloy are aluminum of 2-4.5% by weight, molybdenum is 0.1-1.5% by weight, zirconium is 0.5-2% by weight, Fe is 0.1-1.5% by weight, and the rest is Ti and ineluctable foreign matters; the sum of each component content of the raw material is 100%. The manufacturing process comprises the following steps: batching according to a certain weight percentage, batch mixing and pressing to form consumable electrodes, performing a second smelting in the vacuum consumable arc furnace, and then making casting ingot into casting ingot boards.Because of the solution strength effect of aluminum, zirconium, molybdenum, vanadium, iron and the like, the titanium alloy of the invention can remain a definite strength level, the cost of the raw materials of the alloy can be reduced, cold working performance of the alloy is improved, the cold deformation amount is increased, the process flow is shortened, and correspondingly, the processing cost of the materials is reduced, processing performances of winding, bending, press forming and the like of the materials are improved, and shaping requirements of users can be further satisfied.
Description
Technical field
The present invention relates to a kind of in strong high-ductility titanium alloy, belong to a kind of physical culture goods and other civilian industry low-cost titanium alloy.
Background technology
Titanium or titanium alloy is described as on " the 3rd metal of emergence " because of having many advantages such as density is little, yield tensile ratio is high, corrosion-resistant, is a kind of important strategic metallic substance, and development and national economy, construction are had vital role.Along with people to titanium knowledge understand gradually deeply, titanium or titanium alloy has obtained applying more and more widely, particularly civilian industries such as physical culture goods, building, electric power, automobile increase year by year with the titanium amount.
Titanium system golf club is the typical case of titanium alloy in the sector application of physical culture goods, the sector kept a metastable growth with the titanium amount.The upper cover plate of titanium system golf club and lower cover are the positions with titanium amount maximum, generally adopt the titanium alloy sheet of medium tenacity, as: TC1, Gr4, Ti-4Zr etc.In recent years, along with to the improving constantly of golf club performance requriements, also higher performance index requirement had been proposed titanium alloy.The increase of titanium system golf club consumption has also brought the demand that reduces cost simultaneously.But, the TC1 alloy that adopts in the currently available products, owing to added 1.5% manganese element, the melting technology complexity causes board cost higher.The intensity of the Gr4 that adopts is on the low side, and intensity is all below 650MPa.The intensity and the hardness of the Ti-4Zr titanium alloy that adopts are on the low side, and result of use is not ideal, and owing to added 4% zr element in this alloy, make cost higher relatively.So in fierce competitive market, the user wish to access a kind of cold-forming ability excellence, tensile strength more than the 700MPa, plasticity makes titanium system golf club upper cover plate and lower cover at the lower titanium alloy of the price more than 20%.
Summary of the invention
The technical problem that solves
For fear of the deficiencies in the prior art part, the present invention propose a kind of in strong high-ductility titanium alloy, can reach the low-cost titanium alloy of tensile strength 〉=700MPa, unit elongation 〉=20%, can be used for other fields such as physical culture goods, chemical industry, electric power, machinery and aerospace.
Technical scheme
The present invention propose in strong high-ductility titanium alloy, it is characterized in that the weight percent of component is: aluminium is 2～4.5%, molybdenum is 0.1～1.5, vanadium is 0.1～1.5, zirconium is 0.5～2, Fe is 0.1～1.5, surplus is Ti and unavoidable impurities; Each material component content sum is 100%.
The weight percent of component is: aluminium is 2.3～3.7%, molybdenum is 0.3～1.2, vanadium is 0.3～1.2, zirconium is 0.5～1.5, iron is 0.2～1.0, surplus is Ti and unavoidable impurities; Each material component content sum is 100%.
A kind of prepare described in the method for strong high-ductility titanium alloy, it is characterized in that step is as follows:
Step 1: by weight percent batching, the batch mixing of claim 1 or 2, be pressed into consumable electrode;
Step 2: carry out the melting first time in vacuum consumable electricity electric arc furnace, the crucible specification is Φ 110mm, melting voltage 25～35V, electric current 2500～3500A;
Step 3: the smelting pot specification is Φ 150mm for the second time, melting voltage 28～33V, electric current 4000～5300A, the ingot casting of strong high-ductility titanium alloy in obtaining.
A kind of ingot casting with strong high-ductility titanium alloy in described is prepared into the method for ingot casting sheet material, it is characterized in that step is as follows:
Step 1: strong high-ductility titanium alloy ingot casting heats for 1100～1200 ℃ in temperature in inciting somebody to action, and is swaged into the slab of thickness 70～80mm then;
Step 2: after the cleaning steel slab surface defective, continue to be heated to 950～1000 ℃ of slabs that are rolled into thickness 4.5mm;
Step 3: reheat to 850～940 ℃ are rolled into the slab of thickness 2.8mm;
Step 4: the slab that step 3 is obtained is rolled down to 1.8mm through 750～820 ℃ of annealing, reconditioning on 1200 cold-rolling mills;
Step 5: after 750～820 ℃/30 ' annealing, be cold rolled to 1.18mm, obtain finished product sheet material through de-oiling, the pickling of annealing alkali.
Beneficial effect
Strong high-ductility titanium alloy has added aluminium and a spot of zirconium, molybdenum, vanadium and ferro element in provided by the invention.Because the solid solution strengthening effect of elements such as aluminium, zirconium, molybdenum, vanadium and iron, alloy can keep the certain intensity grade; A spot of molybdenum and vanadium add, are equipped with cheap iron and aluminium shot again with the form of master alloy, can reduce the material cost of alloy; Owing to the adding of molybdenum, these two kinds of isomorphism beta stable elements of vanadium and eutectoid type beta stable element iron, improved the cold-forming property of alloy, the cold deformation amount increases, and technical process is shortened, and has reduced the tooling cost of material accordingly; The adding of molybdenum, vanadium and three kinds of beta stable elements of iron also refinement crystal grain, improved the processing performance such as bending, bending, punching press of material, can further satisfy user's moulding needs.
Embodiment
Now in conjunction with the embodiments the present invention is further described:
Titanium alloy provided by the invention has adopted conventional alloying smelting technology, complete processing, helps suitability for industrialized production.Wherein each constituent element mainly adopts the form of master alloy to allocate into, evenly mixes system through raw material, is prepared into electrode, become to forge the ingot casting of usefulness through vacuum consumable arc-melting, forge into slab on water pressure engine or air hammer, slab is rolled into sheet material on milling train, and sheet material after heat treatment carries out performance test again.
Embodiment 1:
The prescription of present embodiment: Al:2.8%, Mo:0.5%, V:0.5%, Zr:0.8%, Fe:0.3%, surplus is Ti and unavoidable impurities, adopts the secondary titanium sponge, Al-V, Al-Mo, sponge Zr, iron nail and aluminium shot, by above-mentioned weight percent batching, batch mixing, be pressed into consumable electrode, in vacuum consumable electricity electric arc furnace, carry out twice melting, wherein a crucible specification is Φ 110mm, melting voltage 27～32V, electric current 2500～3200A; Secondary smelting crucible specification is Φ 150mm, melting voltage 29～31V, electric current 4000～5000A.Ingot casting is swaged into the slab of thickness 80mm through 1100～1200 ℃ of heating, cleaning steel slab surface defective.Be heated to the slab that is rolled into thickness 4.5mm about 950 ℃, be rolled into the slab of thickness 2.8mm about reheat to 850 ℃.Slab is rolled down to 1.8mm through 750 ℃ of annealing, reconditioning on 1200 cold-rolling mills, after 750 ℃/30 ' annealing, finally be cold rolled to 1.18mm, obtains finished product sheet material through operations such as de-oiling, the pickling of annealing alkali.The mechanical property of finished product sheet material sees Table 1.
Table 1 embodiment 1 performance
| Heat treating regime | Rm，，MPa | Rp 0.2，MPa | A 5，％ |
| 600℃/30′ | 785 770 | 770 755 | 26 27 |
| 630℃/30′ | 765 770 | 755 750 | 27 28 |
| 660℃/30′ | 745 730 | 735 725 | 32 34 |
| 690℃/30′ | 735 730 | 725 710 | 33 34 |
| 720℃/30′ | 725 710 | 705 700 | 34 33 |
| 750℃/30′ | 700 705 | 690 685 | 36 38 |
Embodiment 2:
By following prescription: Al:4.0%, Mo:0.6%, V:0.9%, Zr:1.0%, Fe:0.2, surplus is Ti and unavoidable impurities, adopts the secondary titanium sponge, Al-V, Al-Mo, sponge Zr, iron nail and aluminium shot, by above-mentioned weight percent batching, batch mixing, be pressed into consumable electrode, in vacuum consumable electricity electric arc furnace, carry out twice melting, wherein a crucible specification is Φ 110mm, melting voltage 27～35V, electric current 2500～3300A; Secondary smelting crucible specification is Φ 150mm, melting voltage 29～33V, electric current 4000～5300A.Ingot casting is swaged into the slab of thickness 70mm through 1150～1200 ℃ of heating, cleaning steel slab surface defective.Be heated to the slab that is rolled into thickness 4.5mm about 1000 ℃, be rolled into the slab of thickness 2.8mm about reheat to 940 ℃.Slab is rolled down to 1.8mm through 820 ℃ of annealing, reconditioning on 1200 cold-rolling mills, after 820 ℃/30 ' annealing, finally be cold rolled to 1.18mm, obtains finished product sheet material through operations such as de-oiling, the pickling of annealing alkali.The mechanical property of finished product sheet material sees Table 2.
Table 2 embodiment 2 performances
| Heat treating regime | Rm，，MPa | Rp 0.2，MPa | A 5，％ |
| 740℃/30′ | 788 | 778 | 31 |
| 770℃/30′ | 788 | 775 | 30 |
| 800℃/30′ | 790 | 768 | 30 |
| 830℃/30′ | 795 | 755 | 28 |
| 860℃/30′ | 858 | 813 | 24 |
Embodiment 3:
By following prescription: Al:3.4%, Mo:0.3%, V:0.9%, Zr:1.0%, Fe:1.0, surplus is Ti and unavoidable impurities, adopts the secondary titanium sponge, Al-V, Al-Mo, sponge Zr, iron nail and aluminium shot, by above-mentioned weight percent batching, batch mixing, be pressed into consumable electrode, in vacuum consumable electricity electric arc furnace, carry out twice melting, wherein a crucible specification is Φ 110mm, melting voltage 25～35V, electric current 2600～3500A; Secondary smelting crucible specification is Φ 150mm, melting voltage 28～31V, electric current 4000～5000A.Ingot casting is swaged into the slab of thickness 70mm through 1100～1200 ℃ of heating, cleaning steel slab surface defective.Be heated to the slab that is rolled into thickness 4.5mm about 950 ℃, be rolled into the slab of thickness 2.8mm about reheat to 850 ℃.Slab is rolled down to 1.8mm through 750 ℃ of annealing, reconditioning on 1200 cold-rolling mills, after 750 ℃/30 ' annealing, finally be cold rolled to 1.18mm, obtains finished product sheet material through operations such as de-oiling, the pickling of annealing alkali.The mechanical property of finished product sheet material sees Table 3.
Table 3 embodiment 3 performances
| Heat treating regime | Rm，，MPa | Rp 0.2，MPa | A 5，％ |
| 720℃/30′ | 865 860 | 770 760 | 25 27 |
| 750℃/30′ | 860 865 | 750 755 | 26 27 |
| 780℃/30′ | 865 895 | 750 820 | 26 26 |
Experiment shows: from the alloy over-all properties of embodiment 1, embodiment 2 and embodiment 3 as can be seen, of the present invention in the strong high-ductility over-all properties that can weld titanium alloy as follows: Rm:700～895MPa, Rm:685～820MPa, A
5: 20～38%.
Claims (4)
1. strong high-ductility titanium alloy in a kind is characterized in that the weight percent of component is: aluminium is 2～4.5%, molybdenum is 0.1～1.5%, vanadium is 0.1～1.5%, zirconium is 0.5～2%, Fe is 0.1～1.5%, surplus is Ti and unavoidable impurities; Each material component content sum is 100%.
2. strong high-ductility titanium alloy in according to claim 1 is characterized in that the weight percent of component is: aluminium is 2.3～3.7%, molybdenum is 0.3～1.2%, vanadium is 0.3～1.2%, zirconium is 0.5～1.5%, iron is 0.2～1.0%, surplus is Ti and unavoidable impurities; Each material component content sum is 100%.
3. method for preparing strong high-ductility titanium alloy in described in the claim 1～2 any is characterized in that step is as follows:
Step 1: by weight percent batching, the batch mixing of claim 1 or 2, be pressed into consumable electrode;
Step 2: carry out the melting first time in vacuum consumable electricity electric arc furnace, the crucible specification is Φ 110mm, melting voltage 25～35V, electric current 2500～3500A;
Step 3: the smelting pot specification is Φ 150mm for the second time, melting voltage 28～33V, electric current 4000～5300A, the ingot casting of strong high-ductility titanium alloy in obtaining.
One kind with claim 3 described in the ingot casting of strong high-ductility titanium alloy be prepared into the method for ingot casting sheet material, it is characterized in that step is as follows:
Step 1: strong high-ductility titanium alloy ingot casting heats for 1100～1200 ℃ in temperature in inciting somebody to action, and is swaged into the slab of thickness 70～80mm then;
Step 2: after the cleaning steel slab surface defective, continue to be heated to 950～1000 ℃ of slabs that are rolled into thickness 4.5mm;
Step 3: reheat to 850～940 ℃ are rolled into the slab of thickness 2.8mm;
Step 4: the slab that step 3 is obtained is rolled down to 1.8mm through 750～820 ℃ of annealing, reconditioning on 1200 cold-rolling mills;
Step 5: after 750～820 ℃/30 ' annealing, be cold rolled to 1.18mm, obtain finished product sheet material through de-oiling, the pickling of annealing alkali.
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| CNA200910021048XA CN101476059A (en) | 2009-02-03 | 2009-02-03 | Medium-strength and high-ductility titanium alloy |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259254A (en) * | 2011-07-20 | 2011-11-30 | 宝鸡市三立有色金属有限责任公司 | Material used for producing pressure sensor and manufacturing method of pressure sensor |
| CN106513457A (en) * | 2016-11-09 | 2017-03-22 | 宝钛集团有限公司 | Preparation method for near-beta titanium alloy disc spring |
| CN106967897A (en) * | 2016-11-18 | 2017-07-21 | 中国科学院金属研究所 | A kind of novel low-cost, Ti alloy with high performance |
| CN108070740A (en) * | 2017-12-28 | 2018-05-25 | 沈阳大陆激光技术有限公司 | A kind of laser repairing material for repairing titanium alloy spool and valve seat |
| CN111809080A (en) * | 2020-06-23 | 2020-10-23 | 中国科学院金属研究所 | Preparation method of TC2 alloy thin-wall extruded section |
| CN111826549A (en) * | 2020-06-04 | 2020-10-27 | 中国船舶重工集团公司第七二五研究所 | High-toughness titanium alloy and method for preparing bar by using same |
| CN112941278A (en) * | 2021-01-13 | 2021-06-11 | 南京宁欣机械有限公司 | Metal diaphragm stamping process |
| CN113604703A (en) * | 2021-07-09 | 2021-11-05 | 宝鸡安钛泽科技金属有限公司 | Manufacturing method of near-alpha type titanium alloy for golf |
-
2009
- 2009-02-03 CN CNA200910021048XA patent/CN101476059A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102259254A (en) * | 2011-07-20 | 2011-11-30 | 宝鸡市三立有色金属有限责任公司 | Material used for producing pressure sensor and manufacturing method of pressure sensor |
| CN106513457A (en) * | 2016-11-09 | 2017-03-22 | 宝钛集团有限公司 | Preparation method for near-beta titanium alloy disc spring |
| CN106967897A (en) * | 2016-11-18 | 2017-07-21 | 中国科学院金属研究所 | A kind of novel low-cost, Ti alloy with high performance |
| CN106967897B (en) * | 2016-11-18 | 2019-02-19 | 中国科学院金属研究所 | A kind of inexpensive, Ti alloy with high performance |
| CN108070740A (en) * | 2017-12-28 | 2018-05-25 | 沈阳大陆激光技术有限公司 | A kind of laser repairing material for repairing titanium alloy spool and valve seat |
| CN111826549A (en) * | 2020-06-04 | 2020-10-27 | 中国船舶重工集团公司第七二五研究所 | High-toughness titanium alloy and method for preparing bar by using same |
| CN111809080A (en) * | 2020-06-23 | 2020-10-23 | 中国科学院金属研究所 | Preparation method of TC2 alloy thin-wall extruded section |
| CN111809080B (en) * | 2020-06-23 | 2022-07-26 | 中国科学院金属研究所 | Preparation method of TC2 alloy thin-wall extruded section |
| CN112941278A (en) * | 2021-01-13 | 2021-06-11 | 南京宁欣机械有限公司 | Metal diaphragm stamping process |
| CN113604703A (en) * | 2021-07-09 | 2021-11-05 | 宝鸡安钛泽科技金属有限公司 | Manufacturing method of near-alpha type titanium alloy for golf |
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