CN104762526A - Low-cost and high-strength Ti-Zr-Al-F2 alloy - Google Patents
Low-cost and high-strength Ti-Zr-Al-F2 alloy Download PDFInfo
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- CN104762526A CN104762526A CN201510152872.4A CN201510152872A CN104762526A CN 104762526 A CN104762526 A CN 104762526A CN 201510152872 A CN201510152872 A CN 201510152872A CN 104762526 A CN104762526 A CN 104762526A
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Abstract
The invention discloses a zirconium titanate alloy which is low in cost and high in strength, relates to a Ti-Zr-Al-F2 serial alloy prepared by using cheap metal elements, and belongs to the technical field of novel materials. The alloy is characterized in that the alloy just contains low-cost Ti, Zr, Al and Fe elements and particularly comprises the following elements in percentage by weight: 4-5% of Al, 0.25-2.5% of Fe and the balance of Ti and Zr (respectively half) and inevitable impurities. The room-temperature tensile mechanical property indexes are as follows: the tensile strength sigmab is 1200-1500MPa, the yield strength sigma0.2 is 700-1350MPa, and the ductility delta is 7-15%. The alloy disclosed by the invention has the characteristics of being low in cost, high in strength, good in plasticity and free of toxic elements.
Description
Technical field
The present invention relates to Materials science and non ferrous metal and their alloy technical field.Relate to specifically a kind of adopt cheap element to prepare low cost and there is the Ti-Zr-Al-Fe system alloy of high strength.
Background technology
Titanium alloy has the performance of many excellences, and as low density, high specific strength, anticorrosive, middle warm nature can be good, nonmagnetic etc., is a kind of important structural metallic materials, is widely used in the fields such as national defence, Aeronautics and Astronautics, racing car.Specifically the importance of titanium alloy to field development such as national defence, aerospace, automobiles is mainly reflected in the following aspects: the airframe-to-fuel weight ratio 1. reducing aerospace flight vehicle; 2. alleviate weapon weight, increase the service life; 3. aircraft engine volume thrust-weight ratio is improved; 4. the safety and reliability of aerospace flight vehicle is improved.Therefore, the U.S., Russia, Britain, France, Japan etc. employ titanium alloy all in a large number on the equipment such as military space flight device, aircraft, guided missile, warship, weapons of its advanced person, and have the trend progressively increased.Belonging to the India of developing country together with China, in order to improve its military strength, also developing the Ti industry of oneself, and by introducing advanced military weapon and the processing technology of titanium, develop its military affairs titanium alloy.The development of China to Ti industry is also paid much attention to, and has developed a series of high performance titanium alloy, as the superelevation strength titanium alloy of the tensile strength sigma b such as TB8, TC21, BT25Y >=1250MPa in nearly decades; The high-temperature titanium alloys such as Ti55, Ti633G, Ti53311S, Ti-65Nd and Ti60; Ti-V-Cr system Burn-Resistant Titanium Alloy.The application making titanium alloy more extensively and safety.
But due to the price of titanium alloy costliness, make will to lack compared with the metallic substance such as its consumption and traditional iron and steel, aluminium alloy a lot.Research and practice finds, the cost of the alloying element of Ti alloy with high performance costliness accounts for about 40% of total cost, and other vacuum melting and relevant tooling cost account for 60% of total cost.Therefore, replacing the elements such as expensive V, Nb, Mo to prepare high strength titanium alloy with elements such as cheap Fe, Cr, Mn, is the effective way reducing titanium alloy cost.Such as, the U.S. utilizes cheap metal Fe to prepare Timetal 62S (Ti-6Al-1.7Fe-0.1Si) and Timetal LCB (Ti-4.5Al-6.8Mo-1.5Fe) alloy as strengthening element; Equally, Japan's serial low-cost titanium alloy that utilized inexpensive alloy element to prepare, as TFC (Ti-4.3Fe-7.1Cr), TFCA (Ti-4.3Fe-7.1Cr-3.0Al), and SP700 (Ti-4.5Al-3V-2Mo-2Fe) alloy.At present, the research of low cost, high-strength, high-tenacity titanium alloy is remained to important content and the direction of titanium alloy development.
Summary of the invention
The present invention is with titanium-zirconium alloy system for object, and by designing and control metal element A l cheap in alloy system and the content of Fe, employing non-consumable arc furnace melting acquisition is a kind of has the high titanium-zirconium alloy system of cost low strength.
Goal of the invention
The object of the present invention is to provide a kind of cost low and there is the titanium zirconium alloy structured material of high strength, following formulate can be used: aTi-bZr-cAl-dFe.Wherein the variation range of Ti, Zr, Al, Fe content (Wt%) is: a:45-50; B:45-50; C:4.0-5.0; D:0.25-2.5, all the other are impurities in inevitable starting material.
The object of the invention is to be achieved by the following scheme:
Reasonable offer of the present invention adopts non-consumable arc furnace melting four times to ensure uniform composition, obtains Ti-Zr-Al-Fe system alloy pig; Be quickly transferred to after 750-850 DEG C of insulation 5-7min on two rod plane milling trains and carry out twice time rolling deformation, after first passage rolling deformation, again the distortion that 3-5min carries out the second passage is again incubated in above temperature, every time thickness volume under pressure is 4-5mm, finally obtain the plate tensile sample that thickness is about 4mm, add up to rolling maximum ga(u)ge deflection to be 65-75%.After in the end a time rolling, sample is immersed fast (about 20 DEG C) in room temperature water and cool, take out after sample cools completely.Is carried out stripping off the skin in alloy sample surface after rolling and figuring of surface obtain Ti-Zr-Al-Fe system alloy sample.Detect its mechanical property.The room-temperature mechanical property of alloy of the present invention is: tensile strength sigma
b: 1200-1500MPa, yield strength σ
0.2: 700-1350MPa, elongation after fracture δ: 7%-15%.
Room temperature uniaxial tensile test carries out on instron5982 mechanical property testing system, and rate of extension is: 5 × 10
-4s
-1.And measure the length variations of sample in drawing process with extensometer all-the-way tracking.
The component that alloy of the present invention is selected is all cheap, to biological nontoxic side effect, and the titanium of environmentally safe, zirconium, aluminium and ferro element, can be prepared by traditional melting and working method, obtain that cost is low, intensity is high, plasticity is good, the Novel Titanium zirconium alloy of nontoxic pair and pollution.And can by the mechanical property regulating the content of α and β phase to regulate alloy.
Accompanying drawing explanation
Fig. 1 is the dimensioned drawing of alloy tensile sample of the present invention.
Fig. 2 is the XRD figure spectrum of alloy of the present invention.
Fig. 3 is the microtexture picture of alloy of the present invention
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Embodiment 1
Prepare burden by composition 47.5Ti-47.5Zr-4.5Al-0.5Fe (wt%) with technical grade sponge Ti, sponge Zr, pure Al and pure Fe.With non-consumable arc furnace melting four times to ensure uniform composition, be quickly transferred to after 750-850 DEG C of insulation 5-7min on two rod plane milling trains and carry out twice time rolling deformation, after first passage rolling deformation, again the distortion that 3-5min carries out the second passage is again incubated in above temperature, every time thickness volume under pressure is 4-5mm, finally obtain the plate tensile sample that thickness is about 4mm, add up to rolling maximum ga(u)ge deflection to be 65-75%.After in the end a time rolling, sample is immersed fast (about 20 DEG C) in room temperature water and cool, taking-up after sample cools completely, is undertaken stripping off the skin by the alloy sample surface after rolling and figuring of surface obtains Ti-Zr-Al-Fe system alloy sample.Be processed into sample to test.Test the data of its mechanical property in example in table 11.
Embodiment 2
Prepare burden by composition 47.25Ti-47.25Zr-4.5Al-1.0Fe (wt%) with technical grade sponge Ti, sponge Zr, pure Al and pure Fe.With non-consumable arc furnace melting four times to ensure uniform composition, be quickly transferred to after 750-850 DEG C of insulation 5-7min on two rod plane milling trains and carry out twice time rolling deformation, after first passage rolling deformation, again the distortion that 3-5min carries out the second passage is again incubated in above temperature, every time thickness volume under pressure is 4-5mm, finally obtain the plate tensile sample that thickness is about 4mm, add up to rolling maximum ga(u)ge deflection to be 65-75%.After in the end a time rolling, sample is immersed fast (about 20 DEG C) in room temperature water and cool, taking-up after sample cools completely, is undertaken stripping off the skin by the alloy sample surface after rolling and figuring of surface obtains Ti-Zr-Al-Fe system alloy sample.Be processed into sample to test.Test the data of its mechanical property in example in table 12.
Embodiment 3
Prepare burden by composition 47.0Ti-47.0Zr-4.5Al-1.5Fe (wt%) with technical grade sponge Ti, sponge Zr, pure Al and pure Fe.With non-consumable arc furnace melting four times to ensure uniform composition, be quickly transferred to after 750-850 DEG C of insulation 5-7min on two rod plane milling trains and carry out twice time rolling deformation, after first passage rolling deformation, again the distortion that 3-5min carries out the second passage is again incubated in above temperature, every time thickness volume under pressure is 4-5mm, finally obtain the plate tensile sample that thickness is about 4mm, add up to rolling maximum ga(u)ge deflection to be 65-75%.After in the end a time rolling, sample is immersed fast (about 20 DEG C) in room temperature water and cool, taking-up after sample cools completely, is undertaken stripping off the skin by the alloy sample surface after rolling and figuring of surface obtains Ti-Zr-Al-Fe system alloy sample.Be processed into sample to test.Test the data of its mechanical property in example in table 13.
Embodiment 4
Prepare burden by composition 46.75Ti-46.75Zr-4.5Al-2.0Fe (wt%) with technical grade sponge Ti, sponge Zr, pure Al and pure Fe.With non-consumable arc furnace melting four times to ensure uniform composition, be quickly transferred to after 750-850 DEG C of insulation 5-7min on two rod plane milling trains and carry out twice time rolling deformation, after first passage rolling deformation, again the distortion that 3-5min carries out the second passage is again incubated in above temperature, every time thickness volume under pressure is 4-5mm, finally obtain the plate tensile sample that thickness is about 4mm, add up to rolling maximum ga(u)ge deflection to be 65-75%.After in the end a time rolling, sample is immersed fast (about 20 DEG C) in room temperature water and cool, taking-up after sample cools completely, is undertaken stripping off the skin by the alloy sample surface after rolling and figuring of surface obtains Ti-Zr-Al-Fe system alloy sample.Be processed into sample to test.Test the data of its mechanical property in example in table 14.
Table 1 Ti-Zr-Al-Fe system alloy mechanical property test result
Claims (2)
1. the Ti-Zr-Al-Fe system alloy of the low high strength of cost, it is characterized in that its alloying element and weight percent consist of: metallic aluminium: 4%-5%, metallic iron: 0.25-2.5%, surplus is titanium and zirconium (respectively accounting for 50% of surplus) and inevitable impurity.
2. the Ti-Zr-Al-Fe system alloy of low-cost high-strength according to claim 1, it is characterized in that its alloying element and weight percent consist of: metallic aluminium: 4.25%-4.75%, metallic iron: 0.5-2.0%, surplus is titanium and zirconium (respectively accounting for 50% of surplus) and inevitable impurity.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463253A (en) * | 2015-12-25 | 2016-04-06 | 燕山大学 | Low-expansion-coefficient zirconium alloy and preparation method thereof |
| CN106222486A (en) * | 2016-10-08 | 2016-12-14 | 燕山大学 | A kind of high intensity zirconium titanium ferro-aluminum vanadium alloy and preparation method thereof |
| CN107828988A (en) * | 2017-12-11 | 2018-03-23 | 北京科技大学 | A kind of inexpensive Ti Zr based high-temperature shape memory alloys and preparation method thereof |
| CN111809081A (en) * | 2020-07-23 | 2020-10-23 | 河北科技师范学院 | High-strength and high-plasticity ZrTiAlNb zirconium-based alloy and preparation method thereof |
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| US4040129A (en) * | 1970-07-15 | 1977-08-09 | Institut Dr. Ing. Reinhard Straumann Ag | Surgical implant and alloy for use in making an implant |
| JPS60224727A (en) * | 1984-04-24 | 1985-11-09 | Haruyuki Kawahara | Ti-zr sintered alloy |
| CN101935776A (en) * | 2010-09-30 | 2011-01-05 | 洛阳双瑞精铸钛业有限公司 | Beta titanium alloy material and preparation method thereof |
| CN103602840A (en) * | 2013-11-05 | 2014-02-26 | 燕山大学 | Preparation method of titanium zirconium base alloy |
| CN104018104A (en) * | 2014-05-29 | 2014-09-03 | 燕山大学 | Hot processing method for reducing high strength zircaloy forging deformation resistance |
-
2015
- 2015-03-26 CN CN201510152872.4A patent/CN104762526B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4040129A (en) * | 1970-07-15 | 1977-08-09 | Institut Dr. Ing. Reinhard Straumann Ag | Surgical implant and alloy for use in making an implant |
| JPS60224727A (en) * | 1984-04-24 | 1985-11-09 | Haruyuki Kawahara | Ti-zr sintered alloy |
| CN101935776A (en) * | 2010-09-30 | 2011-01-05 | 洛阳双瑞精铸钛业有限公司 | Beta titanium alloy material and preparation method thereof |
| CN103602840A (en) * | 2013-11-05 | 2014-02-26 | 燕山大学 | Preparation method of titanium zirconium base alloy |
| CN104018104A (en) * | 2014-05-29 | 2014-09-03 | 燕山大学 | Hot processing method for reducing high strength zircaloy forging deformation resistance |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463253A (en) * | 2015-12-25 | 2016-04-06 | 燕山大学 | Low-expansion-coefficient zirconium alloy and preparation method thereof |
| CN106222486A (en) * | 2016-10-08 | 2016-12-14 | 燕山大学 | A kind of high intensity zirconium titanium ferro-aluminum vanadium alloy and preparation method thereof |
| CN107828988A (en) * | 2017-12-11 | 2018-03-23 | 北京科技大学 | A kind of inexpensive Ti Zr based high-temperature shape memory alloys and preparation method thereof |
| CN111809081A (en) * | 2020-07-23 | 2020-10-23 | 河北科技师范学院 | High-strength and high-plasticity ZrTiAlNb zirconium-based alloy and preparation method thereof |
| CN111809081B (en) * | 2020-07-23 | 2021-10-29 | 河北科技师范学院 | High-strength and high-plasticity ZrTiAlNb zirconium titanium-based alloy and preparation method thereof |
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| CN104762526B (en) | 2017-02-22 |
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