CN108277447A - A kind of preparation method of titanium alloy plate - Google Patents

A kind of preparation method of titanium alloy plate Download PDF

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Publication number
CN108277447A
CN108277447A CN201810185493.9A CN201810185493A CN108277447A CN 108277447 A CN108277447 A CN 108277447A CN 201810185493 A CN201810185493 A CN 201810185493A CN 108277447 A CN108277447 A CN 108277447A
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CN
China
Prior art keywords
temperature
titanium alloy
preparation
alloy plate
forging
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CN201810185493.9A
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Chinese (zh)
Inventor
马凤华
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Beijing China Airlines Xinxin Technology Co Ltd
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Beijing China Airlines Xinxin Technology Co Ltd
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Priority to CN201810185493.9A priority Critical patent/CN108277447A/en
Publication of CN108277447A publication Critical patent/CN108277447A/en
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    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22FCHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
    • C22F1/00Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
    • C22F1/16Changing 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
    • C22F1/18High-melting or refractory metals or alloys based thereon
    • C22F1/183High-melting or refractory metals or alloys based thereon of titanium or alloys based thereon
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C1/00Making non-ferrous alloys
    • C22C1/02Making non-ferrous alloys by melting
    • C22C1/03Making non-ferrous alloys by melting using master alloys
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22CALLOYS
    • C22C14/00Alloys based on titanium

Abstract

The present invention relates to titanium alloy preparing technical fields, more particularly, to a kind of preparation method of titanium alloy plate.The preparation method includes the following steps:Ingot blank is just forged, and initial 1000 DEG C~1100 DEG C of the forging temperature of two fire time of forging, first pass deformation is 10~60%;Two fire time forging temperatures are 800~900 DEG C, and total deformation is more than 60%;Forging stock carries out destressing and α phase Tempering and Quenchings, heat preservation postcooling to room temperature;Remove forging stock surface scale;Hot rolling treatment, 600 DEG C~900 DEG C of hot-rolled temperature, 1~10%, total deformation is more than 50%, and commutation rolling is carried out when hot rolling treatment for first pass deformation control;Cold-rolling treatment, total deformation are 15~25%;Ageing treatment, temperature are 300 DEG C~450 DEG C, keep the temperature 3.5~6h.This method is simple and practicable, and technology stability is strong, by carrying out densification to ingot casting, and passes through rolling and the control of heat treatment condition, obtains the titanium alloy of different tough ranks.

Description

A kind of preparation method of titanium alloy plate
Technical field
The present invention relates to titanium alloy preparing technical fields, more particularly, to a kind of preparation method of titanium alloy plate.
Background technology
In recent years, the demand of China's titanium increases sharply, it has also become the third-largest titanium products after US and European Country of consumption.According to another the current entire titanium or titanium alloy Strip market applicable cases of relevant statistics analysis, maximum user is stone Oily chemical field accounts for about the 60% of titanium plate band total amount consumed, other are followed successively by aerospace field, accounts for about 15%, sport is used Conduct industry accounts for 6%, and sea water desalination, nuclear power field account for 5%, and naval vessel and marine engineering equipment field account for 5%, and other fields account for about 9%.
Currently, titanium and titanium-base alloy be in a variety of applications, reason is that these materials have relatively high intensity, low close Degree and good corrosion resistance.For example, titanium and titanium-base alloy because high intensity, weight ratio and the corrosion resistance of this material and widely For in aerospace industry.But the synthesis mechanics ability of titanium-base alloy is not ideal enough at present, processing technology is complicated, is unfavorable for pushing away Extensively with application.
The information for being disclosed in the background technology part is merely intended to deepen understanding of the general background technology to the present invention, and It is not construed as recognizing or implying in any form that the information constitutes the prior art known to those skilled in the art.
Invention content
The purpose of the present invention is to provide a kind of preparation methods of titanium alloy plate, to solve existing in the prior art add Work complex process, the not ideal enough technical problem of the synthesis mechanics ability of titanium-base alloy.
To achieve the goals above, the present invention uses following technical scheme:
The present invention provides a kind of preparation method of titanium alloy plate comprising following steps:
S1, ingot blank are just forged, two initial 1000 DEG C~1100 DEG C of the forging temperatures of fire time of forging, and first pass deformation is 10~ 60%;Two fire time forging temperatures are 800~900 DEG C, and total deformation is more than 60%;
S2, forging stock carry out destressing and α phase Tempering and Quenchings, heat preservation postcooling to room temperature;
S3, removal forging stock surface scale;
S4, hot rolling treatment, 600 DEG C~900 DEG C of hot-rolled temperature, 1~10%, total deformation is big for first pass deformation control In 50%, and commutation rolling is carried out when hot rolling treatment;
S5, cold-rolling treatment, total deformation are 15~25%;
S6, ageing treatment, temperature are 300 DEG C~450 DEG C, keep the temperature 3.5~6h.
As a kind of further technical solution, before step S1, the raw material for manufacturing titanium alloy plate is passed through Alloy packet, electrode compacting, the weldering of plasma group are packed, ingot blank most is made through consumable electrode vacuum furnace melting three times afterwards.
As a kind of further technical solution, aluminium molybdenum intermediate alloy, aluminium shot, titanium tin intermediate alloy, chromium simple substance, titanium Iron intermediate alloy and titanium sponge are as the raw material for manufacturing titanium alloy plate.
As a kind of further technical solution, temperature can be controlled at 1200 DEG C -1500 DEG C when melting, and refining time can To control in 20min-40min.
As a kind of further technical solution, in step S2, the temperature of heat treatment is controlled at 650 DEG C~900 DEG C, heat preservation 1.5~4 hours, heat preservation postcooling to room temperature.
As a kind of further technical solution, in step S3, bead is carried out using steel ball and removes forging stock Surface Oxygen Change skin.
As a kind of further technical solution, in step S3, the forging stock to removing surface scale carries out pickling, pickling Temperature is 50 DEG C~55 DEG C.
Using above-mentioned technical proposal, the present invention has the advantages that:The preparation of titanium alloy plate provided by the invention Method, method is simple and practicable, and technology stability is strong.By carrying out densification to ingot casting, and by rolling and being heat-treated The control of process conditions obtains the titanium alloy of different tough ranks.Moreover, having by titanium alloy plate prepared by this method good Good comprehensive mechanical property is conducive to promote and apply.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the parallel tables of titanium alloy material under different technology conditions provided in an embodiment of the present invention;
Fig. 2 is the mechanical experimental results parallel tables of each technique titanium alloy material provided in an embodiment of the present invention.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
The specific implementation mode of the present invention is described in detail below in conjunction with attached drawing.It should be understood that this place is retouched The specific implementation mode stated is merely to illustrate and explain the present invention, and is not intended to restrict the invention.
The present embodiment provides a kind of preparation methods of titanium alloy plate comprising following steps:
S1, ingot blank are just forged, two initial 1000 DEG C~1100 DEG C of the forging temperatures of fire time of forging, and first pass deformation is 10~ 60%;Two fire time forging temperatures are 800~900 DEG C, and total deformation is more than 60%;Specifically, alloy cast ingot strips off the skin by surface And forging stock is made in forging after cutting riser, including;Cogging is forged and two fire forge, and cogging forging and two fire forgings can be two piers Two pull out forging.
S2, forging stock carry out destressing and α phase Tempering and Quenchings, heat preservation postcooling to room temperature;
Specifically, the temperature of heat treatment is controlled at 400 DEG C~650 DEG C, 1~2 hour is kept the temperature, heat preservation postcooling to room temperature.
Preferably, in annealing, titanium alloy slab is sent into annealing furnace, and be evacuated to vacuum degree 10Pa;It Annealing furnace is warming up to 380 DEG C afterwards, is then slowly heated up to annealing furnace with the speed of 2 DEG C/min, until being warming up to 580 DEG C Constant temperature 2h afterwards is constantly protected by nitrogen in thermostatic process, and the nitrogen flow being passed through is 300ml/min;After constant temperature, Cooled down again with the speed of 5 DEG C/min, until being cooled to 100 DEG C, then takes out titanium alloy slab.
S3, removal forging stock surface scale;
As a kind of further technical solution, bead is carried out using steel ball and removes plate surface oxide skin.Moreover, Pickling can also be carried out to the plank for removing surface scale, pickling temperature is 50 DEG C~55 DEG C.
Further, 3~5mm steel balls may be used and carry out bead removing plate surface oxide skin, and carry out acid It washes, volume of preparation HF:HNO3:H2O=5:10:80, HF and HNO3Purity be technical pure, pickling temperature be 55 DEG C.
S4, hot rolling treatment, 600 DEG C~900 DEG C of hot-rolled temperature, 1~10%, total deformation is big for first pass deformation control In 50%, and commutation rolling is carried out when hot rolling treatment, commutation rolling can obviously improve the processing texture of plank, improve the equal of tissue Even property and plasticity;
S5, cold-rolling treatment, total deformation are 15~25%;
In cold rolling, cold-rolling property evaluation can be carried out to plank, whether the surface end for observing cold-reduced sheet has crackle.For right In the material not cracked in cold rolling, heat treatment in 700 DEG C × 30 minutes is carried out in argon gas atmosphere, is passing through cold rolling To 1~2mm of thickness and then the secondary heat treatment for carrying out 700 DEG C × 30 minutes in argon gas atmosphere.
S6, ageing treatment, temperature are controlled at 300 DEG C~450 DEG C, keep the temperature 3.5~6h.
As it can be seen that the preparation method of titanium alloy plate provided by the invention, method is simple and practicable, and technology stability is strong.Pass through Densification is carried out to ingot casting, and by rolling the control with heat treatment condition, obtains the titanium of different tough ranks Alloy.Moreover, there is good comprehensive mechanical property by titanium alloy plate prepared by this method, it is conducive to promote and application. In the present embodiment, in combination with shown in Fig. 1 to Fig. 2, the mechanical property (tensile strength under different disposal technique and different process is listed Rm, yield strength Rp0.2, elongation A), by ingot casting carry out densification, and pass through rolling and heat treatment process item The control of part obtains the titanium alloy of different tough ranks.
It is worth noting that by the above method, the titanium alloy of a variety of tough ranks of difference can be prepared, such as:One Kind of new titanium alloy plank, by following weight percentage at being grouped as:5.5%~7.5%Al, 0.5%~2%Cr, 0.8%~2.8%Fe, 0.5%~1.5%Mo, 0.8%~2%Sn, surplus are Ti and inevitable impurity.It is corresponding, In the present embodiment, before step S1, by for manufacture the raw material of titanium alloy plate through packing alloy packet, electrode compacting, etc. Ion group is welded, and ingot blank most is made through consumable electrode vacuum furnace melting three times afterwards.
Wherein, aluminium molybdenum intermediate alloy, aluminium shot, titanium tin intermediate alloy, chromium simple substance, ferrotianium intermediate alloy and titanium sponge As the raw material for manufacturing titanium alloy plate.
Wherein, temperature can be controlled at 1200 DEG C -1500 DEG C when melting, and refining time can be controlled in 20min-40min. Preferably, in fusion process, to obtain ideal alloying component, according to the difference of each consumable electrode vacuum furnace, Al adds 0.1%~ 0.15%, Sn add 0.15%~0.2%, and in electrode pressing block, material each element end to end adds 0.01%~0.05%, protects Demonstrate,prove the uniformity of ingot casting ingredient.
In the present embodiment, which includes inevitable nonmetalloid O, N, C, H.Wherein, from The angle of ductility is set out, and the weight percentage of O is controlled 0.25% hereinafter, the weight percentage of H is controlled 0.05% Hereinafter, the weight percentage of C is controlled 0.1% hereinafter, the weight percentage of N controls below 0.1%.In addition, this is not Evitable miscellaneous particularly as can include but is not limited to niobium, rhenium, yttrium, cerium, weight percentage can be not higher than 0.15%.
Moreover, in the present embodiment, which can also be improved and become on the basis of above-mentioned material Shape illustrates.
The titanium alloy plate is by following weight percentage at being grouped as:5.5%~7.5%Al, 0.5%~2%Cr, 0.8%~2.8%Fe, 0.5%~1.5%Mo, 0.8%~2%Sn, 0.5%~2%V, 0.5%~2%Ta, 0.5%~ 2%Co, surplus are Ti and inevitable impurity.Preferably, in above-mentioned material, the amount contained by V, Fe, Mo, Cr is being set The weight % of contained V is Xv, the weight % of contained Fe is XFe, the weight % of contained Mo is XMo, contained The weight % of Cr is XCrWhen by Xv+2.9XFe+1.5XMo+1.6XCrThe value of expression is 17~20%, more preferable so as to reach Intensity.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that:Its according to So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into Row equivalent replacement;And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (7)

1. a kind of preparation method of titanium alloy plate, which is characterized in that include the following steps:
S1, ingot blank are just forged, and initial 1000 DEG C~1100 DEG C of the forging temperature of two fire time of forging, first pass deformation is 10~60%; Two fire time forging temperatures are 800~900 DEG C, and total deformation is more than 60%;
S2, forging stock carry out destressing and α phase Tempering and Quenchings, heat preservation postcooling to room temperature;
S3, removal forging stock surface scale;
S4, hot rolling treatment, 600 DEG C~900 DEG C of hot-rolled temperature, 1~10%, total deformation is more than for first pass deformation control 50%, and commutation rolling is carried out when hot rolling treatment;
S5, cold-rolling treatment, total deformation are 15~25%;
S6, ageing treatment, temperature are 300 DEG C~450 DEG C, keep the temperature 3.5~6h.
2. the preparation method of titanium alloy plate according to claim 1, which is characterized in that before step S1, will be used for The raw material of manufacture titanium alloy plate is most molten through consumable electrode vacuum furnace three times afterwards by packing alloy packet, electrode compacting, the weldering of plasma group Refine into ingot blank.
3. the preparation method of titanium alloy plate according to claim 2, which is characterized in that aluminium molybdenum intermediate alloy, aluminium Beans, titanium tin intermediate alloy, chromium simple substance, ferrotianium intermediate alloy and titanium sponge are as the raw material for manufacturing titanium alloy plate.
4. the preparation method of titanium alloy plate according to claim 2, which is characterized in that temperature control is 1200 when melting DEG C -1500 DEG C, refining time is controlled in 20min-40min.
5. the preparation method of titanium alloy plate according to claim 1, which is characterized in that in step S2, the temperature of heat treatment Degree control keeps the temperature 1.5~4 hours at 650 DEG C~900 DEG C, heat preservation postcooling to room temperature.
6. the preparation method of titanium alloy plate according to claim 1, which is characterized in that in step S3, using steel ball into Row bead removes forging stock surface scale.
7. the preparation method of titanium alloy plate according to claim 6, which is characterized in that in step S3, to removing surface The forging stock of oxide skin carries out pickling, and pickling temperature is 50 DEG C~55 DEG C.
CN201810185493.9A 2018-03-07 2018-03-07 A kind of preparation method of titanium alloy plate Pending CN108277447A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112238152A (en) * 2020-08-13 2021-01-19 陕西天成航空材料有限公司 Preparation method of wide and super-thick TC4 titanium alloy plate
CN114058900A (en) * 2020-07-30 2022-02-18 宝武特种冶金有限公司 Titanium alloy containing aluminum and manganese elements, cold-rolled single sheet and preparation method thereof
CN116770116A (en) * 2023-08-17 2023-09-19 成都先进金属材料产业技术研究院股份有限公司 Weak texture TA18 titanium alloy bar and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103045978A (en) * 2012-11-19 2013-04-17 中南大学 Preparation method of TCl8 titanium alloy plate
CN104946928A (en) * 2015-06-11 2015-09-30 中国航空工业集团公司北京航空材料研究院 Titanium alloy with easily refined grains and preparing method thereof
CN106955893A (en) * 2017-03-17 2017-07-18 中国航发北京航空材料研究院 A kind of superplastic forming processing method of SP700 titanium-alloy thin-plates
CN107747002A (en) * 2017-11-01 2018-03-02 五华县新锐科技有限公司 A kind of titanium alloy and its manufacture method applied to sporting goods

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103045978A (en) * 2012-11-19 2013-04-17 中南大学 Preparation method of TCl8 titanium alloy plate
CN104946928A (en) * 2015-06-11 2015-09-30 中国航空工业集团公司北京航空材料研究院 Titanium alloy with easily refined grains and preparing method thereof
CN106955893A (en) * 2017-03-17 2017-07-18 中国航发北京航空材料研究院 A kind of superplastic forming processing method of SP700 titanium-alloy thin-plates
CN107747002A (en) * 2017-11-01 2018-03-02 五华县新锐科技有限公司 A kind of titanium alloy and its manufacture method applied to sporting goods

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114058900A (en) * 2020-07-30 2022-02-18 宝武特种冶金有限公司 Titanium alloy containing aluminum and manganese elements, cold-rolled single sheet and preparation method thereof
CN112238152A (en) * 2020-08-13 2021-01-19 陕西天成航空材料有限公司 Preparation method of wide and super-thick TC4 titanium alloy plate
CN116770116A (en) * 2023-08-17 2023-09-19 成都先进金属材料产业技术研究院股份有限公司 Weak texture TA18 titanium alloy bar and preparation method thereof
CN116770116B (en) * 2023-08-17 2023-12-01 成都先进金属材料产业技术研究院股份有限公司 Weak texture TA18 titanium alloy bar and preparation method thereof

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