WO2001000887A2 - PROCEDE DE LAMINAGE D'EBAUCHE EN ALLIAGES η + α2 HYPER-EUTECTOIDES ET PROCEDE DE PRODUCTION D'EBAUCHES PERMETTANT DE METTRE EN OEUVRE CE PROCEDE - Google Patents

PROCEDE DE LAMINAGE D'EBAUCHE EN ALLIAGES η + α2 HYPER-EUTECTOIDES ET PROCEDE DE PRODUCTION D'EBAUCHES PERMETTANT DE METTRE EN OEUVRE CE PROCEDE Download PDF

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WO2001000887A2
WO2001000887A2 PCT/RU2000/000236 RU0000236W WO0100887A2 WO 2001000887 A2 WO2001000887 A2 WO 2001000887A2 RU 0000236 W RU0000236 W RU 0000236W WO 0100887 A2 WO0100887 A2 WO 0100887A2
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deφορmatsii
πρi
temperature
izοτeρmichesκiχ
chτο
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PCT/RU2000/000236
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Russian (ru)
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WO2001000887A3 (fr
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Renat Mazitovich Imaev
Oskar Akramovich Kaibyshev
Gennady Alexeevich Salischev
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Institut Problem Sverkhplastichnosti Metallov Ran
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Priority to AU55810/00A priority Critical patent/AU5581000A/en
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Publication of WO2001000887A3 publication Critical patent/WO2001000887A3/fr

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    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals

Definitions

  • the invention is subject to the processing of metals and pressure alloys, in particular.
  • processing alloys on the basis of titanium aluminides ⁇ ( ⁇ phase) and creme york 3 ⁇ 1 ( ⁇ phase) obtained by casting or by method of metal processing. It can be used to obtain a sheet and foil from a regulated structure.
  • Zaev ⁇ e ⁇ idnye s ⁇ lavy on ⁇ sn ⁇ ve ⁇ + ⁇ ⁇ az (hereinafter ⁇ + ⁇ 2 s ⁇ lavy) ⁇ a ⁇ a ⁇ e ⁇ izuyu ⁇ sya vys ⁇ y zha ⁇ chn ⁇ s ⁇ yu and zha ⁇ s ⁇ y ⁇ s ⁇ yu, ch ⁇ in s ⁇ che ⁇ anii with niz ⁇ im specific ves ⁇ m delae ⁇ i ⁇ very ⁇ ivle ⁇ a ⁇ elnymi for vys ⁇ em ⁇ e ⁇ a ⁇ u ⁇ n ⁇ g ⁇ ⁇ imeneniya. Is the use of ⁇ + ⁇ the most efficient? alloys in aviation and aerospace devices.
  • the method is known [ ⁇ . ⁇ réelle everybody ⁇ . ⁇ . ⁇ réelle ⁇ ⁇ ⁇ ⁇ ,. ⁇ a ⁇ , ⁇ .- ⁇ . ⁇ ag ⁇ , and ⁇ ⁇ .
  • first-hand materials usually contain micro-particles inside and separate grains. Shortcuts do not get lost.
  • the use of an industrial product significantly increases the cost of processing. Therefore, considerable efforts are currently directed at the manufacture of sheets from the castings of ⁇ + ss alloys.
  • the written method has a number of disadvantages associated with the use of high speed deformations in the ( ⁇ + ⁇ ) phase region of the alloys.
  • ⁇ As a result of a homogenized firing in the material, a compacted composite is formed. P ⁇ i ⁇ sleduyuschey vys ⁇ s ⁇ s ⁇ n ⁇ y ⁇ vazi-iz ⁇ e ⁇ miches ⁇ y de ⁇ matsii ⁇ is ⁇ di ⁇ ⁇ ans ⁇ matsiya e ⁇ y s ⁇ u ⁇ u ⁇ y in mel ⁇ ze ⁇ nis ⁇ uyu ⁇ avn ⁇ snuyu mi ⁇ s ⁇ u ⁇ u ⁇ u (in ⁇ ezul ⁇ a ⁇ e ⁇ azvi ⁇ iya dinamiches ⁇ y and ⁇ s ⁇ dinamiches ⁇ y ⁇ e ⁇ is ⁇ allizatsii).
  • ⁇ dna ⁇ ⁇ dn ⁇ a ⁇ naya de ⁇ matsiya not m ⁇ zhe ⁇ ⁇ bes ⁇ echi ⁇ ⁇ lnuyu ⁇ ab ⁇ u sli ⁇ a: ⁇ s ⁇ ayu ⁇ sya ne ⁇ e ⁇ is ⁇ alliz ⁇ vannye ⁇ blas ⁇ i in zas ⁇ yny ⁇ z ⁇ na ⁇ and ⁇ a ⁇ zhe ⁇ delny ⁇ ze ⁇ na ⁇ ( ⁇ l ⁇ niya ⁇ ) neblag ⁇ iya ⁇ n ⁇ ⁇ ien ⁇ i ⁇ vanny ⁇ for ⁇ azvi ⁇ iya dinamiches ⁇ y and s ⁇ ve ⁇ s ⁇ venn ⁇ , ⁇ s ⁇ dinamiches ⁇ y ⁇ e ⁇ is ⁇ allizatsii.
  • the third part is: ⁇ ) an absent-minded structure is related to the development of a separate, third-party concession system; ⁇ ) strong s ⁇ l ⁇ nn ⁇ s ⁇ e ⁇ i ⁇ s ⁇ lav ⁇ v ⁇ dend ⁇ i ⁇ n ⁇ y li ⁇ vatsii ⁇ busl ⁇ vlennaya presence dv ⁇ yn ⁇ g ⁇ ⁇ as ⁇ ada ⁇ e ⁇ i ⁇ e ⁇ iches ⁇ i ⁇ ⁇ ea ⁇ tsy and III) u ⁇ myanu ⁇ e v ⁇ e susches ⁇ venn ⁇ e ⁇ azlichie de ⁇ matsi ⁇ nny ⁇ ⁇ a ⁇ a ⁇ e ⁇ is ⁇ i ⁇ s ⁇ u ⁇ u ⁇ ny ⁇ s ⁇ s ⁇ avlyayuschi ⁇ ( ⁇ las ⁇ incha ⁇ y ⁇ avn ⁇ sn ⁇ y and ⁇ ) and ⁇ az ( ⁇ and ⁇ ).
  • ⁇ ⁇ ezul ⁇ a ⁇ e were ⁇ lucheny lis ⁇ y shi ⁇ in ⁇ y d ⁇ 150 mm and 0.75 mm ⁇ lschin ⁇ y d ⁇ .
  • the task of the invention is concluded in the development of a method for extracting from ⁇ + ⁇ alloys onto a sheet and a foil with a regulated process.
  • the objective of the invention is also the preparation of small-scale industrial processes in the original procurement for the implementation of the process.
  • An additional objective of the invention is to increase the economic efficiency of the method of emitting sheets and foils from these alloys.
  • P ⁇ s ⁇ avlennaya task ⁇ eshae ⁇ sya s ⁇ s ⁇ b ⁇ m ⁇ a ⁇ i zag ⁇ v ⁇ of zaev ⁇ e ⁇ idny ⁇ ⁇ + ⁇ 2 s ⁇ lav ⁇ v, ⁇ lichayuschimsya ⁇ em, ch ⁇ in ⁇ aches ⁇ ve is ⁇ dn ⁇ y vybi ⁇ ayu ⁇ zag ⁇ v ⁇ u with ⁇ edva ⁇ i ⁇ eln ⁇ ⁇ dg ⁇ vlenn ⁇ y mel ⁇ ze ⁇ nis ⁇ y s ⁇ u ⁇ u ⁇ y, ⁇ a ⁇ u on lis ⁇ or ⁇ lyu with zadann ⁇ y ⁇ lschin ⁇ y and ⁇ azme ⁇ m ze ⁇ en ⁇ susches ⁇ vlyayu ⁇ in in ⁇ e ⁇ vale s ⁇ s ⁇ ey de ⁇ matsii 10 ° -1 ⁇ ' "1 and ⁇ em ⁇ e ⁇ a ⁇ u ⁇
  • the preparation process is carried out by the equal-channel angular pressure distribution at an angle ⁇ between the channels 90 ° ⁇ ⁇ 150 °.
  • the prefabrication is carried out on an equal-channel corner with the opening of the door after opening the door after each pref.
  • Inventory is available on a machine equipped with a machine for heating rolls.
  • the presence of thermal conditions makes it possible to handle the use of the device with a relatively low speed. This does not only make it easier to handle such non-plastic materials as ⁇ + ⁇ 2 alloys. It is easy to keep the equipment in good condition, which was achieved by the previous processing unit. More than that, baking in the isothermal conditions makes it possible to additionally grind the microprocessor in the sheet and thereby. to substantially facilitate the next step in its handling of the foil.
  • Another important advantage of the product in the thermal environment is that it can be used without the need for a vehicle.
  • the unit is equipped with a remote control unit and the unit is connected to a unit for the preparation of the unit. 0 .
  • the process may be reduced by ⁇ 0 , or a reduced by a value of ⁇ .. ⁇
  • speed up the paths and choose in such a way as to avoid the disturbance of the sheet.
  • Reducing the temperature of the process is important with two points of view. It helps to reduce the thickness of the acidified sheet in the sheet (which is only removed after irradiation of the sheet) and to ensure additional shredding of the medium. In this case, the tempera- ture-fast modes are not only selected from the storage system, but also because of the over-occupancy 1 1 of the industry due to dynamic recalculation. Reducing the size of the grain increases the productive capacity of the material and, thanks to this, at the next stage of the process, the process can be reduced and reduced. As a result, after the first stage in the resulting sheet, a submicron size is reached.
  • ⁇ + ⁇ 2 alloys have a high deformation capacity due to the temperature of 600 ° C, which is very important.
  • Raising the temperature of the process at any stage will increase the speed of the performance and, thereby, increase its productivity.
  • ⁇ it is impossible to allow such a growth to be small due to the statistical recalculation, which would increase by a noticeable decrease in + 2 .
  • + ⁇ + ⁇ ⁇ e it is impossible to allow such a growth to be small due to the statistical recalculation, which would increase by a noticeable decrease in + 2 .
  • the temperature is heated by a short “package”. depends on the temperature of the rolls. For warm or cold rolls, the ⁇ value is also taken out of the operation of the acceptable growth rate due to the static recalculation. If the roll temperature sensor is sufficiently high, the “package” temperature switch may even be lower than ⁇ 0 by ⁇ .
  • the "package” download is conducted at a speed of 10 " -10 s " 1 . The higher the temperature 12 rolls, therefore, at a lower speed, it is possible to lower the speed of the treatment and, moreover, the uniform speed of the drive is in the sheet. After making payments to the sheet in the quasi-thermal conditions, the next processing of the sheet should be avoided.
  • Bidding in the case of thermal conditions allows for one step to emit sheets with a thickness of up to 0.5 mm.
  • the following should be taken as much as possible below - it is very expensive.
  • the other, radical way of protecting the sheet from oxidation is associated with the use of the file.
  • To obtain a sheet up to 0.5 mm thick it is possible to carry out a batch in two stages. In the first place, it is advisable to use the high yield in quasi-thermal conditions.
  • ⁇ ⁇ tsesse ⁇ a ⁇ i ⁇ me ⁇ e reduce ⁇ lschiny ⁇ a ⁇ e ⁇ a and s ⁇ ve ⁇ s ⁇ venn ⁇ , increasing eg ⁇ length " ⁇ vazi-iz ⁇ e ⁇ michn ⁇ s ⁇ " u ⁇ udshae ⁇ sya and tseles ⁇ b ⁇ azn ⁇ ⁇ e ⁇ ey ⁇ i ⁇ v ⁇ mu e ⁇ a ⁇ u ⁇ a ⁇ i - in iz ⁇ e ⁇ miches ⁇ i ⁇ usl ⁇ viya ⁇ , ⁇ uyu m ⁇ zhn ⁇ ⁇ susches ⁇ vlya ⁇ ⁇ a ⁇ in ⁇ b ⁇ l ⁇ ch ⁇ e, ⁇ a ⁇ and without it, n ⁇ ⁇ i b ⁇ lee niz ⁇ y ⁇ em ⁇ e ⁇ a ⁇ u ⁇ e .
  • sheet printing is carried out at the foil and at a relatively high temperature. This ensures a high degree of availability of material and the ability to process without intermittent firing.
  • 14 • ⁇ lga ⁇ lschin ⁇ y not b ⁇ lee 0.1 mm m ⁇ zhe ⁇ by ⁇ ⁇ luchena ⁇ a ⁇ zhe in ⁇ ezul ⁇ a ⁇ e ⁇ a ⁇ i in ⁇ vazi-iz ⁇ e ⁇ miches ⁇ i ⁇ usl ⁇ viya ⁇ on ⁇ e ⁇ v ⁇ m e ⁇ a ⁇ e and ⁇ sleduyuschey ⁇ a ⁇ e in iz ⁇ e ⁇ miches ⁇ i ⁇ usl ⁇ viya ⁇ without ⁇ b ⁇ l ⁇ ch ⁇ i ⁇ i ⁇ em ⁇ e ⁇ a ⁇ u ⁇ e 400-700 ° C for v ⁇ m e ⁇ a ⁇ e.
  • the sheet is disposed of under thermal conditions with intermittent firing, which is faster than lower than its temperature.
  • alloys are amenable to the formation of a structural structure in the event of damage, it is advisable to change the direction of the voltage between 90% of the load. This is especially important in case of quasi-thermal conditions, which are usually carried out at a higher speed than in the event of an accident.
  • the invention is proposed. You are welcome to make a profit from ⁇ + ⁇ alloys by using a single small-duty mix. The process of processing the products from these materials is their ability to keep them in good condition. Maintenance of the disease is ensured by the intensive development of dynamic recovery, which is an effective and responsive gamma process.
  • ⁇ a ⁇ ⁇ mechal ⁇ s above ⁇ edlagae ⁇ sya is ⁇ lz ⁇ va ⁇ g ⁇ yachuyu iz ⁇ e ⁇ miches ⁇ uyu and ⁇ vazi-iz ⁇ e ⁇ miches ⁇ uyu de ⁇ matsiyu ⁇ i ⁇ n ⁇ si ⁇ eln ⁇ niz ⁇ i ⁇ ⁇ em ⁇ e ⁇ a ⁇ u ⁇ a ⁇ - in ⁇ + ⁇ 2 ⁇ az ⁇ v ⁇ y ⁇ blas ⁇ i in ⁇ y ⁇ be ⁇ azy u ⁇ yad ⁇ cheny, ⁇ s ⁇ l ⁇ u e ⁇ ⁇ bes ⁇ echivae ⁇ ⁇ mi ⁇ vanie in ⁇ + ⁇ 2 fusion of a single small-sized microstructure.
  • ⁇ + ⁇ 2 phasic area is the possibility of processing in it a batch of ⁇ + ⁇ 2 alloys without the need for protection and protection.
  • ⁇ l ⁇ in ⁇ + ⁇ 2 ⁇ az ⁇ v ⁇ y ⁇ blas ⁇ i m ⁇ zhn ⁇ e ⁇ e ⁇ ivn ⁇ is ⁇ lz ⁇ va ⁇ ⁇ n ⁇ si ⁇ eln ⁇ cheapest ⁇ s ⁇ avneniyu with m ⁇ libden ⁇ vym ins ⁇ umen ⁇ made, na ⁇ ime ⁇ from ni ⁇ elev ⁇ g ⁇ zha ⁇ chn ⁇ g ⁇ s ⁇ lava and s ⁇ e ⁇ l ⁇ smaz ⁇ i, ⁇ e ⁇ ya ⁇ s ⁇ vuyuschie ⁇ isleniyu ⁇ + ⁇ 2 s ⁇ lav ⁇ v and reducing ⁇ n ⁇ a ⁇ n ⁇ e ⁇ enie between zag ⁇ v ⁇ y and ins ⁇ umen ⁇ m.
  • a ⁇ + ⁇ alloy When a ⁇ + ⁇ alloy is present, it is relatively small, for example, with a small grain size, and a stable microstructure (which is 18 for product materials) Processing may occur while temperature
  • the initial study Before the preparation of the ⁇ + ⁇ alloy, the initial study teaches attention is carried out at each stage; Samples for the determination of optimal parameters of the process: temperature ⁇ , and speed ⁇ ; deformations. For this, before each step from the smelting of the alloy, the samples are cut, which are deformed by compression. After testing, they are cooled in the air. In the main of these tests, the temperature regimes are divided, and the alloys are cut to a degree ⁇ , they are meshed. To get out of these modes of operation, the optimal need is to use the abovementioned principle. For this purpose, the specific industrialized volume and the size of the industrialized grains are divided into samples. For this, they are divided into sections along with compression and the cross section are studied in the optical microscope. For evaluating the indicated parameters, the current method is used.
  • the optimal mode should ensure the simultaneous effective grinding of micro-processes and the increased environment is small (not great maximum).
  • the next and the next step must be sufficient to achieve a complete and complete peace of mind.
  • Personal steps and step ⁇ with a quick reduction of the temperature, depends on the original size of the ground / core.
  • the preheating of the ⁇ preparation must be taken into account only if it is necessary to take into account its cooling from the furnace to the impairing one.
  • modifiers such as arsenic
  • the method of receiving the products from the firstly chopped microprocessor is the fourth one in the process of processing.
  • FIG. 1 a schematic diagram illustrating the possible means is shown.
  • Figure 5 shows a sample of the sample from the ⁇ -48 ⁇ 1-2 ⁇ -2Sg alloy (at.%>): A - before the deformation, b - after the deformation.
  • Fig. 6 shows typical stamps obtained by the “precipitate” massive alloys from the ⁇ -48 ⁇ 1-2 ⁇ L-2Sg alloy (at.%) ⁇
  • ⁇ 10 ° C and with "1
  • EXAMPLE 2 The preparation of the Georgian-48 ⁇ 1-2 ⁇ --2Sg alloy (at.%>) With sizes of 200x200x10 mm with a pre-prepared small volume of 5 cm) 24 changes in the direction of rotation in the thermal conditions on a rolling mill with heated rollers. In the first place, they were carried out at a temperature of 900 ° C.
  • the acidified layer with a thickness of 0.05 mm was removed from the general side of the sheet. At the same time, they were carrying out a ramp at 800 ° ⁇ with a speed of 5x10 "3 s " 1 .
  • the front sheet was heated in a fresh furnace and also before it was heated for 3-5 minutes. The value of living for ⁇ regulate did not exceed 25%.
  • a sheet with a thickness of 0.5 mm was obtained (Fig. 2a).
  • the machine was operated without heating in ovens at a temperature of 700 ° C with a speed of "3 s " 1 .
  • the small thickness ensured the instantaneous (for a few seconds) local heating of the sheet when approaching it to hot rolls, so that it can be cooled quickly.
  • a short (a few seconds) stay of the sheet in the hot zone made it possible to avoid the deoxidation of the film.
  • a foil with a thickness of 0.1 mm was obtained (Fig.2b).
  • the operating conditions are shown in Table 1.
  • the filter of the foil was one-sided, the size of the grain was 0.2-0.3 microns (Fig. 3).
  • Example 3 The preparation of the till-48 ⁇ 1-2 ⁇ -2 ⁇ alloy (at.%>) With sizes of 200x200x10 mm 3 with a preliminary small volume was measured (5) At the beginning of this phase, they were subject to quasi-isothermal conditions. For e ⁇ g ⁇ zag ⁇ v ⁇ u ⁇ meschali in s ⁇ alnuyu massive ⁇ b ⁇ l ⁇ ch- ⁇ u, nag ⁇ evali ⁇ e ⁇ ed ⁇ azhdym ⁇ d ⁇ m in ⁇ dn ⁇ y ⁇ echi d ⁇ 950 ° C and ⁇ sle vyde ⁇ zh ⁇ i ⁇ i e ⁇ y ⁇ em ⁇ e ⁇ a ⁇ u ⁇ e in ⁇ echenie 20 ⁇ 5 minutes the ⁇ a ⁇ yvali on s ⁇ ane on val ⁇ a ⁇ nag ⁇ e ⁇ y ⁇ d ⁇ 850 ° C s ⁇ s ⁇ s ⁇ yu 10 "with "1 .
  • the duration of the product at 950 ° C decreased by the decrease in the thickness of the batch. After each “pack”, they were opened 180 °. All was done on 15th of June. After freezing and cutting, a sheet with sizes of 1940x200x1 mm was received. Next leaf cut into “cutouts" with sizes 100x200x 1 mm
  • the burners were incinerated in a vacuum at 800 ° C for 2 hours.
  • the “short circuit” was in the case of thermal conditions at 700 ° C with a speed of 10 "3 s " 1 and the intermediate firing in vacuum.
  • the operating conditions and the processing equipment are shown in Table 2.
  • the thickness of the foil was 0.1 mm.
  • the public security team was one-sided. The size of the grain was about 1 micron.
  • Example 4 Preparation of the alloy ⁇ -48 ⁇ 1-2 ⁇ -2Sg (at.%>) With sizes 200x200x 10 mm 'with a prefabricated, small-sized micro-structured (with a size of 5-10 ⁇ m) were turned into two stages. ⁇ a ⁇ e ⁇ v ⁇ m e ⁇ a ⁇ e ⁇ a ⁇ u ⁇ v ⁇ dili in ⁇ dn ⁇ m na ⁇ av-lenii in iz ⁇ e ⁇ miches ⁇ i ⁇ usl ⁇ viya ⁇ on val ⁇ a ⁇ nag ⁇ e ⁇ y ⁇ d ⁇ YU50 ° C s ⁇ s ⁇ s ⁇ yu 10 "" "1.
  • P ⁇ sle 6 ⁇ -d ⁇ v and ⁇ e ⁇ atsii ⁇ b ⁇ ez ⁇ i was ⁇ luchena ⁇ l ⁇ sa with ⁇ azme ⁇ ami 480x200x4 mm '5.
  • ⁇ ezhimy ⁇ bzha ⁇ y ⁇ a ⁇ ie same ⁇ a ⁇ and ⁇ i ⁇ e ⁇ vy ⁇ 6 The products presented in table 1. Before the first step with the general operating system ⁇ n ⁇ l ⁇ s was removed ⁇ islenny sl ⁇ y ⁇ lschin ⁇ y 0.1 mm.
  • the time spent in the furnace at 800 ° ⁇ decreased from 15 minutes before the first turn to 3 minutes before the last.
  • the value of living for ⁇ regulate did not exceed 25%>.
  • the operating conditions are shown in Table 3. After 16 days of removal and removal of the acidified layer with a thickness of 0.025 mm, a sheet with a thickness of 0.5 mm was obtained. Then the sheets were burned at 750 ° ⁇ for 3 hours. After the operation, the size of the sheet was 1920x200x0.5 mm. The sheet metal was one-sided, the size of the grain was equal to 0.3-0.4 microns.
  • a) use a heated tool up to 1000 ° C and a speed of at least 10 "', -5 ⁇ 10 "' 5 s " ; b) do not overheat 150 ° C; Intermediate firing at temperatures of up to 50 ° C to relieve excess internal stresses.
  • EXAMPLE 8 In the case of decomposition of bulk products from the ⁇ -48 ⁇ 1-2 ⁇ -2Cg alloy, the results obtained from testing of the experimental samples were taken into account (see 6). Pour billet is preliminarily baked to hot and tempered at 1260 ° ⁇ for 2 hours and homogenized burning at 1380 ° ⁇ for 30 minutes with 0160 ⁇ sizes
  • Zag ⁇ v ⁇ u ⁇ edva ⁇ i ⁇ eln ⁇ ⁇ dve ⁇ gnu ⁇ uyu g ⁇ yachemu iz ⁇ s ⁇ a ⁇ iches ⁇ mu ⁇ ess ⁇ vaniyu ⁇ i 1260 ° C ⁇ echenie 2 chas ⁇ v and g ⁇ m ⁇ genizi ⁇ uyuschemu ⁇ zhigu ⁇ i 1380 ° ⁇ for 30 minutes with sizes of 048x60 mm ( ⁇ 6) were washed with glass-lubricated ⁇ -24 and heated in the furnace ⁇ -520/14 to a temperature of Yu50 ⁇ 5 ° ⁇ .
  • EXAMPLE 13 In the case of the preparation of lithium preparations from the ⁇ -48 ⁇ 1-2 ⁇ 2-2Cg alloy, the results obtained from the testing of model samples were taken into account (see Example 6).
  • the semi-finished product is pre-heated at 1380 ° ⁇ for 2 hours with dimensions 40x24x 12 mm and was stained with grease EN-24 and heated in the furnace “5 ° C”. After a 40-minute quick start-up (no more than 5 seconds later), it was transferred to the environment and overwhelmed by a 900-degree corner of the 35 at a speed of 5-10 mm / min at a rate of at least 60% equivalent tension for a single unit. After a quick start, the quick food was taken out and transferred to the outside from the outside (no more than 5 seconds).
  • P ⁇ sle ⁇ a ⁇ i and ⁇ sv ⁇ b ⁇ zhdeniya ⁇ b ⁇ l ⁇ ch ⁇ i zag ⁇ v ⁇ a had ⁇ azme ⁇ y 12,3x12,3x300 mm.
  • ⁇ ⁇ ezul ⁇ a ⁇ e ⁇ a ⁇ i was ⁇ luchena ⁇ ln ⁇ s ⁇ yu ⁇ las ⁇ incha ⁇ aya STRUCTURE WITH SIZE LARGE NEAR 50 m ⁇ m, ch ⁇ susches ⁇ venn ⁇ less than ⁇ sle g ⁇ m ⁇ genizatsii (1000 m ⁇ m).
  • the pressure of the deflection after the transition was changed by 90 °. After completing the preparation, they were burned at a temperature of 950 ° for 2 hours. After this, the baking furnace was cooled down to 850 ° C and the second stage of processing was processed.

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  • Engineering & Computer Science (AREA)
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Abstract

Cette invention se rapporte à l'usinage sous pression de métaux et d'alliages, notamment à l'usinage d'alliages à base d'aluminures de titane TiAl (phase η) et Ti3Al (phase α2) obtenus par coulage. Cette invention concerne également un procédé de frittage, et peut être utilisée afin de produire des tôles et des feuilles ayant une structure réglementée. Ce procédé consiste à utiliser en qualité d'ébauche de départ une ébauche ayant une structure à granulation fine préalablement préparée. Le laminage en tôle ou en feuille d'une épaisseur prédéterminée et présentant des grains d'une certaine taille se fait dans la plage de vitesses de déformation 10?-3 à 10-1 sec.-1¿ et dans une plage de température T* à Te ° C où T* varie de préférence de 400 à 700° C tandis que Te représente la température de conversion eutectique. Ce laminage s'effectue en une ou plusieurs étapes au cours de N passages dans des conditions isothermes ou quasi-isothermes. La température T¿i+1? de chauffage de l'ébauche à chaque étape suivante est choisie selon la relation Ti+1 = Ti où Ti représente la température de chauffage de l'ébauche à l'étape précédente, étant entendu que pour la première étape Ti = To où To représente la température de déformation lors de la dernière étape lors de la production de l'ébauche par laminage. On peut encore respecter la relation Ti+1 = Ti + ΔTi+1 ou Ti+1 = Ti - Δti+1 où Δ Ti+1 est choisi d'après les conditions de croissance tolérée des grains tandis Δti+1 est choisi d'après les conditions de déformabilité ou de déformabilité et de réduction d'oxydabilité des alliages.
PCT/RU2000/000236 1999-06-17 2000-06-19 PROCEDE DE LAMINAGE D'EBAUCHE EN ALLIAGES η + α2 HYPER-EUTECTOIDES ET PROCEDE DE PRODUCTION D'EBAUCHES PERMETTANT DE METTRE EN OEUVRE CE PROCEDE WO2001000887A2 (fr)

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Application Number Priority Date Filing Date Title
AU55810/00A AU5581000A (en) 1999-06-17 2000-06-19 Method for rolling preforms of gamma + alpha2 hyper-eutectoid alloys and preform production method for realising the same

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RU99113286A RU2164180C2 (ru) 1999-06-17 1999-06-17 СПОСОБ ПРОКАТКИ ЗАГОТОВОК ИЗ ЗАЭВТЕКТОИДНЫХ γ+α2СПЛАВОВ И СПОСОБ ПОЛУЧЕНИЯ ЗАГОТОВОК ДЛЯ ОСУЩЕСТВЛЕНИЯ ПЕРВОГО СПОСОБА
RU99113286 1999-06-17

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WO2001000887A3 WO2001000887A3 (fr) 2001-08-02

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US9011205B2 (en) 2012-02-15 2015-04-21 General Electric Company Titanium aluminide article with improved surface finish
RU2614919C1 (ru) * 2015-10-29 2017-03-30 Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" Способ изготовления деталей из титановых сплавов

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RU2464116C1 (ru) * 2011-03-15 2012-10-20 Государственное образовательное учреждение высшего профессионального образования "Томский государственный университет" (ГОУ ВПО ТГУ) Способ получения высокопрочных титановых прутков круглого сечения с ультрамелкозернистой структурой
RU2598747C1 (ru) * 2015-04-14 2016-09-27 Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" Способ изготовления металлических панелей из титано-алюминиевых сплавов

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US5226985A (en) * 1992-01-22 1993-07-13 The United States Of America As Represented By The Secretary Of The Air Force Method to produce gamma titanium aluminide articles having improved properties
EP0685568A1 (fr) * 1994-05-31 1995-12-06 Rockwell International Corporation Procédé de traitement thermomécanique d'aluminiures de titane presque en phase gamma obtenues par coulée pour le réglage de la grosseur des grains et l'optimisation des propriétés mécaniques
US5558729A (en) * 1995-01-27 1996-09-24 The United States Of America As Represented By The Secretary Of The Air Force Method to produce gamma titanium aluminide articles having improved properties

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9011205B2 (en) 2012-02-15 2015-04-21 General Electric Company Titanium aluminide article with improved surface finish
RU2614919C1 (ru) * 2015-10-29 2017-03-30 Акционерное общество "Военно-промышленная корпорация "Научно-производственное объединение машиностроения" Способ изготовления деталей из титановых сплавов

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WO2001000887A3 (fr) 2001-08-02
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