CN108660396A - A kind of TiAl composite materials of big distortion - Google Patents
A kind of TiAl composite materials of big distortion Download PDFInfo
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- CN108660396A CN108660396A CN201810368840.1A CN201810368840A CN108660396A CN 108660396 A CN108660396 A CN 108660396A CN 201810368840 A CN201810368840 A CN 201810368840A CN 108660396 A CN108660396 A CN 108660396A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/02—Pretreatment of the fibres or filaments
- C22C47/06—Pretreatment of the fibres or filaments by forming the fibres or filaments into a preformed structure, e.g. using a temporary binder to form a mat-like element
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/08—Making alloys containing metallic or non-metallic fibres or filaments by contacting the fibres or filaments with molten metal, e.g. by infiltrating the fibres or filaments placed in a mould
- C22C47/12—Infiltration or casting under mechanical pressure
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C47/00—Making alloys containing metallic or non-metallic fibres or filaments
- C22C47/20—Making alloys containing metallic or non-metallic fibres or filaments by subjecting to pressure and heat an assembly comprising at least one metal layer or sheet and one layer of fibres or filaments
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/02—Alloys containing metallic or non-metallic fibres or filaments characterised by the matrix material
- C22C49/12—Intermetallic matrix material
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C49/00—Alloys containing metallic or non-metallic fibres or filaments
- C22C49/14—Alloys containing metallic or non-metallic fibres or filaments characterised by the fibres or filaments
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Abstract
The invention discloses a kind of TiAl composite materials of big distortion, it is characterised in that：TiAl composite materials are prepared by the following method：Two-way carbon cloth is provided；Two-way carbon cloth is surface-treated；Surface treated two-way carbon cloth is placed into mold；Preheated mold；Magnesium alloy is melted, and descale processing is carried out to the magnesium alloy of fusing；The magnesium alloy of descale is poured into the mold by preheating, and is pressurizeed to the mold by preheating, the magnesium alloy of fibre reinforced is obtained；TiAl alloy plate is provided；The magnesium alloy of TiAl alloy plate and fibre reinforced is laminated, obtains first layer stack；Electro plasticity rolling is carried out to first layer stack.The characteristics of two different materials are combined using large deformation technique, give full play to two kinds of materials by the present invention improves the comprehensive performance of composite material.
Description
Technical field
The invention belongs to metallic composite technical fields, are related to a kind of TiAl composite materials of big distortion.
Background technology
It, can be by conventional coarse-grain by carrying out severe plastic deformation (abbreviation severe deformation) under external force to metal material
Big plastic deformation (predominantly pure shear shear deformation) occurs for material internal, makes crystal grain refinement to submicron order or nanoscale, from
And the mechanics of material or physical property is made to be improved significantly.In recent years, block body ultrafine is obtained by severe deformation method
Brilliant or nanocrystalline material, causes the broad interest of scientists.The reason of generating this interest is not only only that using strong
Deformable material has and Ultra-fine Grained made from other methods or the more superior physical property of nanocrystalline material and mechanical property
Can, it is also resided in relative to advantage specific to other Ultra-fine Graineds or nanocrystalline material.First, severe deformation can keep material
Ontology is pure, it is not easy to introduce impurity, secondly, severe deformation can be additionally used in the material sample for preparing large-size, and its technique
Flow list, cost be relatively low, low-carbon environment-friendly, can realize industrialized production, has good development prospect.
There is the technology that big distortion is carried out for TiNi alloy in currently available technology.Although this technology is become using big
Shape technology improves every mechanical property of TiNi alloy, but the technology：1 and the advantage of large deformation technology is underused,
The processing that big strain has been carried out only for TiNi alloy causes the strength of materials limited；2, in the electro plasticity operation of rolling not
Clearly embody the research and development to rolling reduction so that large deformation technique does not have operability.
Being disclosed in the information of the background technology part, it is only intended to increase understanding of the overall background of the invention, without answering
It has been the prior art well known to persons skilled in the art when being considered as recognizing or imply that the information is constituted in any form.
Invention content
The purpose of the present invention is to provide a kind of TiAl composite materials of big distortion, to overcome asking for the prior art
Topic.
To achieve the above object, the present invention provides a kind of TiAl composite materials of big distortion, it is characterised in that：
TiAl composite materials are prepared by the following method：Two-way carbon cloth is provided；Two-way carbon cloth is surface-treated；It will
Surface treated two-way carbon cloth is placed into mold；Preheated mold；Magnesium alloy is melted, and to the magnalium of fusing
Alloy carries out descale processing；The magnesium alloy of descale is poured into the mold by preheating, and to by preheating
Mold pressurize, obtain the magnesium alloy of fibre reinforced；TiAl alloy plate is provided；TiAl alloy plate and carbon fiber is laminated
The magnesium alloy for tieing up enhancing, obtains first layer stack；Electro plasticity rolling is carried out to first layer stack.
Preferably, in above-mentioned technical proposal, wherein preheated mold is specially：Preheating temperature is 400-500 DEG C, when preheating
Between be 3-5h.
Preferably, in above-mentioned technical proposal, pouring temperature is 840-850 DEG C, is pressurizeed to the mold by preheating
When, pressure 20-30MPa.、
Preferably, in above-mentioned technical proposal, carbon cloth is surface-treated specially：It is mixed using ethyl alcohol and acetone
Solution cleans carbon cloth, and cleaning temperature is 40-50 DEG C, scavenging period 30-40s.
Preferably, in above-mentioned technical proposal, wherein the magnesium alloy of stacking TiAl alloy plate and fibre reinforced obtains
It is specially to first layer stack：The magnesium alloy of TiAl alloy plate and fibre reinforced is surface-treated；Laminate surface
The magnesium alloy of treated TiAl alloy plate and fibre reinforced, obtains first layer stack.
Preferably, in above-mentioned technical proposal, surface treatment includes：It polishes and cleans TiAl alloy plate and fibre reinforced
Magnesium alloy surface, obtain the magnesium alloy of clean TiAl alloy plate and fibre reinforced；It is closed in clean TiAl
The surface deposited metal Al that the magnesium alloy of golden plate and fibre reinforced will contact.
Preferably, in above-mentioned technical proposal, electro plasticity rolling is specially：It is powered to first layer stack, wherein electric pulse frequency
Rate is 10000-20000Hz, current density 80-90A/mm2；The first layer stack of energization is rolled；After rolling
First layer stack is annealed.
Preferably, in above-mentioned technical proposal, rolling is specially：Single pass rolling reduction is 4-5%, cumulative deformation 90-
95%.
Preferably, in above-mentioned technical proposal, annealing is specially：Annealing temperature is 400-500 DEG C, annealing time 4-5h.
Compared with prior art, the present invention has the advantages that：The present invention utilizes large deformation technique by two kinds of differences
Material the characteristics of combining, giving full play to two kinds of materials, improve the comprehensive performance of composite material.Inventor has found, leads to
Conductance causes two kinds of materials that can preferably combine, and improves finished product mechanical property.
Specific implementation mode
Under unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " comprising " or its
Transformation such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other
Element or other component parts.Magnesium alloy used in the present invention may, for example, be AZ91D or AZ91E.
Embodiment 1
TiAl composite materials are prepared by the following method：Two-way carbon cloth is provided；Table is carried out to two-way carbon cloth
Surface treatment；Surface treated two-way carbon cloth is placed into mold；Preheated mold；Magnesium alloy is melted, and right
The magnesium alloy of fusing carries out descale processing；The magnesium alloy of descale is poured into the mold by preheating, and
It pressurizes to the mold by preheating, obtains the magnesium alloy of fibre reinforced；TiAl alloy plate is provided；TiAl alloy is laminated
The magnesium alloy of plate and fibre reinforced obtains first layer stack；Electro plasticity rolling is carried out to first layer stack.Wherein, in advance
Mold heat is specially：Preheating temperature is 400 DEG C, preheating time 5h.Pouring temperature is 840 DEG C, to the mold by preheating
Under pressure, pressure 30MPa.Carbon cloth is surface-treated specially：Use ethyl alcohol and acetone mixed solution pair
Carbon cloth is cleaned, and cleaning temperature is 40 DEG C, scavenging period 40s.Wherein, TiAl alloy plate is laminated and carbon fiber increases
Strong magnesium alloy, obtaining first layer stack is specially：Table is carried out to the magnesium alloy of TiAl alloy plate and fibre reinforced
Surface treatment；The magnesium alloy of laminate surface treated TiAl alloy plate and fibre reinforced, obtains first layer stack.Surface
Processing includes：The surface for polishing and cleaning the magnesium alloy of TiAl alloy plate and fibre reinforced obtains clean TiAl and closes
The magnesium alloy of golden plate and fibre reinforced；It will be connect in the magnesium alloy of clean TiAl alloy plate and fibre reinforced
Tactile surface deposited metal Al.Electro plasticity rolls：It is powered to first layer stack, wherein electrical impulse frequency is
10000Hz, current density 80A/mm2；The first layer stack of energization is rolled；First layer stack after rolling is carried out
Annealing.Rolling is specially：Single pass rolling reduction is 4%, cumulative deformation 90%.Annealing is specially：Annealing temperature is 400
DEG C, annealing time 5h.
Embodiment 2
TiAl composite materials are prepared by the following method：Two-way carbon cloth is provided；Table is carried out to two-way carbon cloth
Surface treatment；Surface treated two-way carbon cloth is placed into mold；Preheated mold；Magnesium alloy is melted, and right
The magnesium alloy of fusing carries out descale processing；The magnesium alloy of descale is poured into the mold by preheating, and
It pressurizes to the mold by preheating, obtains the magnesium alloy of fibre reinforced；TiAl alloy plate is provided；TiAl alloy is laminated
The magnesium alloy of plate and fibre reinforced obtains first layer stack；Electro plasticity rolling is carried out to first layer stack.Wherein, in advance
Mold heat is specially：Preheating temperature is 500 DEG C, preheating time 3h.Pouring temperature is 850 DEG C, to the mold by preheating
Under pressure, pressure 20MPa.Carbon cloth is surface-treated specially：Use ethyl alcohol and acetone mixed solution pair
Carbon cloth is cleaned, and cleaning temperature is 50 DEG C, scavenging period 30s.Wherein, TiAl alloy plate is laminated and carbon fiber increases
Strong magnesium alloy, obtaining first layer stack is specially：Table is carried out to the magnesium alloy of TiAl alloy plate and fibre reinforced
Surface treatment；The magnesium alloy of laminate surface treated TiAl alloy plate and fibre reinforced, obtains first layer stack.Surface
Processing includes：The surface for polishing and cleaning the magnesium alloy of TiAl alloy plate and fibre reinforced obtains clean TiAl and closes
The magnesium alloy of golden plate and fibre reinforced；It will be connect in the magnesium alloy of clean TiAl alloy plate and fibre reinforced
Tactile surface deposited metal Al.Electro plasticity rolls：It is powered to first layer stack, wherein electrical impulse frequency is
20000Hz, current density 90A/mm2；The first layer stack of energization is rolled；First layer stack after rolling is carried out
Annealing.Rolling is specially：Single pass rolling reduction is 5%, cumulative deformation 95%.Annealing is specially：Annealing temperature is 500
DEG C, annealing time 4h.
Embodiment 3
TiAl composite materials are prepared by the following method：Two-way carbon cloth is provided；Table is carried out to two-way carbon cloth
Surface treatment；Surface treated two-way carbon cloth is placed into mold；Preheated mold；Magnesium alloy is melted, and right
The magnesium alloy of fusing carries out descale processing；The magnesium alloy of descale is poured into the mold by preheating, and
It pressurizes to the mold by preheating, obtains the magnesium alloy of fibre reinforced；TiAl alloy plate is provided；TiAl alloy is laminated
The magnesium alloy of plate and fibre reinforced obtains first layer stack；Electro plasticity rolling is carried out to first layer stack.Wherein, in advance
Mold heat is specially：Preheating temperature is 400-500 DEG C, preheating time 3-5h.Pouring temperature is 840-850 DEG C, to passing through
The mold of preheating under pressure, pressure 20-30MPa.Carbon cloth is surface-treated specially：Use ethyl alcohol and third
Ketone mixed solution cleans carbon cloth, and cleaning temperature is 40-50 DEG C, scavenging period 30-40s.Wherein, TiAl is laminated
The magnesium alloy of alloy sheets and fibre reinforced, obtaining first layer stack is specially：TiAl alloy plate and carbon fiber are increased
Strong magnesium alloy is surface-treated；The magnesium alloy of laminate surface treated TiAl alloy plate and fibre reinforced,
Obtain first layer stack.Surface treatment includes：Polish and clean the table of the magnesium alloy of TiAl alloy plate and fibre reinforced
Face obtains the magnesium alloy of clean TiAl alloy plate and fibre reinforced；In clean TiAl alloy plate and carbon fiber
The surface deposited metal Al that the magnesium alloy of enhancing will contact.Electro plasticity rolls：It is powered to first layer stack,
In, electrical impulse frequency 10000-20000Hz, current density 80-90A/mm2；The first layer stack of energization is rolled；
It anneals to the first layer stack after rolling.Rolling is specially：Single pass rolling reduction is 4-5%, cumulative deformation 90-
95%.Annealing is specially：Annealing temperature is 400-500 DEG C, annealing time 4-5h.
Embodiment 4
As different from Example 3：Two-way carbon cloth is not surface-treated.
Embodiment 5
As different from Example 3：Preheated mold is specially：Preheating temperature is 550 DEG C, preheating time 4h.
Embodiment 6
As different from Example 3：Preheated mold is specially：Preheating temperature is 350 DEG C, preheating time 4h.
Embodiment 7
As different from Example 3：Pouring temperature is 830 DEG C, and to passing through the mold preheated under pressure, pressure is
40MPa。
Embodiment 8
As different from Example 3：Pouring temperature is 860 DEG C, and to passing through the mold preheated under pressure, pressure is
15MPa。
Embodiment 9
As different from Example 3：Carbon cloth is surface-treated specially：Use ethyl alcohol and acetone mixed solution
Carbon cloth is cleaned, cleaning temperature is 35 DEG C, scavenging period 60s.
Embodiment 10
As different from Example 3：The magnesium alloy of TiAl alloy plate and fibre reinforced is not surface-treated.
Embodiment 11
As different from Example 3：Surface treatment includes：In the magnalium of clean TiAl alloy plate and fibre reinforced
The surface deposited metal Fe that alloy will contact.
Embodiment 12
As different from Example 3：It is commonly rolled, is rolled without electro plasticity.
Embodiment 13
As different from Example 3：Electrical impulse frequency is 5000Hz, current density 100A/mm2。
Embodiment 14
As different from Example 3：Electrical impulse frequency is 5000Hz, current density 70A/mm2。
Embodiment 15
As different from Example 3：Rolling is specially：Single pass rolling reduction is 7%, cumulative deformation 93%.
Embodiment 16
As different from Example 3：Rolling is specially：Single pass rolling reduction is 3%, cumulative deformation 85%.
Embodiment 17
As different from Example 3：Annealing is specially：Annealing temperature is 400-500 DEG C, annealing time 4-5h.
Embodiment 18
As different from Example 3：Annealing is specially：Annealing temperature is 400-500 DEG C, annealing time 4-5h.
Embodiment 1-18 progress bending strength, tensile strength are tested, above-mentioned test method is well known in the art
Method, for the ease of comparing, the result that all experimental results are all based on embodiment 1 is normalized.
Table 1
The description of the aforementioned specific exemplary embodiment to the present invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the present invention and its actually answering
With so that those skilled in the art can realize and utilize the present invention a variety of different exemplary implementation schemes and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (9)
1. a kind of TiAl composite materials of big distortion, it is characterised in that：The TiAl composite materials are to make by the following method
Standby：
Two-way carbon cloth is provided；
The two-way carbon cloth is surface-treated；
Surface treated two-way carbon cloth is placed into mold；
Preheat the mold；
Magnesium alloy is melted, and descale processing is carried out to the magnesium alloy of fusing；
The magnesium alloy of descale is poured into the mold by preheating, and is pressurizeed to the mold by preheating, is obtained
To the magnesium alloy of fibre reinforced；
TiAl alloy plate is provided；
The magnesium alloy of the TiAl alloy plate and the fibre reinforced is laminated, obtains first layer stack；
Electro plasticity rolling is carried out to the first layer stack.
2. TiAl composite materials as described in claim 1, it is characterised in that：Wherein, preheating the mold is specially：Preheating temperature
Degree is 400-500 DEG C, preheating time 3-5h.
3. TiAl composite materials as described in claim 1, it is characterised in that：Pouring temperature is 840-850 DEG C, to by pre-
Heat mold under pressure, pressure 20-30MPa.
4. TiAl composite materials as described in claim 1, it is characterised in that：The carbon cloth be surface-treated specific
For：The carbon cloth is cleaned using ethyl alcohol and acetone mixed solution, cleaning temperature is 40-50 DEG C, and scavenging period is
30-40s。
5. TiAl composite materials as described in claim 1, it is characterised in that：Wherein, the TiAl alloy plate and institute is laminated
The magnesium alloy for stating fibre reinforced, obtaining first layer stack is specially：
The magnesium alloy of the TiAl alloy plate and the fibre reinforced is surface-treated；
The magnesium alloy of laminate surface treated TiAl alloy plate and fibre reinforced, obtains first layer stack.
6. TiAl composite materials as claimed in claim 5, it is characterised in that：The surface treatment includes：
The surface for polishing and cleaning the magnesium alloy of the TiAl alloy plate and the fibre reinforced obtains clean TiAl
The magnesium alloy of alloy sheets and fibre reinforced；
In the surface deposited metal Al that the TiAl alloy plate of the cleaning and the magnesium alloy of fibre reinforced will contact.
7. TiAl composite materials as described in claim 1, it is characterised in that：The electro plasticity rolls：
It is powered to the first layer stack, wherein electrical impulse frequency 10000-20000Hz, current density 80-90A/mm2；
The first layer stack of energization is rolled；
It anneals to the first layer stack after rolling.
8. TiAl composite materials as claimed in claim 7, it is characterised in that：The rolling is specially：Single pass rolling reduction is
4-5%, cumulative deformation 90-95%.
9. TiAl composite materials as claimed in claim 7, it is characterised in that：The annealing is specially：Annealing temperature is 400-
500 DEG C, annealing time 4-5h.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810368840.1A CN108660396B (en) | 2018-04-23 | 2018-04-23 | TiAl composite material processed in large deformation mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810368840.1A CN108660396B (en) | 2018-04-23 | 2018-04-23 | TiAl composite material processed in large deformation mode |
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| CN108660396B CN108660396B (en) | 2021-01-26 |
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| CN101244429A (en) * | 2008-03-26 | 2008-08-20 | 哈尔滨工业大学 | Method for manufacturing ultra-fine crystal magnesium/titanium layered polystyrene-plywood laminate |
| CN102172620A (en) * | 2011-02-09 | 2011-09-07 | 清华大学深圳研究生院 | Method and system for rolling difficult-to-machine metal material by combining electro-plasticity with temperature plasticity |
| CN202169276U (en) * | 2011-02-09 | 2012-03-21 | 清华大学深圳研究生院 | System for rolling metal material in electroplastic effect and thermal plasticity combined manner |
| CN102936706A (en) * | 2012-11-13 | 2013-02-20 | 北京理工大学 | Carbon fiber cloth-titanium alloy composite material and preparation method thereof |
| CN104313517A (en) * | 2014-10-31 | 2015-01-28 | 荣成复合材料有限公司 | Novel engine tappet |
| CN106521368A (en) * | 2016-12-21 | 2017-03-22 | 哈尔滨工业大学 | Fiber-reinforced Ti/Al laminar composite material and preparation method thereof |
-
2018
- 2018-04-23 CN CN201810368840.1A patent/CN108660396B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101244429A (en) * | 2008-03-26 | 2008-08-20 | 哈尔滨工业大学 | Method for manufacturing ultra-fine crystal magnesium/titanium layered polystyrene-plywood laminate |
| CN102172620A (en) * | 2011-02-09 | 2011-09-07 | 清华大学深圳研究生院 | Method and system for rolling difficult-to-machine metal material by combining electro-plasticity with temperature plasticity |
| CN202169276U (en) * | 2011-02-09 | 2012-03-21 | 清华大学深圳研究生院 | System for rolling metal material in electroplastic effect and thermal plasticity combined manner |
| CN102936706A (en) * | 2012-11-13 | 2013-02-20 | 北京理工大学 | Carbon fiber cloth-titanium alloy composite material and preparation method thereof |
| CN104313517A (en) * | 2014-10-31 | 2015-01-28 | 荣成复合材料有限公司 | Novel engine tappet |
| CN106521368A (en) * | 2016-12-21 | 2017-03-22 | 哈尔滨工业大学 | Fiber-reinforced Ti/Al laminar composite material and preparation method thereof |
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