CN105970133A - Method for preparing metastable metal material through stable-state magnetic field and application thereof - Google Patents
Method for preparing metastable metal material through stable-state magnetic field and application thereof Download PDFInfo
- Publication number
- CN105970133A CN105970133A CN201610266188.3A CN201610266188A CN105970133A CN 105970133 A CN105970133 A CN 105970133A CN 201610266188 A CN201610266188 A CN 201610266188A CN 105970133 A CN105970133 A CN 105970133A
- Authority
- CN
- China
- Prior art keywords
- magnetic field
- metal material
- quenching
- metastable
- solid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C22F3/00—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons
- C22F3/02—Changing the physical structure of non-ferrous metals or alloys by special physical methods, e.g. treatment with neutrons by solidifying a melt controlled by supersonic waves or electric or magnetic fields
-
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- 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
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/057—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with copper as the next major constituent
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Hard Magnetic Materials (AREA)
Abstract
The invention discloses a method for preparing a metastable metal material through a stable-state magnetic field and application thereof. In the stable-state magnetic field with the intensity higher than 1T, a rapid solidification method is adopted, metal melt is cooled to a certain set temperature corresponding to a solid-liquid two-phase region generated when the metal is solidified, and temperature preservation is conducted; after the temperature is preserved for a certain period of time, a metal material system which is still in the initial solidification state is put into a quenching medium quickly for quenching; and in the quenching technological process, the metal material system is in the stable-state magnetic field all the time, so that the metastable metal material is obtained. According to the method for preparing the metastable metal material through the stable-state magnetic field and application thereof, interaction between the magnetic field and the metal material is utilized, and the stable-state magnetic field is applied to the rapid quenching process to prepare the metastable metal material. Compared with a traditional quenching technology, by means of the method, the higher cooling speed can be achieved under the same cooling condition; the requirement for quenching equipment is low; and the method is wide in application prospect. In addition, technical equipment is simple in process and can be applied widely.
Description
Technical field
The present invention relates to the preparation method and application of a kind of metal material, particularly relate to the system of a kind of metastable metal material
Preparation Method and application, be applied to metal material processing field.
Background technology
Metastable metal material is closed widely because it has some excellent properties not available for stable metal material
Note and research.On the one hand this is because, and utilizes the phase transition process stablizing phase → metastable phase → stablize phase, is not changing alloying component
Under conditions of the microstructure form of stable phase can be made to be greatly improved, thus put forward heavy alloyed performance, this grinds than design
The alloy making a kind of new component is more quick and easy；On the other hand, the many metastable phases in metal material all have stable phase institute
, as long as the most there is not the hot activation bar making metastable phase stabilisation change in the heterogeneous microstructure not having and performance
Part, it is possible to the material that life-time service is strengthened by metastable phase.
Metastable metal material has become as ingredient important in modern industry, such as: the aluminium alloy of Aero-Space or
Product made from steel.In order to study and apply Nonequilibrium Materials, it is developed some for preparing metastable metal material method, such as:
Flash set technology, vapour deposition, high-energy radiation method, mechanical alloying, amorphous annealing etc..These traditional methods, although
Metastable metal material can be prepared, but its volume is all limited in below Centimeter Level or can be only formed little several Asias
Steady phase, and its preparation method requires harshness to equipment and processing conditions, it is difficult to there is breakthrough further, such as: rapid quenching method
Preparation metastable phase needs the cooldown rate being exceedingly fast, and in order to improve cooling rate speed, often can only sacrifice the volume of product；Fast rapid hardening
Solid paillon foil, band, powder need to be through extremely complex consolidation, sintering and plastic forming technical process, in following process, anxious
The metastable phase of cold conditions and the property adapted therewith are often difficult to keep completely.This greatly limits metastable metal material to exist
Extensive application in actual industrial production.Such contradictory phenomena forces people to seek new metastable metal material preparation method.
Therefore, develop metastable metal material new preparation technology and become the technical problem that Nonequilibrium Materials field is urgently to be resolved hurrily.
Summary of the invention
In order to solve prior art problem, it is an object of the invention to the deficiency overcoming prior art to exist, it is provided that a kind of
Utilize steady magnetic field to prepare method and the application of metastable metal material, utilize the interaction in magnetic field and metal material, quickly
Quenching process applies steady magnetic field, prepares metastable metal material.The inventive method is compared with tradition quenching technology, it is possible in phase
Obtaining faster cooling rate under same cooling condition, require low to quenching apparatus, application prospect is extensive.
Creating purpose for reaching foregoing invention, present inventive concept is as follows:
Prepare Nonequilibrium Materials typically require employing two-step method prepare, including energetic process and quick freezing process.Energetic mistake
The modes such as journey, i.e. by gasification, is dissolved, radiation, plastic deformation, heating make material be changed into solid-state, liquid and gaseous state, material system
The free energy of system increases.Quick freezing process is that the material being in upper state completing energetic process is carried out quick freezing,
Nonequilibrium Materials needed for obtaining.Typically characterize with cooldown rate and freeze speed, therefore, improve cooldown rate and have become as preparation
The important means of Nonequilibrium Materials.Use and apply magnetic field and can change cooling rate speed, can improve Nonequilibrium Materials preparation method, thus more
It is readily available Nonequilibrium Materials.
Conceiving according to foregoing invention, the present invention uses following technical proposals:
A kind of method utilizing steady magnetic field to prepare metastable metal material, under the steady magnetic field more than 1T, uses rapid solidification
Method, a certain design temperature that solid-liquid two-phase section when metal bath is cooled to metal freezing is corresponding is incubated, in insulation
After certain time, then quench still quickly putting in hardening media in the metal material system carrying out initial solidification, quenching
During ignition technique, metal material system is constantly among steady magnetic field, thus obtains metastable metal material.Metal of the present invention
Melt first a certain temperature a period of time in solid-liquid two-phase region, it is ensured that the biphase thermodynamical equilibrium condition that reaches of solid-liquid, favorably
In improving quality prepared by meta material, make preparation process more controllable.
As currently preferred technical scheme, solid-liquid two-phase section when metal bath is cooled to metal freezing is corresponding
Design temperature be incubated, temperature retention timetThe time that reaches thermodynamical equilibrium condition required for biphase more than solid-liquid, it may be assumed thatt
> x 2/D, wherein,xIt is solid phase characteristic length,DIt it is solid phase diffusion welding.After being incubated, then carry out quenching technical.
As the further preferred technical scheme of such scheme, the magnetic field that steady magnetic field uses magnetic field intensity to be 6 T.
As the further preferred technical scheme of such scheme, metal bath is cooled to solid-liquid during metal freezing
After the design temperature that two-phase section is corresponding carries out being incubated 3 h, then carry out quenching technical.
A kind of present invention utilizes steady magnetic field to prepare the application of method of metastable metal material, real to Al-45wt%Cu alloy
Execute and processed without the rapid quenching under magnetic field, prepared metastable phase solidified structure.
The present invention compared with prior art, has and the most obviously highlights substantive distinguishing features and remarkable advantage:
1. comparing tradition quenching method and prepare Nonequilibrium Materials, the present invention, under the conditions of same rapid quenching, quenches at alloy melt
During be applied with steady magnetic field, utilize magnetic field improve metal bath cooldown rate in quenching process, combine fast rapid hardening
Solid method and the advantage of magnetic field processing method, it is easier to prepare metastable metal material；
2. the present invention is not on the basis of changing quenching apparatus, only increases steady magnetic field, and apparatus and process is simple, extensively should be conducive to
With.
Accompanying drawing explanation
Fig. 1 is preferred embodiment of the present invention magnetic-field quenching experimental provision structural representation.
Fig. 2 is the presence or absence magnetic-field quenching speed comparison diagram of the preferred inventive embodiments of the present invention and comparative example.
Fig. 3 is the presence or absence magnetic-field quenching tissue micrograph comparison diagram of the preferred inventive embodiments of the present invention and comparative example.
Fig. 4 is the XRD figure spectrum of the quenching sample of the preferred inventive embodiments of the present invention.
Detailed description of the invention
Details are as follows for the preferred embodiments of the present invention:
In the present embodiment, seeing Fig. 1～4, the alloy of employing is Al-45wt%Cu alloy.Described alloy is cut into Φ 6mm*
The cylindrical specimens of 8mm, puts into obtained Al-45wt%Cu alloy sample in magnetic-field quenching experimental provision shown in Fig. 1 afterwards
Rapid quenching process is carried out in the environment of 6T steady magnetic field.Magnetic-field quenching device in the present embodiment is as it is shown in figure 1, include sample
Product support bar 1, heating furnace 2, kicker magnet 3 and quenching bath 4.The present embodiment also uses quick setting method, concrete steps: first
First, with the heating rate of 10 DEG C/min, sample is heated to 750 DEG C by room temperature, is incubated 40min；Then with the speed of 5 DEG C/min
The a certain design temperature 570 DEG C that solid-liquid two-phase section when sample is cooled to Al-45wt%Cu alloy graining is corresponding, is incubated 3h,
The most still quickly put in quenching bath by water quenching, during quenching technical, sample at the sample carrying out initial solidification
It is constantly among steady magnetic field, thus obtains metastable alloy material.The present embodiment is under the steady magnetic field environment of 6T, by alloy
Melt slowly cools to a certain temperature in solid-liquid two-phase region and is incubated a period of time, is then put into by alloy melt in hardening media fast
Speed quenching.Owing to magnetic field changes cooldown rate, bigger cooling rate speed will be obtained under magnetic field, thus be easier to obtain metastable metal
Material.The present embodiment, by applying steady magnetic field in rapid quenching processes, improves metal bath cooling in quenching process
Speed, it is easier to obtain metastable metal material.The present embodiment, as a example by Al-45wt%Cu alloy quenching is tested, is executed at quenching process
Adding magnetic field, rate of cooling is faster.And solidified structure occurs two kinds of metastable phases, a-Al phase, Al4Cu9Phase.Compare traditional quenching
Technology, under identical quenching condition, the present embodiment applies steady magnetic field and improves cooling rate speed, it is easier to obtain metastable metal material
Material.Additionally, this technical equipment technique is simple, be conducive to extensively application.
Comparative example:
This comparative example is essentially identical with embodiment, is particular in that:
In the present embodiment, Al-45wt%Cu alloy is implemented without the rapid quenching process under magnetic field.This process technique is except steady
State magnetic field intensity is outside 0T, other technological parameters such as heating-up temperature, temperature retention time, quenching mode etc. all with above-described embodiment phase
With.
Experimental test and analysis:
Being shown by comparison of test results, above-described embodiment cooldown rate under 6T magnetic field is significantly greater than without the cooling under magnetic field
Speed, as in figure 2 it is shown, the cooldown rate of above-described embodiment at least doubles above than the cooldown rate of comparative example.At Fig. 3
In, scanning electron microscope microstructure observation shows: during rapid quenching, and above-described embodiment applies steady magnetic field and makes sample
In occur in that substantial amounts of metastable phase, and without the rapid quenching sample under magnetic field does not occur metastable phase, as it is shown on figure 3, A is just
Raw phase Al2Cu, B are quenching structure, and C is Al4Cu9Phase.In the diagram, XRD detection collection of illustrative plates shows: above-described embodiment is at 6T steady magnetic
Rapid quenching sample after the match exists two kinds of metastable phases, i.e. α-Al phase, Al4Cu9Phase, and quick under without magnetic field of comparative example
There is not metastable phase, as shown in Figure 4 in quenching sample.
Above in conjunction with accompanying drawing, the embodiment of the present invention is illustrated, but the invention is not restricted to above-described embodiment, it is also possible to
The purpose of the innovation and creation according to the present invention makes multiple change, under all spirit according to technical solution of the present invention and principle
The change made, modify, substitute, combine or simplify, all should be the substitute mode of equivalence, as long as meeting the goal of the invention of the present invention,
Steady magnetic field is utilized to prepare the method for metastable metal material and the know-why of application and inventive concept without departing from the present invention,
Broadly fall into protection scope of the present invention.
Claims (5)
1. one kind utilizes the method that steady magnetic field prepares metastable metal material, it is characterised in that: under the steady magnetic field more than 1T,
Using quick setting method, a certain design temperature that solid-liquid two-phase section when metal bath is cooled to metal freezing is corresponding enters
Row insulation, after held for some time, then will still quickly put in hardening media in the metal material system carrying out initial solidification
Quenching, during quenching technical, metal material system is constantly among steady magnetic field, thus obtains metastable metal material
Material.
Utilize the method that steady magnetic field prepares metastable metal material the most according to claim 1, it is characterised in that: metal is melted
The design temperature that solid-liquid two-phase section when body is cooled to metal freezing is corresponding is incubated, temperature retention timetBiphase more than solid-liquid
Reach the time required for thermodynamical equilibrium condition, it may be assumed thatt > x 2/D, wherein,xIt is solid phase characteristic length,DIt is that solid phase expands
Dissipate coefficient, after being incubated, then carry out quenching technical.
The method utilizing steady magnetic field to prepare metastable metal material the most according to claim 1 or claim 2, it is characterised in that: stable state
The magnetic field that magnetic field uses magnetic field intensity to be 6 T.
The method utilizing steady magnetic field to prepare metastable metal material the most according to claim 1 or claim 2, it is characterised in that: by gold
After genus melt cooling carries out being incubated 3 h to the design temperature that solid-liquid two-phase section during metal freezing is corresponding, then carry out quencher
Skill.
5. described in a claim 1, utilize the application of the method that steady magnetic field prepares metastable metal material, it is characterised in that: right
Al-45wt%Cu alloy implements and processes without the rapid quenching under magnetic field, prepares metastable phase solidified structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266188.3A CN105970133B (en) | 2016-04-27 | 2016-04-27 | The method and application of metastable metal material are prepared using steady magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610266188.3A CN105970133B (en) | 2016-04-27 | 2016-04-27 | The method and application of metastable metal material are prepared using steady magnetic field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105970133A true CN105970133A (en) | 2016-09-28 |
| CN105970133B CN105970133B (en) | 2019-07-23 |
Family
ID=56993587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610266188.3A Expired - Fee Related CN105970133B (en) | 2016-04-27 | 2016-04-27 | The method and application of metastable metal material are prepared using steady magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105970133B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535561A (en) * | 2022-02-25 | 2022-05-27 | 南京航空航天大学 | Real-time automatic regulation and control method and device for alloy mushy zone in wide solidification zone through directional solidification of traveling wave magnetic field |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993002222A1 (en) * | 1991-07-19 | 1993-02-04 | Composite Materials Technology, Inc. | Process of producing superconducting alloys |
| JP2003306736A (en) * | 2002-04-19 | 2003-10-31 | Chokoon Zairyo Kenkyusho:Kk | Niobium silicide based composite material and production method thereof |
| CN102703986A (en) * | 2012-06-21 | 2012-10-03 | 上海大学 | Method for transforming columnar crystal-orienting isometric crystal of directional solidified alloy with strong static magnetic field induction |
| CN105143480A (en) * | 2013-04-23 | 2015-12-09 | 美题隆公司 | Copper-nickel-tin alloy with high toughness |
-
2016
- 2016-04-27 CN CN201610266188.3A patent/CN105970133B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1993002222A1 (en) * | 1991-07-19 | 1993-02-04 | Composite Materials Technology, Inc. | Process of producing superconducting alloys |
| JP2003306736A (en) * | 2002-04-19 | 2003-10-31 | Chokoon Zairyo Kenkyusho:Kk | Niobium silicide based composite material and production method thereof |
| CN102703986A (en) * | 2012-06-21 | 2012-10-03 | 上海大学 | Method for transforming columnar crystal-orienting isometric crystal of directional solidified alloy with strong static magnetic field induction |
| CN105143480A (en) * | 2013-04-23 | 2015-12-09 | 美题隆公司 | Copper-nickel-tin alloy with high toughness |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114535561A (en) * | 2022-02-25 | 2022-05-27 | 南京航空航天大学 | Real-time automatic regulation and control method and device for alloy mushy zone in wide solidification zone through directional solidification of traveling wave magnetic field |
| CN114535561B (en) * | 2022-02-25 | 2022-11-18 | 南京航空航天大学 | Real-time automatic regulation and control method and device for directional solidification of wide solidification interval alloy mushy zone by traveling wave magnetic field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105970133B (en) | 2019-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Shi et al. | Characterisation of a novel Sc and Zr modified Al–Mg alloy fabricated by selective laser melting | |
| Xu et al. | Recrystallization and twinning in rapidly solidified nickel based alloys without man-made plastic deformation | |
| CN1329549C (en) | Heating technology for refining TiAl alloy ingot microscopic texture | |
| Dong et al. | Microstructure and magnetocaloric properties of melt-extracted La–Fe–Si microwires | |
| Musabirov et al. | Fine-grained structure and properties of a Ni 2 MnIn alloy after a settling plastic deformation | |
| Shahmir et al. | Shape memory effect of NiTi alloy processed by equal-channel angular pressing followed by post deformation annealing | |
| CN105970133A (en) | Method for preparing metastable metal material through stable-state magnetic field and application thereof | |
| Ye et al. | Retracted: Effect of High‐Energy Electropulsing on the Phase Transition and Mechanical Properties of Two‐Phase Titanium Alloy Strips | |
| Huang et al. | Dynamic recrystallization behavior and texture evolution of NiAl intermetallic during hot deformation | |
| Braz Fernandes et al. | XRD study of the transformation characteristics of severely plastic deformed Ni‐Ti SMAs | |
| Artyukhova et al. | Shape-memory effect in porous alloys obtained by the reaction sintering of the Ti-Ni system | |
| Ramosoeu et al. | Additive manufacturing: Characterization of TI-6AI-4V alloy intended for biomedical application | |
| CN108160956A (en) | The control method and device of particle coarsening behavior in a kind of liquid/solid two-phase system | |
| CN103820664A (en) | Short-flow preparation method of precipitation-strengthened copper-chromium alloy | |
| Soliman et al. | Multiphase ausformed austempered ductile iron | |
| Kapinos et al. | Effect of heat treatment on the mechanical properties of wrought Al-Zn-Mg-Cu alloy cast by rapid solidification | |
| Churakova et al. | Mechanical behavior and fractographic analysis of a TiNi alloy with various thermomechanical treatment | |
| CN105506523A (en) | Method for improving damping property of forged Mn-Cu-based damping alloy | |
| Zhang et al. | Spray forming and thermal processing for high performance superalloys | |
| RU2563382C1 (en) | Production of small-size cutting tools from high-speed steel | |
| Wu et al. | In-situ observation of dark phase precipitation during heating and soaking process of a high nickel steel | |
| CN113373388B (en) | Method for improving plasticity and toughness of boron-containing eutectic alloy by utilizing double-structure | |
| Chunxiang et al. | ZrTiAlV alloy grain refining under high-pressure torsion and electric field-assisted heat treatment | |
| Song et al. | Effect of rare earth (RE) La on solid solution of second phase particle and austenite grain growth in steel containing high niobium | |
| Popa et al. | Storage modulus and internal friction variations in a Fe-28 Mn-6Si-5Cr (mass.%) shape memory alloy analyzed by three-point-bending DMA |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190723 |