CN106868369A - A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy - Google Patents
A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy Download PDFInfo
- Publication number
- CN106868369A CN106868369A CN201710159036.8A CN201710159036A CN106868369A CN 106868369 A CN106868369 A CN 106868369A CN 201710159036 A CN201710159036 A CN 201710159036A CN 106868369 A CN106868369 A CN 106868369A
- Authority
- CN
- China
- Prior art keywords
- magnesium
- solid solution
- supersaturated solid
- zinc alloy
- preparation
- 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.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C23/00—Alloys based on magnesium
- C22C23/04—Alloys based on magnesium with zinc or cadmium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- 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
- C22F1/06—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of magnesium or alloys based thereon
Abstract
A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, belong to technical field of metal material, after magnesium and zinc are melted, by stirring, refining treatment, it is cast into alloy cast ingot, alloy cast ingot is carried out to homogenize heat treatment and severe plastic deformation, solution treatment finally is carried out to the magnesium-zinc alloy after severe plastic deformation is processed, then take out and quickly cooled down in air or water, can obtain the microscopic structure of single-phase supersaturated solid solution, diffusion of the great number of grains defect for zinc in the base is highly beneficial, in heat treatment process, the dissolution velocity of the second phase greatly speeds up, crystal grain is further refined, improve the mechanical property and processing characteristics of material.
Description
Technical field
The invention belongs to technical field of metal material, it is related to a kind of technology of preparing of magnesium-zinc alloy, it is more particularly to a kind of
The preparation method of single-phase supersaturated solid solution magnesium-zinc alloy.
Background technology
Mg-Zn based alloy is the important magnesium alloy of a class, generally has mechanical property higher.In research and industrial production
In, it is desirable to obtain the magnesium-zinc alloy that microscopic structure is single-phase supersaturated solid solution, due to solution strengthening effect alloy have compared with
Intensity high, and due to mutually existing without second, also there is plasticity higher in deformation process, and zinc is solid-solubilized in magnesium completely
Both the electrode potential of matrix can be improved in matrix, also there is no the problem of galvanic corrosion at boundary, can carried significantly
The corrosion resistance of magnesium-zinc alloy high, in equilibrium conditions, zinc maxima solubility in magnesium is about mass percent 6% (at 325 DEG C
When), therefore in theory, in magnesium zinc system, the single-phase magnesium-zinc alloy containing Zn 6wt.% has excellent combination property, single-phase
Supersaturated solid solution magnesium-zinc alloy has important research and application value.But under actual preparation condition, metallic solution
Block eutectic can be separated out in process of setting from liquid phase, with the increase of Zn content, the increasing number of these eutectic structures is formed
The two-phase even microscopic structure of multiphase, thick block second is easily causing the problem of low intensity and forming property difference.Pass
System solution to this problem is typically with homogenization heat treatment to improve microscopic structure, and its principle is to add magnesium-zinc alloy
Heat is to 300 to 350 DEG C, and long-time heat preservation, allows block eutectic to decompose and dissolve, but this method has two deficiencies, one
It is that long-time heating causes coarse grains, material mechanical performance and processing characteristics decline, even if two is long-time Homogenization Treatments
It also is difficult to mutually be completely dissolved second in the base, hardly results in the tissue of single-phase supersaturated solid solution.
The content of the invention
The purpose of the present invention is directed to homogenization heat treatment and promotes the long-time heating occurred in eutectic decomposition method to cause
Coarse grains, mechanical property and processing characteristics decline, the second mutually deficiency such as poor solubility in the base, propose a kind of single-phase satiety
With the preparation method of solid solution magnesium-zinc alloy, single-phase supersaturated solid solution tissue can be obtained, can further crystal grain thinning, improve material
Material mechanical property and processing characteristics.
The technical scheme is that：A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, it is characterised in that
Including following operating procedure：
(1) magnesium metal and metallic zinc are fused into liquid metal；
(2) liquid metal in step (1) is stirred, refining treatment obtains refining liquid metal, machine after molten metal fusing
Tool is stirred 3~5 minutes, and then the slag such as standing removes slag after floating；
(3) by the refining liquid casting of metals in step (2) into alloy cast ingot；
(4) alloy cast ingot obtained in step (3) is carried out homogenizing heat treatment and severe plastic deformation, Homogenization Treatments temperature
It it is 300~350 DEG C, the time is 2~6 hours；
(5) solution treatment will be carried out by the magnesium-zinc alloy after severe plastic deformation treatment in step (4), heat treatment temperature is
300~325 DEG C, 2~4 hours are incubated after reaching temperature, are cooled fast in air or water after then sample is taken out
Room temperature, you can obtain the microscopic structure of single-phase supersaturated solid solution.
6.0% of Zn-ef ficiency content less than gross mass in alloy cast ingot described in step (3).
Severe plastic deformation described in step (4) is channel pressings, the reciprocating extrusions such as the use of severe plastic deformation technique etc.
Method, accumulative deflection is more than 400%.
The time being incubated described in step (5) determines according to specimen size and shape.
Beneficial effects of the present invention are：A kind of preparation side of single-phase supersaturated solid solution magnesium-zinc alloy proposed by the present invention
Method, preparation principle is clear, and because diffusion velocity of the solute atoms zinc in magnesium matrix is slow, diffusion length is long, and the present invention passes through
Severe plastic deformation treatment is carried out to magnesium-zinc alloy, when dependent variable is sufficiently large, original thick second is mutually broken into little particle,
Crystal grain can significantly be refined and have the crystal defects such as a large amount of dislocations, room simultaneously.Boundary quantity is more in unit volume, diffusion speed
Degree is faster, and the distance of solute atoms needs diffusion is shorter, and diffusion of the great number of grains defect for zinc in the base has very much
Profit, and in subsequent heat treatment process, the dissolution velocity of the second phase greatly speeds up, and has further refined crystal grain, obtains list
The magnesium-zinc alloy of phase supersaturated solid solution, improves the mechanical property and processing characteristics of material.
Brief description of the drawings
Fig. 1 is present invention Mg-5%wt.Zn alloys electron scanning micrograph under as cast condition state.
Fig. 2 be the present invention 350 DEG C, the electron scanning micrograph of heat treatment is homogenized within 4 hours under as cast condition.
Fig. 3 is the present invention in 200 DEG C, the electron scanning micrograph of 4 passage Equal-channel Angular Pressings treatment.
Fig. 4 is that the present invention carries out 350 DEG C, 4 hours homogenization heat again after 200 DEG C, the treatment of 4 passage Equal-channel Angular Pressings
The electron scanning micrograph for the treatment of.
Fig. 5 is present invention Mg-6%wt.Zn alloys electron scanning micrograph under as cast condition state.
Fig. 6 be the present invention 350 DEG C, the electron scanning micrograph of heat treatment is homogenized within 4 hours under as cast condition.
Fig. 7 is the present invention in 200 DEG C, the electron scanning micrograph of 6 passage Equal-channel Angular Pressings treatment.
Fig. 8 is that the present invention carries out 350 DEG C, 4 hours homogenization heat again after 200 DEG C, the treatment of 6 passage Equal-channel Angular Pressings
The electron scanning micrograph for the treatment of.
Specific embodiment
With reference to embodiment, the invention will be further described：
A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, including following operating procedure：
(1) magnesium metal and metallic zinc are fused into liquid metal；
(2) liquid metal in step (1) is stirred, refining treatment obtains refining liquid metal, machine after molten metal fusing
Tool is stirred 3~5 minutes, and then the slag such as standing removes slag after floating；
(3) by the refining liquid casting of metals in step (2) into alloy cast ingot；
(4) alloy cast ingot obtained in step (3) is carried out homogenizing heat treatment and severe plastic deformation, Homogenization Treatments temperature
It it is 300~350 DEG C, the time is 2~6 hours；
(5) solution treatment will be carried out by the magnesium-zinc alloy after severe plastic deformation treatment in step (4), heat treatment temperature is
300~325 DEG C, 2~4 hours are incubated after reaching temperature, are cooled fast in air or water after then sample is taken out
Room temperature, you can obtain the microscopic structure of single-phase supersaturated solid solution.
A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, Zn-ef ficiency in alloy cast ingot described in step (3)
6.0% of content less than gross mass；Severe plastic deformation described in step (4) is that the passages such as severe plastic deformation technique use are squeezed
The methods such as pressure, reciprocating extrusion, accumulative deflection is more than 400%；The time being incubated described in step (5) according to specimen size and
Shape is determined.
A kind of principle of the preparation method of single-phase supersaturated solid solution magnesium-zinc alloy is as follows：Magnesium-zinc alloy is first carried out acutely
Plastic deformation treatment, when dependent variable is sufficiently large, original thick second is mutually broken into little particle, while crystal grain can be refined significantly
And have the crystal defects such as a large amount of dislocations, room.Boundary quantity is more in unit volume, and diffusion velocity is faster, and solute is former
The distance of son needs diffusion is shorter, and diffusion of the great number of grains defect for zinc in the base is highly beneficial in material.Subsequent
In heat treatment process, the dissolution velocity of the second phase greatly speeds up, so as to obtain the magnesium-zinc alloy of single-phase supersaturated solid solution.
Embodiment 1：
As shown in figures 1-4, a kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, after the casting of Mg-5%wt.Zn alloys
Formation bulk eutectic, decomposed by eutectic after 350 DEG C of homogenization heat treatments in 4 hours, but second do not disappear mutually and still thick
Greatly, this explanation Homogenization Treatments effect is unsatisfactory.It is thick by the by after 200 DEG C, the treatment of 4 passage Equal-channel Angular Pressings
Two-phase is broken into little particle, and is evenly distributed, then by 350 DEG C of 4 hours homogenization heat treatments, the regional edge of original second phase
Boundary is fuzzy or disappears, and except a small amount of solute atoms accumulation regions, is almost completely dissolved.
Embodiment 2：
As shown in figures 5-8, a kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, after the casting of Mg-6%wt.Zn alloys
Formation bulk eutectic, by 4 hours 350 DEG C homogenization heat treatment after eutectic decompose, still there is part second not dissolve mutually.
By after 200 DEG C, the treatment of 6 passage Equal-channel Angular Pressings, thick massive phase breaking deformation size reduces, and is around distributed with thin
Small precipitated phase, again by 350 DEG C of 4 hours homogenization heat treatments after the treatment of 6 passage Equal-channel Angular Pressings, except having on crystal boundary
The Second Phase Particle distribution of a small amount of small size, almost mutually exists in matrix without second, and this explanation present invention is for homogenization magnesium
The microscopic structure of kirsite, it is very effective to prepare single-phase supersaturated solid solution magnesium-zinc alloy.
Claims (4)
1. a kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, it is characterised in that including following operating procedure：
(1) magnesium metal and metallic zinc are fused into liquid metal；
(2) liquid metal in step (1) is stirred, refining treatment obtains refining liquid metal, machine after molten metal fusing
Tool is stirred 3~5 minutes, and then the slag such as standing removes slag after floating；
(3) by the refining liquid casting of metals in step (2) into alloy cast ingot；
(4) alloy cast ingot obtained in step (3) is carried out homogenizing heat treatment and severe plastic deformation, Homogenization Treatments temperature
It it is 300~350 DEG C, the time is 2~6 hours；
(5) solution treatment will be carried out by the magnesium-zinc alloy after severe plastic deformation treatment in step (4), heat treatment temperature is
300~325 DEG C, 2~4 hours are incubated after reaching temperature, are cooled fast in air or water after then sample is taken out
Room temperature, you can obtain the microscopic structure of single-phase supersaturated solid solution.
2. a kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, it is characterised in that：Alloy cast ingot described in step (3)
6.0% of middle Zn-ef ficiency content less than gross mass.
3. a kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, it is characterised in that：Violent plasticity described in step (4)
The methods such as channel pressings, the reciprocating extrusions such as the use of severe plastic deformation technique are deformed into, accumulative deflection is more than 400%.
4. a kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy, it is characterised in that：Described in step (5) be incubated when
Between determined according to specimen size and shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159036.8A CN106868369A (en) | 2017-03-17 | 2017-03-17 | A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710159036.8A CN106868369A (en) | 2017-03-17 | 2017-03-17 | A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106868369A true CN106868369A (en) | 2017-06-20 |
Family
ID=59172392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710159036.8A Pending CN106868369A (en) | 2017-03-17 | 2017-03-17 | A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106868369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111154992A (en) * | 2019-07-02 | 2020-05-15 | 山东瑞安泰医疗技术有限公司 | Preparation method and application of zinc-copper supersaturated solid solution intravascular stent material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121979A (en) * | 2007-09-20 | 2008-02-13 | 上海交通大学 | Method for preparing Mg-Zn-Zr deformation magnesium alloy |
| TW201005106A (en) * | 2008-07-24 | 2010-02-01 | Chung Shan Inst Of Science | Magnesium alloy board of grain refinement and preparation method thereof |
| CN104284993A (en) * | 2012-06-26 | 2015-01-14 | 百多力股份公司 | Magnesium alloy, method for the production thereof and use thereof |
| CN105886804A (en) * | 2016-05-16 | 2016-08-24 | 扬州大学 | Preparation method of high-performance magnesium-zinc system alloy |
-
2017
- 2017-03-17 CN CN201710159036.8A patent/CN106868369A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101121979A (en) * | 2007-09-20 | 2008-02-13 | 上海交通大学 | Method for preparing Mg-Zn-Zr deformation magnesium alloy |
| TW201005106A (en) * | 2008-07-24 | 2010-02-01 | Chung Shan Inst Of Science | Magnesium alloy board of grain refinement and preparation method thereof |
| CN104284993A (en) * | 2012-06-26 | 2015-01-14 | 百多力股份公司 | Magnesium alloy, method for the production thereof and use thereof |
| CN105886804A (en) * | 2016-05-16 | 2016-08-24 | 扬州大学 | Preparation method of high-performance magnesium-zinc system alloy |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111154992A (en) * | 2019-07-02 | 2020-05-15 | 山东瑞安泰医疗技术有限公司 | Preparation method and application of zinc-copper supersaturated solid solution intravascular stent material |
| CN111154992B (en) * | 2019-07-02 | 2021-10-08 | 山东瑞安泰医疗技术有限公司 | Preparation method and application of zinc-copper supersaturated solid solution intravascular stent material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Achieving exceptionally high strength in binary Mg-13Gd alloy by strong texture and substantial precipitates | |
| Fan | Development of the rheo-diecasting process for magnesium alloys | |
| Ghandvar et al. | Effect of hot extrusion on microstructural evolution and tensile properties of Al-15% Mg2Si-xGd in-situ composites | |
| CN108977677A (en) | The metamorphism treatment method of aluminium alloy in a kind of low pressure casting process | |
| CN106917022A (en) | A kind of preparation method of biological medical magnesium alloy silk | |
| Chen et al. | Microstructure and properties of Cu-Cr-Zr alloy with columnar crystal structure processed by upward continuous casting | |
| CN108950337B (en) | Low-cost high-strength Mg-Zn-Y-Ce-Ca magnesium alloy and preparation method thereof | |
| Zhang et al. | Tuning the microstructure morphology and genetic mechanical properties of 2219 Al alloy with ultrasonic treatment | |
| Ming et al. | Effects of melt treatment temperature and isothermal holding parameter on water-quenched microstructures of A356 aluminum alloy semisolid slurry | |
| CN103774071B (en) | A kind of preparation method with spherical second-phase superplasticity magnesium alloy | |
| Guobing et al. | Structure heredity effect of Mg-10Y master alloy in AZ31 magnesium alloy | |
| Hou et al. | Characteristics and formation mechanisms of defect bands in vacuum-assisted high-pressure die casting AE44 alloy | |
| CN106868369A (en) | A kind of preparation method of single-phase supersaturated solid solution magnesium-zinc alloy | |
| Xiaodong et al. | Effects of different state Mg-5Sr-10Y master alloys on the microstructure refinement of AZ31 magnesium alloy | |
| Guo et al. | Rheocasting of A356 alloy by low superheat pouring with a shearing field | |
| Guo et al. | Efficient refinement of spherical grains by LSPSF rheocasting process | |
| Zhou et al. | Semi-solid continuous casting–extrusion of AA6201 feed rods | |
| CN101476095B (en) | Heat working technological process for high strength deformed magnesium alloy | |
| Alizadeh et al. | Effect of periodic melt shearing process and cooling rate on structure and hardness of Al–0.7 Fe aluminum alloy | |
| Guo et al. | Continuous fabrication of sound semi-solid slurry for rheoforming | |
| Ji et al. | Solidification behavior of the remnant liquid in the sheared semisolid slurry of Sn–15 wt.% Pb alloy | |
| Yang et al. | Coordinated deformation and high formability mechanisms of 7A36 aluminum alloy by Sc micro-alloying and low-frequency electromagnetic casting | |
| Rogal et al. | Effect of hot rolling and equal-channel angular pressing on generation of globular microstructure in semi-solid Mg-3% Zn alloy | |
| Sheng et al. | Microstructure evolution of Al–Sr master alloy during continuous extrusion | |
| Guo et al. | Low superheat pouring with a shear field in rheocasting of aluminum alloys |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170620 |
|
| RJ01 | Rejection of invention patent application after publication |