CN106811640A - A kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof - Google Patents
A kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof Download PDFInfo
- Publication number
- CN106811640A CN106811640A CN201510862965.6A CN201510862965A CN106811640A CN 106811640 A CN106811640 A CN 106811640A CN 201510862965 A CN201510862965 A CN 201510862965A CN 106811640 A CN106811640 A CN 106811640A
- Authority
- CN
- China
- Prior art keywords
- alloy
- content
- strength
- magnesium lithium
- lithium alloy
- 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
-
- 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
- C22C1/03—Making non-ferrous alloys by melting using master alloys
-
- 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
The present invention relates to high-strength high-plastic magnesium lithium alloy field, more particularly to a kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof solves the problems, such as that magnesium alloy is difficult while having high intensity and high-ductility.By reasonable selection alloying element, long-periodic structure is mutually incorporated into Li contents magnesium lithium alloy matrix high, prepare with extremely-low density, high intensity, high-ductility Mg-Li alloys.The magnesium lithium alloy material is the single-phase alloy in Mg-Li alloy β-Li phase regions, and its component element for including and its content are：Lithium (Li) content is 11.5%~30%；Zinc (Zn) content is 2~6%；Yttrium (Y) content is 3~10% and the magnesium of surplus (Mg) composition.The alloy has stronger room temperature forming ability, can be cold rolled to thin sheet material (0.3~5mm), and its processing technology is simple, convenient.The tensile strength of alloy material of the present invention is σb=180~320MPa, yield strength is σ0.2=130~250MPa, elongation percentage is that δ is more than 40%, and density is 1.1~1.6g/cm3。
Description
Technical field
It is more particularly to a kind of that there is extremely-low density, height simultaneously the present invention relates to high-strength high-plastic magnesium lithium alloy field
Intensity, high-ductility and can temperature-room type plasticity shaping the high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof.
Background technology
(density is 0.534g/cm to magnesium with lithium3) carry out alloying after, formation will, specific strength low with density
The advantages of high with specific stiffness, can effectively overcome magnesium alloy to cause the shortcoming of plasticity difference because of close-packed hexagonal structure, make
Magnesium lithium alloy can be used as a kind of potential candidate's novel light metal in the high-technology fields such as Aero-Space and automobile
Material.For Mg-Li alloys, when Li contents are less than 5.5%, it is organized as Li and is solid-solution in Mg lattices
α-Mg the solid solution of formation.When Li contents are higher than 5.5wt.%, its it is main mutually for hcp structures αsolidsolution and
β-Li the phases of bcc structures, and when Li contents are higher than 11.5wt.%, alloy will be completely by β phase compositions.Wherein,
Duplex structure (α-Mg+ β-Li) is beneficial for the intensity and superplasticity of alloy.With Traditional project metal knot
Structure material is compared, and magnesium lithium alloy is most light in applying at present.Meanwhile, the alloy has strong cold and hot deformation energy
The characteristics such as power, low Anisotropy and good cryogenic property.However, magnesium lithium alloy there is also definitely by force
The shortcomings of spending poor low, heat-resisting ability, creep-resistant property and corrosion resistance extreme difference, seriously constrains answering for alloy
Developed with further.In recent years, document (Mater.Lett. (material news flash) 60 (2006) 3272) and (Scr.
Mater. (material bulletin) 51 (2004) 1057) following two kinds of schedule of reinforcements are primarily focused on to improve Mg-Li alloys
Intensity：1) alloying strengthening；2) large plastometric set reinforcing.In addition, document ((material is fast for Mater.Lett.
News) 60 (2006) 1863) tensile strength of complex intensifying Mg-Li alloys of report is also only 189MPa.It can be seen that,
Using traditional processing processing means such as alloying, heat treatment and mechanical large deformation, magnesium lithium alloy is almost made
Intensity has reached the limit.In recent years, study and show to long period (LPSO) phase in order is introduced in magnesium alloy, can
The yield strength of Mg-2%Y-1%Zn alloys is set to be promoted to 610MPa (Mater.Trans. (material proceedings) 42
(2001)1171).Therefore, microstructure optimization and the novel reinforced introducing in magnesium lithium alloy are furtherd investigate,
The mechanical property of alloy not only can be significantly lifted, the engineer applied of Mg-Li alloys can be also greatly promoted.
The content of the invention
It is an object of the invention to provide high-strength high-plastic magnesium lithium alloy of a kind of novel ultra-light and preparation method thereof, solve
Magnesium alloy can not have simultaneously it is high-strength it is high-plastic and can room temperature forming the problems such as.
The technical scheme is that：
A kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light, Mg-Li alloys are the single-phase magnesium lithium alloys in β-Li phase regions,
Weight percentage, its component element for including and its content are：Lithium content is 11.5~30%, and zinc contains
It is 2~6% to measure, and yttrium content is 3~10%, and content of magnesium is balance.
The high-strength high-plastic magnesium lithium alloy of described novel ultra-light, preferred composition range, weight percentage,
The component element and its content that Mg-Li alloys are included be：Lithium content is 15~25%；Zn content is 3~5%,
Yttrium content is 5~8%, and content of magnesium is balance.
The weight ratio Y/Zn of the high-strength high-plastic magnesium lithium alloy of described novel ultra-light, yttrium and zinc is 1~2.
The high-strength high-plastic magnesium lithium alloy of described novel ultra-light, the density of Mg-Li alloys is 1.1~1.6g/cm3。
The high-strength high-plastic magnesium lithium alloy of described novel ultra-light, Mg-Li alloys carry out temperature-room type plasticity shaping.
The high-strength high-plastic magnesium lithium alloy of described novel ultra-light, the tensile strength of Mg-Li alloys is σb=180~
320MPa, yield strength is σ0.2=130~250MPa, elongation percentage is that δ is more than 40%.
The preparation method of the high-strength high-plastic magnesium lithium alloy of described novel ultra-light, the preparation of Mg-Li alloys includes two
Step：Refining first meets the Mg-Zn-Y ternary alloy three-partalloys of component requirements, then by alloy and pure Li in vacuum
Remelting is carried out in stove, to ensure being evenly distributed and reducing burning of the Li elements under the conditions of high melt for alloying element
Damage.
Design philosophy of the invention is：
The present invention is by reasonable selection alloying element and controls its content and proportioning, and the matrix for making alloy is β-Li lists
Phase constitution.Meanwhile, long-periodic structure is mutually incorporated into magnesium lithium alloy matrix.Fully combine single-phase group of β-Li
The notable invigoration effect of the low-density and high-ductility and long-periodic structure phase that have is knitted, has been prepared with ultralow close
Degree, high intensity, high-ductility and the plastic Review on Super Light Mg-Li-Zn-Y alloys of room temperature.
Advantages of the present invention and beneficial effect are：
1st, the present invention greatly makes alloy density be under control by controlling the Li contents in alloy, or even
Less than the density of traditional magnesium lithium alloy, reached truly is ultralight, is that structure member lightweight demand is carried
Candidate material is supplied.
2nd, alloy of the invention is while maintain higher moulding, also the intensity with engineering demand, especially fits
Together in lightweight, high-strength, high-ductility use material demand.
3rd, alloy of the invention has room temperature forming ability, considerably reduces alloy subsequent machining cost.
Brief description of the drawings
Fig. 1 phases containing long-range structure magnesium lithium alloy (embodiment 1, embodiment 2 and embodiment 3) XRD result figures.
Fig. 2 is ESEM (SEM) observation photo and the power spectrum result of embodiment 1 and the 2-in-1 gold of embodiment.
Wherein, Fig. 2 (a), (b) and (g) is the low power SEM high observation photos and the EDS of alloy phase of the alloy of embodiment 1
EDAX results；Fig. 2 (c), (d) and (h) is low power SEM high observation photo and the alloy of the 2-in-1 gold of embodiment
The EDS EDAX results of phase.Fig. 2 (e) and (f) are the low power SEM high observation photos of the alloy of embodiment 3.
Specific embodiment
With reference to specific embodiments and the drawings, the present invention will be further described, it is necessary to explanation is the reality that is given
Apply example be for illustrating the present invention, rather than limitation of the present invention, protection scope of the present invention be not limited to
The specific embodiment of lower implementation.
Embodiment 1
I), alloy composition
10 kilograms of aluminum magnesium containing alloy materials, the weight difference of each alloying element of alleged taking-up are configured by following proportioning
For：The magnesium (Mg) of 1.2 kilograms of lithium (Li), 0.2 kilogram of zinc (Zn), 0.4 kilogram of yttrium (Y) and surplus.
By weight percentage, alloying component is Mg-12%Li-2%Zn-4%Y.
II), alloy smelting
The smelting of alloy is in two steps：
1) in 10 kilograms of crucibles and resistance furnace of capacity, it is sufficiently stirred for, by alloying element Y and Zn
Fusing, prepares Mg-2%-4%Y alloys.
2) put Mg-2%-4%Y alloys and pure lithium carries out remelting in a vacuum furnace.After alloy is completely melt,
30 minutes are incubated at 720 DEG C, are poured into a mould in vacuum drying oven.
III), homogenization and deformation processing
1) by ingot casting peeling.
2) the ingot casting aluminium foil after peeling is tightly wrapped up, the Homogenization Treatments of 4 hours is carried out at 450 DEG C.
3) ingot casting after Homogenization Treatments is cut into the thick sheet materials of 15mm, is rolled at room temperature, divide 5
It is secondary to be rolled into the sheet material that thickness is 3mm.
IV), microstructure is characterized
Its preparation process of the sample of structure observation is as follows：Under the protection of kerosene, sample is mechanically polished；
Facies analysis is carried out to alloy using X-ray diffraction analysis, the phase composition for showing alloy is β-Li and Mg12ZnY
(LPSO phases), corresponding X-ray collection of illustrative plates is shown in accompanying drawing 1；Low power electronic scanner microscope observation photo high is shown in accompanying drawing
2 (a) and (b).EDAX results prove, white particle phase is that LPSO meets each other accompanying drawing 2 (g).
V), Mechanics Performance Testing
Axis direction the rolling to sample full-length parallel to material of the room temperature mechanical stretch performance sample of alloy
It is 25mm, width is 5mm, and thickness is 2mm.The strain rate of tension test is 1 × 10-3s-1.Stretching
Experiment is carried out on MTS (858.01M) tension-torsion testing machine.The tensile strength of the material of the aluminum magnesium containing alloy is
270MPa, yield strength is 210MPa, and elongation percentage is δ=56%, and density is 1.31g/cm3。
Embodiment 2
I), alloy composition
The each element of taking-up is as alleged by 10 kilograms of aluminum magnesium containing alloy materials of following proportioning configuration：Lithium (Li) 1.4
Kilogram, the magnesium (Mg) of 0.3 kilogram of zinc (Zn), 0.6 kilogram of yttrium (Y) and surplus.By weight percentage,
Alloying component is Mg-14%Li-3%Zn-6%Y.
II), alloy smelting
The smelting of reference implementation example 1.Difference is：Both zinc (Zn) is different with yttrium (Y) content.
III), homogenization and deformation processing
The homogenization and rolling process of reference implementation example 1.
IV), microstructure is characterized
The microstructure of reference implementation example 1 is characterized.Main in alloy is mutually β-Li and Mg12ZnY (LPSO phases),
Corresponding X-ray collection of illustrative plates is shown in accompanying drawing 1；Compared with alloy in embodiment 1, the quantity of the LPSO phases in the alloy
Increased, corresponding scanning electricity crystalline substance photo is shown in accompanying drawing 2 (c) and (d).EDAX results are shown in accompanying drawing 2 (h).
V), Mechanics Performance Testing
The Mechanics Performance Testing of reference implementation example 1.The tensile strength of the material of the aluminum magnesium containing alloy is 310MPa,
Yield strength is 250MPa, and elongation percentage is δ=45%, and density is 1.29g/cm3。
Embodiment 3
I), alloy composition
The each element of taking-up is as alleged by 10 kilograms of aluminum magnesium containing alloy materials of following proportioning configuration：Lithium (Li) 1.8
Kilogram, the magnesium (Mg) of 0.3 kilogram of zinc (Zn), 0.6 kilogram of yttrium (Y) and surplus.By weight percentage,
Alloying component is Mg-18%Li-3%Zn-6%Y.
II), alloy smelting
The smelting of reference implementation example 1.Difference is：Both zinc (Zn) is different with yttrium (Y) content.
III), homogenization and deformation processing
The homogenization and rolling process of reference implementation example 1.
IV), microstructure is characterized
The microstructure of reference implementation example 1 is characterized.Main in alloy is mutually β-Li and Mg12ZnY (LPSO phases),
Corresponding X-ray collection of illustrative plates is shown in accompanying drawing 1；Compared with alloy in embodiment 2, the quantity of the LPSO phases in the alloy
Essentially unchanged, the quantity of formation for illustrating LPSO phases is relevant with the Zn and the amount of Y that add, corresponding scanning electricity
Brilliant photo is shown in accompanying drawing 2 (e) and (f).EDAX results are consistent with accompanying drawing 2 (g) and (h).
V), Mechanics Performance Testing
The Mechanics Performance Testing of reference implementation example 1.The tensile strength of the material of the aluminum magnesium containing alloy is 290MPa,
Yield strength is 240MPa, and elongation percentage is δ=65%, and density is 1.19g/cm3。
Embodiment result shows that long-periodic structure is mutually incorporated into height by the present invention by reasonable selection alloying element
In Li content magnesium lithium alloy matrixes, prepared with extremely-low density, high intensity, high-ductility Mg-Li alloys.
The alloy has stronger room temperature forming ability, can be cold rolled to thin sheet material (0.3~5mm), its processing technology
It is simple, convenient.
Claims (7)
1. the high-strength high-plastic magnesium lithium alloy of a kind of novel ultra-light, it is characterised in that：Mg-Li alloys are in β-Li phase regions
Single-phase magnesium lithium alloy, weight percentage, its component element for including and its content are：Lithium content is
11.5~30%, Zn content is 2~6%, and yttrium content is 3~10%, and content of magnesium is balance.
2. according to the high-strength high-plastic magnesium lithium alloy of the novel ultra-light described in claim 1, it is characterised in that：Preferably
Composition range, weight percentage, the component element and its content that Mg-Li alloys are included be：Lithium content
It is 15~25%；Zn content is 3~5%, and yttrium content is 5~8%, and content of magnesium is balance.
3. according to the high-strength high-plastic magnesium lithium alloy of the novel ultra-light described in claim 1 or 2, it is characterised in that：Yttrium
It is 1~2 with the weight ratio Y/Zn of zinc.
4. according to the high-strength high-plastic magnesium lithium alloy of the novel ultra-light described in claim 1, it is characterised in that：Mg-Li
The density of alloy is 1.1~1.6g/cm3。
5. according to the high-strength high-plastic magnesium lithium alloy of the novel ultra-light described in claim 1, it is characterised in that：Mg-Li
Alloy carries out temperature-room type plasticity shaping.
6. according to the high-strength high-plastic magnesium lithium alloy of the novel ultra-light described in claim 1, it is characterised in that：Mg-Li
The tensile strength of alloy is σb=180~320MPa, yield strength is σ0.2=130~250MPa, elongation percentage is δ
More than 40%.
7. a kind of preparation method of the high-strength high-plastic magnesium lithium alloy of novel ultra-light described in claim 1, its feature exists
In the preparation of Mg-Li alloys includes two steps：Refining first meets the Mg-Zn-Y ternarys conjunction of component requirements
Gold, then carries out remelting in a vacuum furnace by alloy and pure Li, to ensure being evenly distributed and reducing for alloying element
Scaling loss of the Li elements under the conditions of high melt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510862965.6A CN106811640A (en) | 2015-11-30 | 2015-11-30 | A kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510862965.6A CN106811640A (en) | 2015-11-30 | 2015-11-30 | A kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106811640A true CN106811640A (en) | 2017-06-09 |
Family
ID=59108408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510862965.6A Pending CN106811640A (en) | 2015-11-30 | 2015-11-30 | A kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106811640A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675053A (en) * | 2017-08-29 | 2018-02-09 | 西安理工大学 | A kind of preparation method of high strength magnesium lithium alloy and its deep cooling intensive treatment |
| CN107779708A (en) * | 2017-12-08 | 2018-03-09 | 浙江海洋大学 | A kind of high intensity super-light Mg-Li alloy and preparation method thereof |
| CN108315618A (en) * | 2018-01-22 | 2018-07-24 | 上海交通大学 | A kind of preparation method of LPSO structures enhancing magnesium lithium alloy |
| CN113584364A (en) * | 2021-05-21 | 2021-11-02 | 沈阳理工大学 | Method for synergistically improving mechanical and corrosion properties of high-lithium-content ultralight magnesium-lithium-based alloy |
| CN114807703A (en) * | 2022-03-25 | 2022-07-29 | 哈尔滨工程大学 | Preparation method of high-strength high-plasticity magnesium-lithium alloy based on high solid solution content |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649576A (en) * | 1992-06-19 | 1994-02-22 | Mitsui Mining & Smelting Co Ltd | Superplastic magnesium alloy |
| CN1605650A (en) * | 2004-12-01 | 2005-04-13 | 北京航空航天大学 | Aluminum magnesium containing alloy materials and method for making same |
| CN1948532A (en) * | 2006-11-01 | 2007-04-18 | 中国科学院金属研究所 | Quasi crystal phase fortified magnesium lithium alloy and its preparation method |
| CN101381831A (en) * | 2008-10-29 | 2009-03-11 | 仝仲盛 | High plasticity magnesium alloy |
| CN101768689A (en) * | 2010-01-28 | 2010-07-07 | 西安理工大学 | Magnesium alloy with high strength, super toughness and low density and preparation method thereof |
-
2015
- 2015-11-30 CN CN201510862965.6A patent/CN106811640A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0649576A (en) * | 1992-06-19 | 1994-02-22 | Mitsui Mining & Smelting Co Ltd | Superplastic magnesium alloy |
| CN1605650A (en) * | 2004-12-01 | 2005-04-13 | 北京航空航天大学 | Aluminum magnesium containing alloy materials and method for making same |
| CN1948532A (en) * | 2006-11-01 | 2007-04-18 | 中国科学院金属研究所 | Quasi crystal phase fortified magnesium lithium alloy and its preparation method |
| CN101381831A (en) * | 2008-10-29 | 2009-03-11 | 仝仲盛 | High plasticity magnesium alloy |
| CN101768689A (en) * | 2010-01-28 | 2010-07-07 | 西安理工大学 | Magnesium alloy with high strength, super toughness and low density and preparation method thereof |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107675053A (en) * | 2017-08-29 | 2018-02-09 | 西安理工大学 | A kind of preparation method of high strength magnesium lithium alloy and its deep cooling intensive treatment |
| CN107675053B (en) * | 2017-08-29 | 2019-09-27 | 西安理工大学 | A kind of preparation method of high strength magnesium lithium alloy and its deep cooling intensive treatment |
| CN107779708A (en) * | 2017-12-08 | 2018-03-09 | 浙江海洋大学 | A kind of high intensity super-light Mg-Li alloy and preparation method thereof |
| CN108315618A (en) * | 2018-01-22 | 2018-07-24 | 上海交通大学 | A kind of preparation method of LPSO structures enhancing magnesium lithium alloy |
| CN113584364A (en) * | 2021-05-21 | 2021-11-02 | 沈阳理工大学 | Method for synergistically improving mechanical and corrosion properties of high-lithium-content ultralight magnesium-lithium-based alloy |
| CN113584364B (en) * | 2021-05-21 | 2022-05-06 | 沈阳理工大学 | Method for synergistically improving mechanical and corrosion properties of high-lithium-content ultralight magnesium-lithium-based alloy |
| CN114807703A (en) * | 2022-03-25 | 2022-07-29 | 哈尔滨工程大学 | Preparation method of high-strength high-plasticity magnesium-lithium alloy based on high solid solution content |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100432258C (en) | Quasi crystal phase fortified magnesium lithium alloy and its preparation method | |
| CN106811640A (en) | A kind of high-strength high-plastic magnesium lithium alloy of novel ultra-light and preparation method thereof | |
| Duan et al. | Developed constitutive models, processing maps and microstructural evolution of Pb-Mg-10Al-0.5 B alloy | |
| CN105755340B (en) | High strength and low cost high-ductility high heat conduction wrought magnesium alloy and preparation method thereof | |
| Kong et al. | Interfacial microstructure and shear strength of Ti–6Al–4V/TiAl laminate composite sheet fabricated by hot packed rolling | |
| CN106676357B (en) | A kind of high plastic magnesium alloy and preparation method thereof | |
| Liu et al. | Dynamic precipitation behavior and mechanical property of an Mg94Y4Zn2 alloy prepared by multi-pass successive equal channel angular pressing | |
| CN101509091A (en) | High-strength high-ductility Al-Zn-Mg-Cu-Sr alloy and production method | |
| CN104046869B (en) | A kind of preparation method of magnesium Li-Si alloy | |
| CN107326235B (en) | A kind of high-strength Mg-Zn-Al series deformation magnesium alloys and preparation method thereof containing Cu | |
| CN110343923A (en) | A kind of magnesium lithium alloy and preparation method thereof of low-density and high-strength high-ductility | |
| Shi et al. | Effects of adding Al–Si eutectic alloy and hot rolling on microstructures and mechanical behavior of Mg–8Li alloys | |
| Emamy et al. | Microstructures and tensile properties of Al/2024–Al4Sr composite after hot extrusion and T6 heat treatment | |
| CN107541630A (en) | Effectively strengthen two-phase Mg Li Zn Y magnesium lithium alloys and preparation method using rare earth element y | |
| Meng et al. | Effect of pre-deformation on aging creep of Al–Li–S4 alloy and its constitutive modeling | |
| Yang et al. | Improvement of microstructure and mechanical properties of TiAl− Nb alloy by adding Fe element | |
| CN106967907A (en) | The Ship body big specification rectangle ingot of aluminium alloy and its manufacture method | |
| CN107675053B (en) | A kind of preparation method of high strength magnesium lithium alloy and its deep cooling intensive treatment | |
| Peng et al. | Effect of solution treatment on microstructure and mechanical properties of cast Al–3Li–1.5 Cu–0.2 Zr alloy | |
| CN108315618A (en) | A kind of preparation method of LPSO structures enhancing magnesium lithium alloy | |
| CN106978557A (en) | A kind of magnesium lithium alloy and preparation method thereof | |
| Song et al. | Study on W/Ni interface reaction and strengthening mechanism of tungsten particle reinforced nickel-based alloys by laser-direct energy deposition | |
| CN109182858A (en) | One kind heat resistance magnesium alloy containing Ho and preparation method thereof | |
| CN109913731A (en) | A kind of high tough Ti-Al series intermetallic compound and preparation method thereof | |
| CN109161767A (en) | A kind of creep-resistant property magnesium alloy of the phase containing W and preparation method thereof |
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: 20170609 |
|
| RJ01 | Rejection of invention patent application after publication |