CN108728710A - A kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation - Google Patents
A kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation Download PDFInfo
- Publication number
- CN108728710A CN108728710A CN201810740433.9A CN201810740433A CN108728710A CN 108728710 A CN108728710 A CN 108728710A CN 201810740433 A CN201810740433 A CN 201810740433A CN 108728710 A CN108728710 A CN 108728710A
- Authority
- CN
- China
- Prior art keywords
- deformation
- magnesium alloy
- nanometer gradient
- vw93m
- superelevation
- 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
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
-
- 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 a kind of strong nanometer gradient magnesium alloy preparation methods of VW93M superelevation.The quality of magnesium alloy percent composition is：Mg-8.0~9.6Gd-1.8~3.2Y-0.3~0.7Zr-0.02~0.5Ag-0.02~0.3Er,It is squeezed into bar after semi-continuous casting ingot blank is carried out Homogenization Treatments,Then it swages deformation,It is 100 ~ 380 DEG C to control temperature of swaging,Pass deformation is 5 ~ 20%,Total deformation is 5 ~ 60%,Charging rate is 1 ~ 4mm/min,Feedstock direction is constant in deformation,3 ~ 30mm of diameter is made,The nanometer gradient magnesium alloy rod of long 1000 ~ 2000mm,1 ~ 2 μm is gradually increased to by 30 ~ 100nm from bar center portion to edge crystallite dimension,In conjunction with follow-up aging strengthening model Alloy At Room Temperature tensile strength >=530MPa,Yield strength >=460MPa,Elongation after fracture >=8%.
Description
Technical field
The invention belongs to super high-strength magnesium alloy preparation fields, the more particularly to strong nanometer gradient magnesium alloy preparation method of superelevation.
Background technology
Magnesium alloy has many advantages, such as low-density, high specific strength, high specific stiffness, high-damping, as light structures material of new generation
Material, excellent loss of weight characteristic are of great significance to fields such as aerospace, communications and transportation.However existing magnesium alloy mechanical property
It can be relatively low, it is difficult to meet the needs of fields such as aerospace are for high performance material, thus improve magnesium alloy strength to be with toughness
The important goal of magnesium alloy research.Nanometer gradient metal material is the side for growing up prepare high-toughness metal material in recent years
Method, it is significant to magnesium alloy with high strength and ductility material preparation that exploration prepares nanometer gradient magnesium alloy new technology.However, preparing at present
The method of nanometer gradient magnesium alloy is deficient, is badly in need of exploitation nanometer gradient magnesium alloy novel preparation method.
Invention content
The invention reside in provide a kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation.The quality of magnesium alloy hundred
Divide than ingredient and is：Mg-8.0 ~ 9.6Gd-1.8 ~ 3.2Y-0.3 ~ 0.7Zr-0.02 ~ 0.5Ag-0.02 ~ 0.3Er is first used semicontinuous
Casting method produces magnesium alloy ingot blank, and bar is squeezed into after ingot blank is carried out homogenization heat treatment, is then carried out to extruded bars
It swages deformation.Gradually increased from center portion to edge using nanometer gradient magnesium alloy crystallite dimension made from the method, center portion crystal grain
Size is 30 ~ 100nm, and edge crystallite dimension is 1 ~ 2 μm, and gained nanometer gradient magnesium alloy rod size is 3 ~ 30mm of diameter, length
1000 ~ 2000mm, in conjunction with follow-up aging strengthening model Alloy At Room Temperature tensile strength >=530MPa, yield strength >=460MPa is had no progeny
Elongation >=8%.
The strong nanometer gradient magnesium alloy preparation method of VW93M superelevation of the present invention, including step in detail below：
A. magnesium alloy ingot blank is produced using semi-continuous casting method；
B. magnesium alloy ingot blank is subjected to homogenization heat treatment, the blank after Homogenization Treatments is subjected to crimp；
C. extruded bars are subjected to deformation of swaging, control swage temperature be 100 ~ 380 DEG C, pass deformation is 5 ~ 20%, total deformation
Amount is 5 ~ 60%, and control charging rate is 1 ~ 4mm/min, and feedstock direction remains unchanged in deformation process；
D. obtained nanometer gradient magnesium alloy is subjected to aging strengthening model.
The deformation of swaging, it is 100 ~ 200 DEG C to control temperature of swaging.
The deformation of swaging, it is 10 ~ 60% to control total deformation of swaging.
The deformation of swaging, control charging rate are 2 ~ 4mm/min.
Advantages of the present invention has：
1) extruded bars are subjected to deformation of swaging.First, high Steady-State security can be achieved in deformation of swaging, and reduces opening for magnesium alloy
Tendency is split, achievable total deformation is improved；Secondly, high strain rate can be achieved in deformation of swaging, and high strain rate can be improved
The dislocation density that can be accumulated before magnesium alloy cracking, high density dislocation, which induce, forms nanometer scale substructure, in turn inside magnesium alloy
It is formed nanocrystalline；Again, deformation of swaging can form different stress field along diameter of rod different parts, excite different texturing machines
System, forms the tissue of consecutive variations, and nanometer gradient magnesium alloy is made.It is in nanometer gradient structure to the magnesium alloy deformation that swage
The main reason for.
2) rational deformation parameter of swaging is explored.Wrought magnesium alloy tissue is determined by deformation parameter.It swages the change of deformation
Shape rate is higher, rate of deformation processing method low compared to other, such as the modes such as extruding, compression are easier that magnesium alloy is caused to be opened
It splits.Deformation parameter of suitably swaging is selected just to can guarantee acquisition nanometer magnesium alloy under the premise of alloy is indehiscent.It swages temperature
It is too low, pass deformation is excessively high, it is excessively high to easily cause stress raisers, causes to crack.Temperature of swaging is excessively high, shape in deformation process
At substructure it is oversized, cause newborn crystallite dimension coarse, it is difficult to be formed nanocrystalline.Pass deformation is too low, deformation collection
In on bar surface layer, it is difficult to deeply, it is difficult to formed inside bar nanocrystalline.Total deformation is too low, the nanocrystalline content of acquisition
Very few, alloy strength improves unobvious.As deflection increases, alloy constantly hardens, and plasticity declines, and alloy tearing tendency is more
Obviously, thus total deformation it is excessively high equally easily lead to alloy cracking.A large number of experiments exploration shows：Deformation parameter control is being swaged
In the range of 0 ~ 380 DEG C of temperature, pass deformation 5 ~ 20%, total deformation of swaging 5 ~ 60%, nanometer gradient structure just can get.
3) magnesium alloy ingot blank is produced using semi-continuous casting method, can reduce be mingled with, stomata, loose, centre burst etc. lack
It falls into.Control defects count can reduce its tearing tendency during deformation after unloading, improve magnesium alloy in deformation process of swaging
Formability, improve achievable total deformation of swaging, reduce adoptable temperature of swaging, and then reduce nanometer Mg alloy finished product
Crystallite dimension.Blank of swaging is prepared using pressing method, alloy defect quantity can be further decreased, reduce flaw size, improved
Achievable total deformation of swaging reduces adoptable temperature of swaging, and then reduces nanometer isomery magnesium alloy finished product crystallite dimension.
Specific implementation mode：
Embodiment 1
A. magnesium alloy used is Mg-8.0Gd-3.0Y-0.4Zr-0.05Ag-0.03Er, and magnesium is prepared using semi-continuous casting method
Alloy ingot blank, and carry out homogenization heat treatment；
B. the alloy blank after Homogenization Treatments is subjected to crimp；
C. extruded bars are subjected to deformation of swaging at 125 DEG C, pass deformation is respectively 20%, 10%, 10%, 5%, and total deformation is
38%, control charging rate is 4mm/min, and feedstock direction remains unchanged in deformation process, gained nanometer gradient magnesium alloy rod
Crystallite dimension gradually increases from center portion to edge, and center portion crystallite dimension is 30 ~ 100nm, and edge crystallite dimension is 1 ~ 2 μm, bar
Finished size is diameter 20mm, long 2000mm；
D. the bar that will swage carries out aging strengthening model.
Mechanics Performance Testing is carried out to gained nanometer gradient magnesium alloy according to GB/T228-2002, the results are shown in Table 1.
Embodiment 2
A. magnesium alloy used is Mg-8.0Gd-3.0Y-0.4Zr-0.05Ag-0.03Er, and magnesium is prepared using semi-continuous casting method
Alloy ingot blank, and carry out homogenization heat treatment；
B. the alloy blank after Homogenization Treatments is subjected to crimp；
C. extruded bars are subjected to deformation of swaging at 150 DEG C, pass deformation is respectively 15%, 10%, 10%, and total deformation is
31%, control charging rate is 4mm/min, and feedstock direction remains unchanged in deformation process, gained nanometer gradient magnesium alloy rod
Crystallite dimension gradually increases from center portion to edge, and center portion crystallite dimension is 50 ~ 100nm, and edge crystallite dimension is 1 ~ 2 μm, bar
Finished size is diameter 30mm, long 2000mm；
D. the bar that will swage carries out aging strengthening model.
Mechanics Performance Testing is carried out to gained nanometer gradient magnesium alloy according to GB/T228-2002, the results are shown in Table 1.
Embodiment 3
A. magnesium alloy used is Mg-8.0Gd-3.0Y-0.4Zr-0.05Ag-0.03Er, and magnesium is prepared using semi-continuous casting method
Alloy ingot blank, and carry out homogenization heat treatment；
B. the alloy blank after Homogenization Treatments is subjected to crimp；
C. extruded bars are subjected to deformation of swaging at 200 DEG C, pass deformation is respectively 20%, 10%, 10%, 5%, and total deformation is
38%, control charging rate is 2mm/min, and feedstock direction remains unchanged in deformation process, gained nanometer gradient magnesium alloy rod
Crystallite dimension gradually increases from center portion to edge, and center portion crystallite dimension is 70 ~ 100nm, and edge crystallite dimension is 1 ~ 2 μm, bar
Finished size is diameter 14mm, long 1000mm；
D. the bar that will swage carries out aging strengthening model.
Mechanics Performance Testing is carried out to gained nanometer gradient magnesium alloy according to GB/T228-2002, the results are shown in Table 1.
Embodiment 4
A. magnesium alloy used is Mg-8.0Gd-3.0Y-0.4Zr-0.05Ag-0.03Er, and magnesium is prepared using semi-continuous casting method
Alloy ingot blank, and carry out homogenization heat treatment；
B. the alloy blank after Homogenization Treatments is subjected to crimp；
C. extruded bars are subjected to deformation of swaging at 200 DEG C, pass deformation is respectively 10%, 10%, 20%, and total deformation is
35%, control charging rate is 3mm/min, and feedstock direction remains unchanged in deformation process, gained nanometer gradient magnesium alloy rod
Crystallite dimension gradually increases from center portion to edge, and center portion crystallite dimension is 50 ~ 100nm, and edge crystallite dimension is 1 ~ 2 μm, bar
Finished size is diameter 30mm, long 1500mm；
D. the bar that will swage carries out aging strengthening model.
Mechanics Performance Testing is carried out to gained nanometer gradient magnesium alloy according to GB/T228-2002, the results are shown in Table 1.
Embodiment 5
A. magnesium alloy used is Mg-8.0Gd-3.0Y-0.4Zr-0.05Ag-0.03Er, and magnesium is prepared using semi-continuous casting method
Alloy ingot blank, and carry out homogenization heat treatment；
B. the alloy blank after Homogenization Treatments is subjected to crimp；
C. extruded bars are subjected to deformation of swaging at 200 DEG C, pass deformation is respectively 20%, 10%, 10%, 5%, total deformation
It is 38%, control charging rate is 3mm/min, and feedstock direction remains unchanged in deformation process, gained nanometer gradient magnesium alloy bar
Material crystallite dimension gradually increases from center portion to edge, and center portion crystallite dimension is 80 ~ 100nm, and edge crystallite dimension is 1 ~ 2 μm, stick
Material finished size is diameter 22mm, long 1500mm；
D. the bar that will swage carries out aging strengthening model.
Mechanics Performance Testing is carried out to gained nanometer gradient magnesium alloy according to GB/T228-2002, the results are shown in Table 1.
1 nanometer gradient magnesium alloy room temperature tensile mechanical property of table
Claims (4)
1. a kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation, quality of magnesium alloy percent composition be Mg-8.0 ~
9.6Gd-1.8 ~ 3.2Y-0.3 ~ 0.7Zr-0.02 ~ 0.5Ag-0.02 ~ 0.3Er, it is characterised in that including following procedure：First use
Semi-continuous casting method produces magnesium alloy ingot blank, will be squeezed into bar after ingot blank Homogenization Treatments, swages to extruded bars
Deformation, control swage temperature be 100 ~ 380 DEG C, pass deformation is that 5 ~ 20%, total deformation is 5 ~ 60%, control charging rate be
1 ~ 4mm/min, feedstock direction remains unchanged in deformation process, and the nanometer gradient magnesium of 3 ~ 30mm of diameter, long 1000 ~ 2000mm is made
Alloy bar material, bar crystallite dimension gradually rise to 1 ~ 2 μm of edge from 30 ~ 100nm of center portion, and gained nanometer gradient magnesium is closed
Gold carries out ageing treatment, Alloy At Room Temperature tensile strength >=530MPa, yield strength >=460MPa, elongation after fracture >=8%.
2. the strong nanometer gradient magnesium alloy preparation method of VW93M superelevation according to claim 1, it is characterised in that：It is described to swage
Deformation, it is 100 ~ 200 DEG C to control temperature of swaging.
3. the strong nanometer gradient magnesium alloy preparation method of VW93M superelevation according to claim 1, it is characterised in that：It is described to swage
Deformation, control total deformation are 10 ~ 60%.
4. the strong nanometer gradient magnesium alloy preparation method of VW93M superelevation according to claim 1, it is characterised in that：It is described to swage
Deformation, control charging rate are 2 ~ 4mm/min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740433.9A CN108728710A (en) | 2018-07-07 | 2018-07-07 | A kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810740433.9A CN108728710A (en) | 2018-07-07 | 2018-07-07 | A kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108728710A true CN108728710A (en) | 2018-11-02 |
Family
ID=63925856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810740433.9A Pending CN108728710A (en) | 2018-07-07 | 2018-07-07 | A kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108728710A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967525A (en) * | 2019-04-08 | 2019-07-05 | 西安交通大学 | A method of preparing reversed gradient nano structural metallic material |
| CN112575214A (en) * | 2020-11-17 | 2021-03-30 | 哈工大（威海）创新创业园有限责任公司 | Rapid preparation method of gradient reinforced graphene magnesium-based composite material |
| CN113174550A (en) * | 2021-03-12 | 2021-07-27 | 江苏大学 | Preparation method of ultra-high-strength high-toughness nano-gradient twin-crystal magnesium alloy |
| CN113373329A (en) * | 2021-05-17 | 2021-09-10 | 华北理工大学 | Preparation method of nano gradient magnesium alloy |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004353067A (en) * | 2003-05-30 | 2004-12-16 | Sumitomo Denko Steel Wire Kk | Magnesium-based alloy formed body manufacturing method |
| CN101463442A (en) * | 2009-01-15 | 2009-06-24 | 上海交通大学 | Casting magnesium alloy containing Ag and heavy rare earth and preparation thereof |
| CN102828134A (en) * | 2012-09-20 | 2012-12-19 | 中南大学 | Three-level aging heat treatment process for nanometer magnesium alloy |
| CN103820689A (en) * | 2012-11-19 | 2014-05-28 | 北京有色金属研究总院 | High-strength and heat-resistant magnesium alloy containing two rare earths and preparation method thereof |
| CN106756680A (en) * | 2016-11-23 | 2017-05-31 | 西北有色金属研究院 | A kind of processing method of high-strength magnesium alloy small-sized bar |
| CN107022707A (en) * | 2017-03-23 | 2017-08-08 | 中南大学 | A kind of big component Technology for Heating Processing of strong high temperature resistant magnesium alloy of superelevation |
| CN107245619A (en) * | 2017-03-03 | 2017-10-13 | 中南大学 | A kind of strong high temperature resistant magnesium alloy of superelevation |
-
2018
- 2018-07-07 CN CN201810740433.9A patent/CN108728710A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004353067A (en) * | 2003-05-30 | 2004-12-16 | Sumitomo Denko Steel Wire Kk | Magnesium-based alloy formed body manufacturing method |
| CN101463442A (en) * | 2009-01-15 | 2009-06-24 | 上海交通大学 | Casting magnesium alloy containing Ag and heavy rare earth and preparation thereof |
| CN102828134A (en) * | 2012-09-20 | 2012-12-19 | 中南大学 | Three-level aging heat treatment process for nanometer magnesium alloy |
| CN103820689A (en) * | 2012-11-19 | 2014-05-28 | 北京有色金属研究总院 | High-strength and heat-resistant magnesium alloy containing two rare earths and preparation method thereof |
| CN106756680A (en) * | 2016-11-23 | 2017-05-31 | 西北有色金属研究院 | A kind of processing method of high-strength magnesium alloy small-sized bar |
| CN107245619A (en) * | 2017-03-03 | 2017-10-13 | 中南大学 | A kind of strong high temperature resistant magnesium alloy of superelevation |
| CN107022707A (en) * | 2017-03-23 | 2017-08-08 | 中南大学 | A kind of big component Technology for Heating Processing of strong high temperature resistant magnesium alloy of superelevation |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109967525A (en) * | 2019-04-08 | 2019-07-05 | 西安交通大学 | A method of preparing reversed gradient nano structural metallic material |
| CN112575214A (en) * | 2020-11-17 | 2021-03-30 | 哈工大（威海）创新创业园有限责任公司 | Rapid preparation method of gradient reinforced graphene magnesium-based composite material |
| CN113174550A (en) * | 2021-03-12 | 2021-07-27 | 江苏大学 | Preparation method of ultra-high-strength high-toughness nano-gradient twin-crystal magnesium alloy |
| CN113174550B (en) * | 2021-03-12 | 2022-05-20 | 江苏大学 | Preparation method of ultra-high-strength high-toughness nano-gradient twin-crystal magnesium alloy |
| CN113373329A (en) * | 2021-05-17 | 2021-09-10 | 华北理工大学 | Preparation method of nano gradient magnesium alloy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108728710A (en) | A kind of strong nanometer gradient magnesium alloy preparation method of VW93M superelevation | |
| US9624565B2 (en) | Nanocrystal-containing titanium alloy and production method therefor | |
| CN104726746B (en) | High-strength metastable beta-type titanium alloy bar and production method thereof | |
| JP6420553B2 (en) | Aluminum alloy, aluminum alloy wire, aluminum alloy wire manufacturing method, aluminum alloy member manufacturing method, and aluminum alloy member | |
| CN108728713A (en) | A kind of superelevation low rare earth nano gradient magnesium alloy preparation method by force | |
| CN109371344A (en) | The forging technology of GH4169 alloy bar material | |
| CN109248980A (en) | The manufacturing method of GH4169 alloy bar material | |
| CN106890865B (en) | Major diameter AQ80M magnesium alloy cake materials squeeze forging and integrate forming technology | |
| RU2020123933A (en) | PRESSED FORGE BLANK FROM 6XXX SERIES ALUMINUM ALLOY AND METHOD FOR ITS MANUFACTURING | |
| CN112522650A (en) | High-strength high-toughness superfine twin crystal pure titanium and preparation method thereof | |
| JP2013220472A (en) | Al-Cu BASED ALUMINUM ALLOY FORGED OBJECT | |
| CN110512129A (en) | A kind of forging torsion integrated technique preparing superelevation severe deformation magnesium alloy rod | |
| CN103447433A (en) | Preparation method of large-sized magnesium alloy forged disc | |
| CN108728711A (en) | A kind of strong Mg-Gd-Y-Zr nanometer gradients magnesium alloy preparation method of superelevation | |
| CN108774720A (en) | A kind of strong nanometer gradient magnesium alloy preparation method of superelevation | |
| JP7034095B2 (en) | Customized titanium alloy for 3D printing and its manufacturing method | |
| CN114535478A (en) | Rotary die forging preparation method of ultralight high-strength magnesium-lithium alloy | |
| RU2758045C1 (en) | Method for producing billets in the form of a bar from (a+b)-titanium alloys | |
| CN108796330A (en) | A kind of strong Mg-Gd-Y-Zr nanometers of isomery magnesium alloy preparation method of superelevation | |
| KR101414505B1 (en) | The manufacturing method of titanium alloy with high-strength and high-formability and its titanium alloy | |
| CN108728714A (en) | A kind of strong nanometer isomery magnesium alloy preparation method of VW93M superelevation | |
| CN115874093B (en) | 700 MPa-grade Al-Zn-Mg-Cu aluminum alloy extrusion material and preparation method thereof | |
| CN108728780A (en) | A kind of strong nanometer isomery magnesium alloy preparation method of superelevation | |
| CN108754270A (en) | A kind of superelevation low rare earth nano isomery magnesium alloy preparation method by force | |
| CN108728715A (en) | A kind of powerful block nanometer magnesium alloy preparation method of VW93M superelevation |
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 | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20210702 |