CN101418403A - Hot-extrusion and high intensity Mg-Zn-Y-Zr alloy - Google Patents
Hot-extrusion and high intensity Mg-Zn-Y-Zr alloy Download PDFInfo
- Publication number
- CN101418403A CN101418403A CNA2008102264511A CN200810226451A CN101418403A CN 101418403 A CN101418403 A CN 101418403A CN A2008102264511 A CNA2008102264511 A CN A2008102264511A CN 200810226451 A CN200810226451 A CN 200810226451A CN 101418403 A CN101418403 A CN 101418403A
- Authority
- CN
- China
- Prior art keywords
- alloy
- magnesium alloy
- magnesium
- under
- performance
- 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
Images
Abstract
The invention relates to a thermally extruded high-intensity Mg-Zn-Y-Zr alloy, and belongs to the field of magnesium alloy production. The magnesium alloy has a chemical composition in atom percentage: Mg99.5-x (Y0.67Zn0.33) x Zr0.5, wherein x is more than or equal to 7.5 and less than or equal to 12.5. The material is smelted under the protection of a fusing agent, does not need to refine, has low extrusion ratio (lambda=11), and breaks limit of complicated preparation technology and harsh preparation conditions of high-performance magnesium alloy, so that the high-performance magnesium alloy can be directly produced under the prior industrial conditions. Under the condition of ensuring favorable mechanical property, low density and low cost of the alloy are ensured, and the strength of the material is remarkably higher than that of the prior typical wrought magnesium alloy.
Description
Technical field
The invention belongs to magnesium alloy production field in the non-ferrous metal, relate to a series of magnesium alloy with excellent mechanical performances.
Background technology
Enter 21 century, resource and environment have become the matter of utmost importance of human kind sustainable development.Along with the rapid rising of metallic substance consumption and the develop rapidly of science and technology, the appearance of large-scale production process and widely-used, many conventional metals Mineral resources are tending towards exhausted, therefore, quicken Application of Magnesium, have the important strategic meaning keeping social sustainable development.Magnesium alloy has plurality of advantages, is described as " 21 century green engineering material.”
For magnesium alloy use more extensive, China focuses on Mg Alloy Research above the research and development high-strength-toughness magnesium alloy.For now, the magnesium alloy of the preparation means exploitation high intensity and high ductility that employing routinizes can be divided into three levels, the first level target is that development tensile strength surpasses 300MPa, unit elongation can reach the low-cost cast magnesium alloys of 8%～15% high comprehensive performance, is used for civilian industries such as automobile, electronics; Second level then is to develop tensile strength near 400MPa, and unit elongation can reach 6%～10% more high-intensity cast magnesium alloys, fields such as available space flight and aviation and military weapon; The 3rd level is to develop tensile strength at 350～500MPa, and unit elongation can reach 6%～10% high-strength wrought magnesium alloys, can be used for extensive fields more.High-strength magnesium alloy mainly comprises Mg-Al, Mg-Zn and three alloy systems of Mg-RE (RE is a rare earth element).Because the performance of wrought magnesium alloys is much better than the performance of cast magnesium alloys, wrought magnesium alloys can satisfy the service requirements of different occasion structural parts simultaneously, and the consumption of the product amount ratio cast magnesium alloys of wrought magnesium alloys is little, and therefore, the exploitation wrought magnesium alloys is long-range trend.We have enumerated the composition and the performance of present typical variant magnesium alloy materials, and are as shown in table 1.
The composition and the performance of table 1 typical commercial deformed magnesium alloy material
Summary of the invention
The purpose of this invention is to provide the deformed magnesium alloy material that a class has excellent mechanical performances.
A kind of hot-extrusion and high intensity Mg-Zn-Y-Zr alloy, chemical ingredients (atomic percent) is:
Mg
99.5-x(Y
0.67Zn
0.33)
xZr
0.5, 7.5≤X≤12.5 wherein.
At magnesium alloy materials proposed by the invention, have the good mechanical performance, tabulation is implemented in its specific performance and present typical magnesium deformable material contrast.
Advantage of the present invention is:
1, this magnesium alloy materials adopts the flux protection method to smelt; it is also the most extensive the earliest that this kind method is used; have industrial use value, broken the restriction of high-performance magnesium-alloy complicated process of preparation, preparation condition harshness, make existing industrial condition just can direct production go out high-performance magnesium-alloy.
2, do not carrying out refining, low extrusion ratio (λ=11), do not passing through under any heat treated situation, the intensity of this material is apparently higher than the intensity of present typical variant magnesium alloy.
3, this magnesium alloy materials belongs to high magnesium alloy, under the prerequisite that keeps excellent mechanical performances, has guaranteed the low density (ρ=1.87g/cm of alloy
3) and raw-material low cost.
Description of drawings
Fig. 1 is the squeeze of isothermal extruding of wrought magnesium alloys and the relation curve that blank is extruded length.(extruding rate is 1mm/min).X-coordinate is that blank is extruded length; Ordinate zou is a squeeze.
Fig. 2 is the x-ray diffraction pattern of wrought magnesium alloys.X-coordinate is 2 θ angles; Ordinate zou is diffracted intensity (arbitrary unit).
Fig. 3 is Mg
99.5-x(Y
0.67Zn
0.33)
xZr
0.5, wherein the as-cast magnesium alloy of X=10 is organized photo
Fig. 4 is Mg
99.5-x(Y
0.67Zn
0.33)
xZr
0.5, (X=10) the section structure photo of wrought magnesium alloys.
Fig. 5 is Mg
99.5-x(Y
0.67Zn
0.33)
xZr
0.5, (X=10) photo is organized in the side of wrought magnesium alloys.
Fig. 6 is Mg
99.5-x(Y
0.67Zn
0.33)
xZr
0.5, (X=10) tensile stress-strain curve of wrought magnesium alloys.(rate of extension is 6mm/min) X-coordinate is strain; Ordinate zou is a stress.
Fig. 7 is Mg
99.5-x(Y
0.67Zn
0.33)
xZr
0.5, (X=10) the stretching fracture pattern (stereoscan photograph) of wrought magnesium alloys.
Embodiment
Adopting commercially available pure metal Mg, Y, Zn, Zr (purity is higher than 99.5%, weight percent) is parent material, and the composition of embodiment alloy (atomic percent) is respectively Mg
94.5(Y
0.67Zn
0.33)
5Zr
0.5, Mg
92(Y
0.67Zn
0.33)
7.5Zr
0.5, Mg
89.5(Y
0.67Zn
0.33)
10Zr
0.5The arc melting under argon gas atmosphere with Y and Zr at first, each alloy needs melting 5 times, and is even to guarantee the master alloy composition.Prepare 500g respectively according to the one-tenth of determining, wherein, consider that the fusing point of magnesium metal and boiling point have only 648 ℃ and 1090 ℃, illustrate that magnesium volatilizees easily under melting high temperature, so we have taked to add 5% method.Melting equipment is common resistance heading furnace, has good heat insulating, characteristics such as the samming head of district, Temperature-controlled appliance Al-518/518P artificial intelligence controller.Smelting pot adopts plumbago crucible.The flux of smelting process is prepared voluntarily, composition such as table 2.At first, plumbago crucible is incubated 10min down at 200 ℃, purpose is to guarantee the drying of crucible, then prior exsiccant MAG block is put into crucible, adds flux rapidly and covers.Temperature rises to 680 ℃ and be incubated 15min rapidly, after a large amount of magnesium fusings, stirs with the titanium rod, stirs to add flux when finishing and cover, when the magnesium fusing adds (Y, Zr) master alloy fragment rapidly in the back fully, stir, and the adding insulating covering agent, repeatedly several times.Temperature rises to 695 ℃ in 15min subsequently, adds spelter, stirs, and adds insulating covering agent, is raised to 700 ℃ subsequently in the 5min, is raised to 720 ℃ at 10min then, during carry out agitation as appropriate, add insulating covering agent.Be incubated 15min then, leave standstill, in air, be poured in the water cooled copper mould that intracavity diameter is 20mm.Then, intercepted length is the sample of 20mm from the ingot casting, with the specimen surface polishing to remove oxide skin.Homemade mould is adopted in hot extrusion, be squeezed into the sample that diameter is 6mm on the 1000KN MTS material-testing machine being 20mm Mg-Y-Zn-Zr alloy with the initial state diameter under 400 ± 10 ℃ and extruding rate are the condition of 1mm/min, extrusion process adopts the oleic acid+molybdenumdisulphide of own preparation to lubricate.Sample after the plastic working is processed into standard test specimen, is to carry out tension test under the 6mm/min condition in room temperature and rate of extension.We extrude the relation curve of length and combine correlation theory with blank and can know from the squeeze of the isothermal extruding of wrought magnesium alloys, and the intensity of sample is along with X=5,7.5 and 10 constantly increases as Fig. 1.The X-ray diffraction spectrum of example cross section shows that sample mainly contains α-Mg and long-periodic structure Mg
12ZnY (18R structure, way of stacking are ACBCBCBACACACBABAB) and accurate crystalline phase Mg
3YZn
6Fig. 2 is seen in (icosahedral quasicrystal has excellent mechanical properties) three phase composites.Organize photo such as Fig. 3 to find that crystal grain is tiny by observing cast alloy, have eutectic structure to exist, phase composite is consistent with the result of XRD.Find Mg from organize photo Fig. 4, Fig. 5 of wrought magnesium alloys
12The ZnY precipitated phase increases, and crystal grain becomes fibrous distribution along the direction of extrusion.We obtain Mg by tensile stress-strain curve Fig. 6
89.5(Y
0.67Zn
0.33)
10Zr
0.5Tensile strength of alloys has reached 436MPa than higher.Pass through Mg
89.5(Y
0.67Zn
0.33)
10Zr
0.5We obtain Mg the fracture apperance of alloy such as Fig. 7
89.5(Y
0.67Zn
0.33)
10Zr
0.5The fracture mode of alloy is that ductile rupture and two kinds of fracture modes of brittle rupture exist jointly, is fractured into the master with brittle rupture.Prepare flux component voluntarily and list in table 2.Table 3 is the performance of the embodiment of the invention, and by contrasting as can be seen with table 1, this serial magnesium alloy has excellent mechanical property.
Table 2 is prepared flux component voluntarily
Table 3 is the mechanical property of the embodiment of the invention at ambient temperature
Claims (1)
1. hot-extrusion and high intensity Mg-Zn-Y-Zr alloy, the chemical ingredients atomic percent is: Mg
99.5-x(Y
0.67Zn
0.33) xZr
0.5, 7.5≤X≤12.5 wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102264511A CN101418403B (en) | 2008-11-11 | 2008-11-11 | Hot-extrusion and high intensity Mg-Zn-Y-Zr alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102264511A CN101418403B (en) | 2008-11-11 | 2008-11-11 | Hot-extrusion and high intensity Mg-Zn-Y-Zr alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101418403A true CN101418403A (en) | 2009-04-29 |
| CN101418403B CN101418403B (en) | 2010-10-27 |
Family
ID=40629403
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102264511A Expired - Fee Related CN101418403B (en) | 2008-11-11 | 2008-11-11 | Hot-extrusion and high intensity Mg-Zn-Y-Zr alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101418403B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812620A (en) * | 2010-04-30 | 2010-08-25 | 重庆大学 | magnesium-zinc-zirconium-yttrium-magnesium alloy |
| CN102492883A (en) * | 2011-12-28 | 2012-06-13 | 东北大学 | Magnesium alloy possessing extruding characteristic at room temperature and method for preparing extrusion material |
| CN105714132A (en) * | 2014-12-03 | 2016-06-29 | 华东交通大学 | Preparation method for high-damping material containing quasi-crystal and long-periodic structure at same time |
-
2008
- 2008-11-11 CN CN2008102264511A patent/CN101418403B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812620A (en) * | 2010-04-30 | 2010-08-25 | 重庆大学 | magnesium-zinc-zirconium-yttrium-magnesium alloy |
| CN102492883A (en) * | 2011-12-28 | 2012-06-13 | 东北大学 | Magnesium alloy possessing extruding characteristic at room temperature and method for preparing extrusion material |
| CN102492883B (en) * | 2011-12-28 | 2013-11-06 | 东北大学 | Magnesium alloy possessing extruding characteristic at room temperature and method for preparing extrusion material |
| CN105714132A (en) * | 2014-12-03 | 2016-06-29 | 华东交通大学 | Preparation method for high-damping material containing quasi-crystal and long-periodic structure at same time |
| CN105714132B (en) * | 2014-12-03 | 2018-10-23 | 华东交通大学 | A kind of preparation method of high damping material while containing quasi-crystalline substance and long-periodic structure phase |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101418403B (en) | 2010-10-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105755340B (en) | High strength and low cost high-ductility high heat conduction wrought magnesium alloy and preparation method thereof | |
| CN105779834B (en) | A kind of antifatigue fire retardant wrought magnesium alloy of low-cost high-strength and preparation method thereof | |
| AU2017239455B2 (en) | Lightweight, high-conductivity, heat-resistant, iron-containing aluminum wire and preparation process therefor | |
| WO2018103632A1 (en) | Mg-gd-y-zn-zr alloy with high strength and toughness, corrosion resistance and anti-flammability and process for preparing the same | |
| CN104046867B (en) | High-plasticity heat-conducting magnesium alloy and preparation method thereof | |
| CN103498086B (en) | A kind of high-strength high-toughness magnesium alloy and preparation technology thereof | |
| CN104032195B (en) | Efficiently-extrudable low-cost high-performance heat-conducting magnesium alloy and preparation method thereof | |
| CN109182860A (en) | A kind of magnesium alloy with high strength and ductility and preparation method | |
| CN102230118A (en) | Magnesium alloy of high intensity and high yield ratio and preparation method thereof | |
| CN101407879A (en) | Yb-containing deformation magnesium alloy and dynamic precipitation strengthening-toughening preparation thereof | |
| CN105132772A (en) | Low-cost non-rare-earth type high-strength magnesium alloy and preparing method thereof | |
| CN102392165A (en) | Wrought magnesium alloy with high intensity and method for preparing its extruded material | |
| CN108385007A (en) | A kind of high performance heat resistant deformed magnesium alloy material of low cost and preparation method thereof | |
| CN105671390B (en) | A kind of heat-resistant deforming magnesium alloy of calcic and neodymium and preparation method thereof | |
| CN103290285B (en) | Magnesium-zinc-manganese-tin-yttrium alloy and preparation method of same | |
| CN103924142A (en) | Magnesium alloy and preparing method thereof | |
| CN103305738A (en) | Silicon-containing heat-resistant rare earth magnesium alloy and preparation method thereof | |
| Li et al. | Hot deformation behavior of Mg95. 21Zn1. 44Y2. 86Mn0. 49 alloy containing LPSO phase | |
| Yang et al. | As-cast microstructures and mechanical properties of Mg–4Zn–xY–1Ca (x= 1.0, 1.5, 2.0, 3.0) magnesium alloys | |
| CN113774262B (en) | High-strength magnesium alloy wire and preparation method thereof | |
| Li et al. | Microstructure evolution, mechanical properties and creep mechanisms of Mg-12Gd-1MM-0.6 Zr (wt%) magnesium alloy | |
| CN101418403B (en) | Hot-extrusion and high intensity Mg-Zn-Y-Zr alloy | |
| CN1904106A (en) | Fine crystal deformation magnesium alloy containing rare earth Y | |
| CN103225031B (en) | A kind of Magnesium-zinc-mangaalloytin-neodymium alloytin-neodymium and preparation method thereof | |
| CN110343924A (en) | A kind of high conductivity Mg-Zn-Sn-Sc-xCa magnesium alloy and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20101027 Termination date: 20191111 |