CN113388767A - High-performance magnesium alloy material and preparation method thereof - Google Patents
High-performance magnesium alloy material and preparation method thereof Download PDFInfo
- Publication number
- CN113388767A CN113388767A CN202110876962.3A CN202110876962A CN113388767A CN 113388767 A CN113388767 A CN 113388767A CN 202110876962 A CN202110876962 A CN 202110876962A CN 113388767 A CN113388767 A CN 113388767A
- Authority
- CN
- China
- Prior art keywords
- alloy material
- magnesium alloy
- temperature
- ingot
- material according
- 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
- 239000000956 alloy Substances 0.000 title claims abstract description 43
- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 13
- 239000011777 magnesium Substances 0.000 claims abstract description 13
- 238000010438 heat treatment Methods 0.000 claims description 31
- 238000005266 casting Methods 0.000 claims description 18
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 238000001125 extrusion Methods 0.000 claims description 14
- 238000003723 Smelting Methods 0.000 claims description 11
- 235000012438 extruded product Nutrition 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000000137 annealing Methods 0.000 claims description 8
- 238000000265 homogenisation Methods 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000010791 quenching Methods 0.000 claims description 5
- 230000000171 quenching effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000004615 ingredient Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004321 preservation Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 4
- 239000000243 solution Substances 0.000 description 7
- 238000005728 strengthening Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 239000007769 metal material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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
- 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
- C22F1/002—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working by rapid cooling or quenching; cooling agents used therefor
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/06—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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Extrusion Of Metal (AREA)
Abstract
The invention relates to a high-performance magnesium alloy material and a preparation method thereof, wherein the magnesium alloy material comprises the following components in percentage by mass: zn element: 4.0% -7%, Zr element: 0.4% -1.2%, Nd element: 1% -2%, Y element: 0.5 to 2 percent of magnesium and the balance of magnesium. The magnesium alloy material has high mechanical property and the lowest tensile strength of 260 MPa.
Description
Technical Field
The invention relates to the field of alloy materials, in particular to a high-performance magnesium alloy material and a preparation method thereof.
Background
The lightest of the metal materials in practical use at present is magnesium alloy which is known as 'green engineering material in 21 st century'. The magnesium alloy has the advantages of high specific strength, large elastic modulus, good heat dissipation, good shock absorption, strong impact load bearing capacity and the like. The magnesium alloy can replace plastic, aluminum alloy and steel parts in certain specific environments, and is one of indispensable metal materials in the fields of transportation industry, aerospace, communication electronics and the like. However, magnesium alloys have poor room temperature plasticity and low strength, which limits their applications to some extent. Therefore, the research and preparation of the high-strength magnesium alloy are very important. At present, the strengthening process of the high-strength magnesium alloy comprises large plastic deformation, alloy strengthening, heat treatment and the like.
Disclosure of Invention
The invention provides a high-performance magnesium alloy material and a preparation method thereof, aiming at solving the technical problems in the background technology, wherein the high-performance magnesium alloy material has higher mechanical property and the lowest tensile strength of 260 MPa.
The technical solution of the invention is as follows: the invention relates to a high-performance magnesium alloy material, which is characterized in that: the magnesium alloy material comprises the following components in percentage by mass: zn element: 4.0% -7%, Zr element: 0.4% -1.2%, Nd element: 1% -2%, Y element: 0.5 to 2 percent of magnesium and the balance of magnesium.
Further, the element Y is Mg-Y master alloy.
Furthermore, the Nd element is Mg-Nd intermediate alloy.
Further, Zr element is Mg-Zr intermediate alloy.
Further, Zn element is pure element.
The method for preparing the high-performance magnesium alloy material is characterized by comprising the following steps of: the preparation method comprises the following steps:
1) alloy ingredients, namely, mixing the ingredients according to a mixing ratio and then smelting the mixture into an ingot, wherein smelting equipment is a medium-frequency smelting furnace, and the alloy ingot contains Zn elements: 4.0% -7%, Zr element: 0.4% -1.2%, Nd element: 1% -2%, Y element: 0.5 to 2 percent of magnesium element and the balance of magnesium element;
2) ingot casting and annealing: homogenizing the cast ingot: homogenization temperature: 280-350 ℃ for: 8 h; water quenching;
3) and (4) extruding.
Further, the smelting process in the step 1) is as follows: introducing protective gas into the furnace: SF6+CO2The SF6 volume ratio is: 0.05-1% and the balance of CO2Preheating with heating power of 10-20kwAfter 10-25 minutes, heating with the heating power of 15-35kw until the solution is completely melted, then preserving the heat for 20-40 minutes at the heating power of 30-35kw, then cooling with the heating power of 10-20kw for 15-30 minutes until the casting temperature is reached, and the casting temperature is as follows: 670-730 ℃, and then casting.
Further, the specific steps of 3) extruding in the step are as follows:
heating time of the cast ingot: d/1.2 mm/min (D is ingot diameter in mm);
heating temperature of cast ingot: 260 ℃ to 300 ℃;
temperature of the extrusion die: 280 ℃ and 320 ℃;
extrusion ratio: 15-40.
Further, the step 3) is followed by the step 4) of aging treatment of the extruded product: aging treatment temperature of the extruded product: 150 ℃ and 210 ℃, and the heat preservation time is as follows: 8-12 hours.
The invention has the beneficial effects that:
1) adding 1-2% of Nd element into the alloy to enhance the solid solution strengthening effect and the fine crystal strengthening effect of the alloy;
2) 0.5-2% of Y element is added into the alloy to enhance the oxidation resistance of the alloy;
Detailed Description
The present invention will be described in further detail with reference to specific examples below:
example 1
The high-performance magnesium alloy material comprises the following components in percentage by mass: magnesium element: the balance, Zn element: 4.3%, Zr element: 0.6%, Nd element: 1.3%, Y element: 0.7 percent.
The preparation method comprises the following steps:
1) the raw materials are mixed according to the mixing proportion and then are smelted into ingots, and the smelting process is as follows: introducing protective gas into the furnace: SF6+CO2The SF6 volume ratio is: 0.7% and the balance of CO2After the heating power of 15kw is preheated for 13 minutes, the heating power of 25kw is heated until the solution is completely melted, then the solution is kept warm for 25 minutes at the heating power of 30kw, and then the temperature is reduced by 12kw for 15 minutes to the casting temperature, and the casting temperature is as follows: 690 ℃, and then pouring;
2) ingot casting and annealing:
homogenizing the cast ingot: homogenization temperature: 290 ℃, time: 8 h; water quenching;
3) extruding:
heating time and temperature of ingot casting: heating the ingot with the diameter of 360mm at 300 ℃, and keeping the temperature for 330min after reaching the temperature;
temperature of the extrusion die: 320 ℃;
the extrusion ratio in the extrusion process is 20;
4) aging treatment:
the extruded product is kept at 180 ℃ for 10 hours.
Performance data (room temperature elongation) of the obtained high-performance magnesium alloy material:
| status of state | Tensile strength/MPa | Yield strength/MPa | Elongation/percent |
| The ingot is not annealed | 389 | 337 | 5 |
| Annealing of ingot | 346 | 296 | 7 |
| Extruded product | 479 | 420 | 10 |
| Homogenization treatment | 538 | 439 | 12 |
Example 2
The high-performance magnesium alloy material comprises the following components in percentage by mass: magnesium element: the balance, Zn element: 5.5%, Zr element: 0.8%, Nd element: 1.6%, Y element: 1.2 percent.
The preparation method comprises the following steps:
1) the raw materials are mixed according to the mixing proportion and then are smelted into ingots, and the smelting process is as follows: introducing protective gas into the furnace: SF6+CO2The SF6 volume ratio is: 0.9% and the balance of CO2After preheating for 15 minutes at 18w of heating power, heating for 30kw until the solution is completely melted, then preserving heat for 28 minutes at 32kw of heating power, then cooling for 20 minutes at 13kw of heating power to the casting temperature, and the casting temperature: at 695 ℃, and then pouring;
2) ingot casting and annealing:
homogenizing the cast ingot: homogenization temperature: 300 ℃, time: 8 h; water quenching;
3) extruding:
heating time and temperature of ingot casting: heating the ingot with the diameter of 360mm at 280 ℃, and keeping the temperature for 330min after reaching the temperature;
temperature of the extrusion die: 300 ℃;
the extrusion ratio in the extrusion process is 25;
4) aging treatment:
the extruded product was incubated at 200 ℃ for 9 hours.
Performance data (room temperature elongation) of the obtained high-performance magnesium alloy material:
| status of state | Tensile strength/MPa | Yield strength/MPa | Elongation/percent |
| The ingot is not annealed | 402 | 375 | 6 |
| Annealing of ingot | 376 | 332 | 9 |
| Extruded product | 449 | 438 | 11 |
| Homogenization treatment | 547 | 456 | 13 |
Example 3
The high-performance magnesium alloy material comprises the following components in percentage by mass: magnesium element: the balance, Zn element: 6.5%, Zr element: 1.1%, Nd element: 1.8%, Y element: 1.6 percent.
The preparation method comprises the following steps:
1) the raw materials are mixed according to the mixing proportion and then are smelted into ingots, and the smelting process is as follows: introducing protective gas into the furnace: SF6+CO2The SF6 volume ratio is: 0.3% and the balance of CO2After the heating power of 20kw is preheated for 12 minutes, the heating power of 20kw is heated until the solution is completely melted, then the solution is kept warm for 30 minutes at the heating power of 35kw, and then the temperature is reduced by the heating power of 20kw for 15 minutes until the pouring temperature is reached, and the pouring temperature is: 705 ℃, and then pouring;
2) ingot casting and annealing:
homogenizing the cast ingot: homogenization temperature: 320 ℃, time: 8 h; water quenching;
3) extruding:
heating time and temperature of ingot casting: heating the ingot with the diameter of 360mm at 300 ℃, and keeping the temperature for 330min after reaching the temperature;
temperature of the extrusion die: 290 ℃;
the extrusion ratio in the extrusion process is 30;
4) aging treatment:
the extruded product is kept at 160 ℃ for 12 hours.
Performance data (room temperature elongation) of the obtained high-performance magnesium alloy material:
| status of state | Tensile strength/MPa | Yield strength/MPa | Elongation/percent |
| The ingot is not annealed | 412 | 398 | 7 |
| Annealing of ingot | 391 | 345 | 10 |
| Extruded product | 476 | 428 | 13 |
| Homogenization treatment | 557 | 476 | 12 |
The present invention and the technical contents not specifically described in the above embodiments are the same as the prior art.
The present invention is not limited to the above-described embodiments, and the present invention can be implemented with the above-described advantageous effects.
The above embodiments are only specific embodiments disclosed in the present invention, but the scope of the present invention is not limited thereto, and the scope of the present invention disclosed in the present invention should be subject to the scope of the claims.
Claims (9)
1. A high-performance magnesium alloy material is characterized in that: the magnesium alloy material comprises the following components in percentage by mass: zn element: 4.0% -7%, Zr element: 0.4% -1.2%, Nd element: 1% -2%, Y element: 0.5 to 2 percent of magnesium and the balance of magnesium.
2. The high-performance magnesium alloy material according to claim 1, characterized in that: the Y element is Mg-Y intermediate alloy.
3. The high-performance magnesium alloy material according to claim 1, characterized in that: the Nd element is Mg-Nd intermediate alloy.
4. The high-performance magnesium alloy material according to claim 1, characterized in that: the Zr element is Mg-Zr intermediate alloy.
5. The high-performance magnesium alloy material according to claim 1, characterized in that: the Zn element is a pure element.
6. A method for producing the high-performance magnesium alloy material according to claim 1, characterized by comprising: the preparation method comprises the following steps:
1) alloy ingredients, namely, mixing the ingredients according to a mixing ratio and then smelting the mixture into an ingot, wherein smelting equipment is a medium-frequency smelting furnace, and the alloy ingot contains Zn elements: 4.0% -7%, Zr element: 0.4% -1.2%, Nd element: 1% -2%, Y element: 0.5 to 2 percent of magnesium element and the balance of magnesium element;
2) ingot casting and annealing: homogenizing the cast ingot: homogenization temperature: 280-350 ℃ for: 8 h; water quenching;
3) and (4) extruding.
7. The method for producing a high-performance magnesium alloy material according to claim 6, characterized in that: the smelting process in the step 1) is as follows: introducing protective gas into the furnace: SF6+CO2The SF6 volume ratio is: 0.05-1% and the balance of CO2Preheating for 10-25 minutes at a heating power of 10-20kw, heating for 15-35kw until the solution is completely melted, then preserving heat for 20-40 minutes at a heating power of 30-35kw, cooling for 15-30 minutes at a heating power of 10-20kw until the casting temperature is reached, wherein the casting temperature is as follows: 670-730 ℃, and then casting.
8. The method for producing a high-performance magnesium alloy material according to claim 7, characterized in that: the extrusion in step 3) comprises the following specific steps:
heating time of the cast ingot: d/1.2 mm/min (D is ingot diameter in mm);
heating temperature of cast ingot: 260 ℃ to 300 ℃;
temperature of the extrusion die: 280 ℃ and 320 ℃;
extrusion ratio: 15-40.
9. The method for producing a high-performance magnesium alloy material according to claim 8, characterized in that: the step 3) is followed by a step 4) of aging the extruded product: aging treatment temperature of the extruded product: 150 ℃ and 210 ℃, and the heat preservation time is as follows: 8-12 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110876962.3A CN113388767A (en) | 2021-08-02 | 2021-08-02 | High-performance magnesium alloy material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110876962.3A CN113388767A (en) | 2021-08-02 | 2021-08-02 | High-performance magnesium alloy material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113388767A true CN113388767A (en) | 2021-09-14 |
Family
ID=77622556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110876962.3A Pending CN113388767A (en) | 2021-08-02 | 2021-08-02 | High-performance magnesium alloy material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113388767A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587430A (en) * | 2004-08-12 | 2005-03-02 | 上海交通大学 | Deformed magnesium alloy and its casting and deforming processing process |
| CN101200784A (en) * | 2007-12-17 | 2008-06-18 | 中国科学院长春应用化学研究所 | Magnesium-zinc-lanthanon-zirconium magnesium alloy and method for preparing same |
| CN102296221A (en) * | 2011-09-22 | 2011-12-28 | 中南大学 | High-ductility high-yield-strength magnesium alloy |
| CN102392165A (en) * | 2011-12-28 | 2012-03-28 | 东北大学 | Wrought magnesium alloy with high intensity and method for preparing its extruded material |
| CN102433478A (en) * | 2011-12-28 | 2012-05-02 | 东北大学 | Magnesium alloy with good millability and preparation method of magnesium alloy plate |
| CN103526091A (en) * | 2013-09-15 | 2014-01-22 | 郑州大学 | Biodegradable medical magnesium alloy as well as preparation method thereof |
| CN104099507A (en) * | 2014-07-14 | 2014-10-15 | 沈阳工业大学 | High-strength and high-toughness rare earth magnesium alloy |
| CN104451316A (en) * | 2014-12-30 | 2015-03-25 | 淄博宏泰防腐有限公司 | Magnesium alloy material for high-plasticity forging and pressing and preparation method thereof |
| CN105483484A (en) * | 2016-02-04 | 2016-04-13 | 哈尔滨工业大学（威海） | Method for preparing isotropic high-strength wrought magnesium alloy |
| CN106834849A (en) * | 2016-12-22 | 2017-06-13 | 湘潭大学 | High strength heat resistant magnesium-rare earth |
| CN109022984A (en) * | 2018-09-25 | 2018-12-18 | 中国科学院海洋研究所 | A kind of corrosion-proof rare earth magnesium alloy of the element containing Zn and preparation method thereof |
| CN111378882A (en) * | 2018-12-29 | 2020-07-07 | 嘉丰工业科技（惠州）有限公司 | High-heat-conductivity die-casting magnesium alloy material and preparation method thereof |
| CN112458349A (en) * | 2020-11-06 | 2021-03-09 | 重庆大学 | Low-rare earth high-strength wrought magnesium alloy containing neodymium and yttrium and preparation method thereof |
-
2021
- 2021-08-02 CN CN202110876962.3A patent/CN113388767A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1587430A (en) * | 2004-08-12 | 2005-03-02 | 上海交通大学 | Deformed magnesium alloy and its casting and deforming processing process |
| CN101200784A (en) * | 2007-12-17 | 2008-06-18 | 中国科学院长春应用化学研究所 | Magnesium-zinc-lanthanon-zirconium magnesium alloy and method for preparing same |
| CN102296221A (en) * | 2011-09-22 | 2011-12-28 | 中南大学 | High-ductility high-yield-strength magnesium alloy |
| CN102392165A (en) * | 2011-12-28 | 2012-03-28 | 东北大学 | Wrought magnesium alloy with high intensity and method for preparing its extruded material |
| CN102433478A (en) * | 2011-12-28 | 2012-05-02 | 东北大学 | Magnesium alloy with good millability and preparation method of magnesium alloy plate |
| CN103526091A (en) * | 2013-09-15 | 2014-01-22 | 郑州大学 | Biodegradable medical magnesium alloy as well as preparation method thereof |
| CN104099507A (en) * | 2014-07-14 | 2014-10-15 | 沈阳工业大学 | High-strength and high-toughness rare earth magnesium alloy |
| CN104451316A (en) * | 2014-12-30 | 2015-03-25 | 淄博宏泰防腐有限公司 | Magnesium alloy material for high-plasticity forging and pressing and preparation method thereof |
| CN105483484A (en) * | 2016-02-04 | 2016-04-13 | 哈尔滨工业大学（威海） | Method for preparing isotropic high-strength wrought magnesium alloy |
| CN106834849A (en) * | 2016-12-22 | 2017-06-13 | 湘潭大学 | High strength heat resistant magnesium-rare earth |
| CN109022984A (en) * | 2018-09-25 | 2018-12-18 | 中国科学院海洋研究所 | A kind of corrosion-proof rare earth magnesium alloy of the element containing Zn and preparation method thereof |
| CN111378882A (en) * | 2018-12-29 | 2020-07-07 | 嘉丰工业科技（惠州）有限公司 | High-heat-conductivity die-casting magnesium alloy material and preparation method thereof |
| CN112458349A (en) * | 2020-11-06 | 2021-03-09 | 重庆大学 | Low-rare earth high-strength wrought magnesium alloy containing neodymium and yttrium and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110396629B (en) | 800 MPa-grade aluminum alloy extruded section and preparation method thereof | |
| US9828662B2 (en) | Low cost and high strength titanium alloy and heat treatment process | |
| CN103667825B (en) | A kind of ultra-high-strength/tenacity anticorodal and manufacture method thereof | |
| CN110066931B (en) | Aluminum alloy suitable for cold forming and preparation method thereof | |
| WO2022041268A1 (en) | High-strength al-cu-mg-mn aluminum alloy and preparation method therefor | |
| CN101509091A (en) | High-strength high-ductility Al-Zn-Mg-Cu-Sr alloy and production method | |
| CN101698916A (en) | Novel high-strength/tenacity aluminum alloy and preparation method thereof | |
| CN108998711B (en) | High-strength-toughness deformed magnesium-lithium alloy and preparation method thereof | |
| CN109182809B (en) | Low-cost high-toughness wrought magnesium alloy and preparation method thereof | |
| CN114086040B (en) | Aluminum-magnesium-silicon-scandium-zirconium alloy and preparation method thereof | |
| CN108707790B (en) | High-strength cast aluminum alloy | |
| CN113444944B (en) | Low-cost high-strength high-ductility rare earth magnesium alloy and preparation method thereof | |
| CN111411276A (en) | Preparation method of high-strength high-thermal-stability magnesium-lithium alloy | |
| CN105568105A (en) | High-strength high-plasticity Mg-Gd-Y-Ni-Mn alloy and preparing method thereof | |
| CN113481416A (en) | High-performance Al-Zn-Mg-Cu alloy | |
| CN114480933B (en) | Ultra-high-strength aluminum alloy and preparation method and application thereof | |
| CN108754257A (en) | A kind of high-strength/tenacity aluminum alloy forging and preparation method thereof | |
| CN113862533B (en) | Aluminum alloy and preparation method thereof | |
| CN111057924A (en) | High-plasticity low-rare earth magnesium alloy and preparation method thereof | |
| CN110760726A (en) | Aluminum alloy forging and method for improving uniformity of aluminum alloy forging | |
| CN113403508A (en) | Heat treatment process for spray-formed high-silicon wear-resistant aluminum alloy | |
| CN113388764A (en) | High-strength 7-series aluminum alloy for automobile anti-collision beam and automobile anti-collision beam | |
| CN112813319A (en) | Preparation method of aluminum alloy wire for manufacturing ultrahigh-strength rivet | |
| CN109097648B (en) | Mg-Al-Ca-Ce magnesium alloy and preparation method thereof | |
| CN113388767A (en) | High-performance magnesium alloy material 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: 20210914 |
|
| RJ01 | Rejection of invention patent application after publication |