CN104561712A - Creep-resistant magnesium alloy as well as preparation method and application thereof - Google Patents
Creep-resistant magnesium alloy as well as preparation method and application thereof Download PDFInfo
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- CN104561712A CN104561712A CN201410777474.7A CN201410777474A CN104561712A CN 104561712 A CN104561712 A CN 104561712A CN 201410777474 A CN201410777474 A CN 201410777474A CN 104561712 A CN104561712 A CN 104561712A
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- magnesium alloy
- weight
- magnesium
- thorium
- yttrium
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 238000003723 Smelting Methods 0.000 claims abstract description 32
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 28
- 239000011777 magnesium Substances 0.000 claims abstract description 28
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 claims abstract description 27
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052776 Thorium Inorganic materials 0.000 claims abstract description 27
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 27
- 239000011575 calcium Substances 0.000 claims abstract description 27
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 27
- 239000010703 silicon Substances 0.000 claims abstract description 27
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 27
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract description 27
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 238000004512 die casting Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 2
- 238000010309 melting process Methods 0.000 claims 1
- 239000000956 alloy Substances 0.000 abstract description 9
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000000465 moulding Methods 0.000 abstract 2
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 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
- C22C23/02—Alloys based on magnesium with aluminium as the next major constituent
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- 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
- C22C23/00—Alloys based on magnesium
- C22C23/06—Alloys based on magnesium with a rare earth metal as the next major constituent
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a creep-resistant magnesium alloy as well as a preparation method and an application thereof. The preparation method comprises the following steps: mixing the following components in parts by weight measured by 100 parts of the magnesium: 100 parts of the magnesium, 0.2-2 parts of calcium, 1-8 parts of aluminum, 0.01-0.3 part of silicon, 0.01-1 part of thorium and 0.1-0.5 part of yttrium, smelting and carrying out die-cast molding. According to the design, by mixing and smelting magnesium, calcium, aluminum, silicon, thorium and yttrium at a certain ratio and carrying out die-cast molding, the prepared magnesium alloy material has good creep resistance, so that the application range of the prepared magnesium alloy material is greatly increased and the service life of a product produced by the magnesium alloy material is prolonged to a certain extent.
Description
Technical Field
The invention relates to the field of preparation of magnesium alloy, in particular to creep-resistant magnesium alloy and a preparation method and application thereof.
Background
The magnesium alloy product is widely applied in daily production and life, and the using environment is various, for example, the magnesium alloy product is often used in a high-temperature environment, and under the environment conditions, materials such as the magnesium alloy and the like are prone to creep, so that the magnesium alloy product is prone to deformation and the like, and the service life of the magnesium alloy product is greatly shortened.
Therefore, the present invention provides a creep-resistant magnesium alloy with good creep resistance and greatly expanded application range and a preparation method thereof, which are problems to be solved by the present invention.
Disclosure of Invention
Aiming at the prior art, the invention aims to solve the problems of poor creep resistance and easy deformation of magnesium alloy products in the prior art, thereby providing the creep-resistant magnesium alloy with good creep resistance and greatly enlarging the application range and the preparation method thereof.
In order to achieve the above object, the present invention provides a method for preparing a creep-resistant magnesium alloy, wherein the method comprises: mixing magnesium, calcium, aluminum, silicon, thorium and yttrium, smelting, and die-casting; wherein,
the calcium is used in an amount of 0.2 to 2 parts by weight, the aluminum is used in an amount of 1 to 8 parts by weight, the silicon is used in an amount of 0.01 to 0.3 part by weight, the thorium is used in an amount of 0.01 to 1 part by weight, and the yttrium is used in an amount of 0.1 to 0.5 part by weight, relative to 100 parts by weight of the magnesium.
The invention also provides a creep-resistant magnesium alloy prepared by the preparation method.
The invention also provides an application of the creep-resistant magnesium alloy.
According to the technical scheme, magnesium, calcium, aluminum, silicon, thorium and yttrium are mixed according to a certain proportion, are smelted, and are subjected to die-casting forming after smelting, so that the prepared magnesium alloy material has good creep resistance, the application range of the prepared magnesium alloy material is greatly increased, and the service life of a product prepared from the magnesium alloy is prolonged to a certain extent.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Detailed Description
The following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
The invention provides a preparation method of a creep-resistant magnesium alloy, wherein the preparation method comprises the following steps: mixing magnesium, calcium, aluminum, silicon, thorium and yttrium, smelting, and die-casting; wherein,
the calcium is used in an amount of 0.2 to 2 parts by weight, the aluminum is used in an amount of 1 to 8 parts by weight, the silicon is used in an amount of 0.01 to 0.3 part by weight, the thorium is used in an amount of 0.01 to 1 part by weight, and the yttrium is used in an amount of 0.1 to 0.5 part by weight, relative to 100 parts by weight of the magnesium.
According to the design, magnesium, calcium, aluminum, silicon, thorium and yttrium are mixed according to a certain proportion, are smelted, and are subjected to die-casting forming after smelting, so that the prepared magnesium alloy material has good creep resistance, the application range of the prepared magnesium alloy material is greatly increased, and the service life of a product prepared from the magnesium alloy is prolonged to a certain extent.
In order to obtain a magnesium alloy material having better creep resistance, in a preferred embodiment of the present invention, the calcium is used in an amount of 0.5 to 1 part by weight, the aluminum is used in an amount of 3 to 7 parts by weight, the silicon is used in an amount of 0.05 to 0.2 part by weight, the thorium is used in an amount of 0.1 to 0.5 part by weight, and the yttrium is used in an amount of 0.2 to 0.4 part by weight, relative to 100 parts by weight of the magnesium.
In order to make the raw materials more homogeneously mixable during the mixing process, in a more preferred embodiment of the invention, the magnesium, the calcium, the aluminium, the silicon, the thorium and the yttrium are each independently powders having a particle size of not more than 0.5 mm.
The magnesium, the calcium, the aluminum, the silicon, the thorium and the yttrium can be products which are conventionally used in the field, and certainly, in the invention, in order to ensure that the effect of the prepared magnesium alloy material is better, in a preferred embodiment of the invention, the content of magnesium in the magnesium is not lower than 99%; the content of calcium in the calcium is not lower than 99 percent; the content of aluminum in the aluminum is not lower than 99 percent; the content of silicon in the silicon is not lower than 99 percent; the content of thorium in the thorium is not lower than 99%; the content of yttrium in the yttrium is not less than 99%.
The smelting process can be carried out according to a smelting mode conventionally used in the field, as long as the raw materials are all molten, the smelting temperature is not further limited, and certainly, in order to ensure that the melting effect is better, in a preferred embodiment of the invention, the smelting temperature in the smelting process is not lower than 700 ℃.
In order to ensure better smelting effect and save smelting cost as much as possible, in a more preferred embodiment of the invention, the smelting temperature can be further set to 800-900 ℃.
In order to avoid the formation of new impurities during the smelting process, in a preferred embodiment of the invention, the smelting process further comprises the introduction of a protective gas. The shielding gas may be of the type conventionally used in the art, and may be, for example, an inert gas, although, in order to be as cost effective as possible, in a more preferred embodiment of the invention, the shielding gas is nitrogen.
The invention also provides a creep-resistant magnesium alloy prepared by the preparation method.
The invention also provides an application of the creep-resistant magnesium alloy.
The present invention will be described in detail below by way of examples. In the following examples, the magnesium, calcium, aluminum, silicon, thorium and yttrium were conventional commercial products having a purity of 99% and a particle size of 0.5 mm.
Example 1
100g of magnesium, 0.5g of calcium, 3g of aluminum, 0.05g of silicon, 0.1g of thorium and 0.2g of yttrium are mixed, placed in a smelting furnace with the temperature of 800 ℃ and the nitrogen protection gas is introduced for smelting and die-casting forming, and the creep-resistant magnesium alloy A1 is obtained.
Example 2
100g of magnesium, 1g of calcium, 7g of aluminum, 0.2g of silicon, 0.5g of thorium and 0.4g of yttrium are mixed, placed in a smelting furnace with the temperature of 900 ℃ and the nitrogen protection gas is introduced for smelting and die-casting forming, and the creep-resistant magnesium alloy A2 is obtained.
Example 3
100g of magnesium, 0.8g of calcium, 5g of aluminum, 0.1g of silicon, 0.3g of thorium and 0.3g of yttrium are mixed, placed in a smelting furnace with the temperature of 850 ℃ and the nitrogen protection gas is introduced for smelting and die-casting forming, and the creep-resistant magnesium alloy A3 is obtained.
Example 4
100g of magnesium, 0.2g of calcium, 1g of aluminum, 0.01g of silicon, 0.01g of thorium and 0.1g of yttrium are mixed, placed in a smelting furnace with the temperature of 800 ℃ and the nitrogen protection gas is introduced for smelting and die-casting forming, and the creep-resistant magnesium alloy A4 is obtained.
Example 5
100g of magnesium, 2g of calcium, 8g of aluminum, 0.3g of silicon, 1g of thorium and 0.5g of yttrium are mixed, placed in a smelting furnace with the temperature of 900 ℃ and the nitrogen protection gas is introduced for smelting and die-casting forming, and the creep-resistant magnesium alloy A5 is obtained.
Comparative example 1
100g of magnesium, 0.1g of calcium, 0.1g of aluminum, 0.005g of silicon, 0.005g of thorium and 0.05g of yttrium are mixed, placed in a smelting furnace with the temperature of 850 ℃ and the nitrogen protection gas is introduced for smelting and die-casting forming, and the creep-resistant magnesium alloy D1 is obtained.
Comparative example 2
100g of magnesium, 5g of calcium, 10g of aluminum, 1g of silicon, 2g of thorium and 1g of yttrium are mixed, placed in a smelting furnace with the temperature of 850 ℃ and the nitrogen protection gas is introduced for smelting and die-casting forming, and the creep-resistant magnesium alloy D2 is obtained.
Comparative example 3
A commercially available magnesium alloy D3 manufactured by Shanghai Hensheng metals Co., Ltd under the trade designation AZ 91D.
Test example
The above A1-A5 and D1-D3 were examined for ultimate tensile strength (X1) and elongation (Y1) at ordinary temperature and ultimate tensile strength (X2) and elongation (Y2) at 100 ℃ in accordance with GB1499.1 and GB1499.2, and the results are shown in Table 1.
TABLE 1
| Numbering | X1(MPa) | Y1(％) | X2(MPa) | Y2(％) |
| A1 | 325 | 35.6 | 305 | 33.6 |
| A2 | 312 | 33.2 | 302 | 32.5 |
| A3 | 326 | 33.5 | 301 | 32.6 |
| A4 | 265 | 25.2 | 241 | 23.2 |
| A5 | 253 | 24.5 | 235 | 24.3 |
| D1 | 105 | 10.2 | 76 | 9.5 |
| D2 | 92 | 13.6 | 65 | 11.2 |
| D3 | 205 | 22.5 | 126 | 12.5 |
As can be seen from Table 1, the magnesium alloy produced within the scope of the present invention has less changes in ultimate tensile strength and elongation at room temperature and 100 ℃, better tensile resistance at high temperature and better creep resistance than conventional commercial products, and thus has better service performance, but the product produced outside the scope of the present invention does not have the good service performance.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. A preparation method of creep-resistant magnesium alloy is characterized by comprising the following steps: mixing magnesium, calcium, aluminum, silicon, thorium and yttrium, smelting, and die-casting; wherein,
the calcium is used in an amount of 0.2 to 2 parts by weight, the aluminum is used in an amount of 1 to 8 parts by weight, the silicon is used in an amount of 0.01 to 0.3 part by weight, the thorium is used in an amount of 0.01 to 1 part by weight, and the yttrium is used in an amount of 0.1 to 0.5 part by weight, relative to 100 parts by weight of the magnesium.
2. The production method according to claim 1, wherein the calcium is used in an amount of 0.5 to 1 part by weight, the aluminum is used in an amount of 3 to 7 parts by weight, the silicon is used in an amount of 0.05 to 0.2 part by weight, the thorium is used in an amount of 0.1 to 0.5 part by weight, and the yttrium is used in an amount of 0.2 to 0.4 part by weight, relative to 100 parts by weight of the magnesium.
3. The production method according to claim 1 or 2, wherein the magnesium, the calcium, the aluminum, the silicon, the thorium and the yttrium are each independently a powder having a particle size of not more than 0.5 mm.
4. The production method according to claim 1 or 2, wherein the magnesium content in the magnesium is not less than 99%;
the content of calcium in the calcium is not lower than 99 percent;
the content of aluminum in the aluminum is not lower than 99 percent;
the content of silicon in the silicon is not lower than 99 percent;
the content of thorium in the thorium is not lower than 99%;
the content of yttrium in the yttrium is not less than 99%.
5. The production method according to claim 1 or 2, wherein the melting temperature of the melting process is not lower than 700 ℃.
6. The production method according to claim 5, wherein the melting temperature is 800-900 ℃.
7. The method of claim 5 or 6, wherein the smelting process further comprises passing a shielding gas.
8. The production method according to claim 7, wherein the shielding gas is nitrogen.
9. A creep-resistant magnesium alloy produced by the production method according to any one of claims 1 to 8.
10. Use of the creep-resistant magnesium alloy according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777474.7A CN104561712A (en) | 2014-12-15 | 2014-12-15 | Creep-resistant magnesium alloy as well as preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410777474.7A CN104561712A (en) | 2014-12-15 | 2014-12-15 | Creep-resistant magnesium alloy as well as preparation method and application thereof |
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| Publication Number | Publication Date |
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| CN104561712A true CN104561712A (en) | 2015-04-29 |
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| CN201410777474.7A Pending CN104561712A (en) | 2014-12-15 | 2014-12-15 | Creep-resistant magnesium alloy as well as preparation method and application thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306096A (en) * | 1999-07-14 | 2001-08-01 | 三井金属矿业株式会社 | Smelting method of alloyed magnesium |
| CN1675395A (en) * | 2002-06-21 | 2005-09-28 | 铸造中心有限公司 | Creep resistant magnesium alloy |
| CN104060139A (en) * | 2014-07-01 | 2014-09-24 | 张家港市佳晟机械有限公司 | High-functional magnesium alloy |
| CN104099505A (en) * | 2014-08-06 | 2014-10-15 | 农彩丽 | Wrought magnesium alloy and preparation method thereof |
| US20140332121A1 (en) * | 2012-01-30 | 2014-11-13 | Korea Institute Of Machinery And Materials | Magnesium alloy having high ductility and high toughness, and preparation method thereof |
-
2014
- 2014-12-15 CN CN201410777474.7A patent/CN104561712A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306096A (en) * | 1999-07-14 | 2001-08-01 | 三井金属矿业株式会社 | Smelting method of alloyed magnesium |
| CN1675395A (en) * | 2002-06-21 | 2005-09-28 | 铸造中心有限公司 | Creep resistant magnesium alloy |
| US20140332121A1 (en) * | 2012-01-30 | 2014-11-13 | Korea Institute Of Machinery And Materials | Magnesium alloy having high ductility and high toughness, and preparation method thereof |
| CN104060139A (en) * | 2014-07-01 | 2014-09-24 | 张家港市佳晟机械有限公司 | High-functional magnesium alloy |
| CN104099505A (en) * | 2014-08-06 | 2014-10-15 | 农彩丽 | Wrought magnesium alloy and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 迈利克 等: "《汽车轻量化 材料、设计与制造》", 31 May 2012, 北京：机械工业出版社 * |
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Inventor after: Cao Huilan Inventor before: Zhang Jianjun Inventor before: Shi Feitao |
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Effective date of registration: 20160628 Address after: 241000, Anhui Yijiang District, Wuhu, Yijiang Jiayuan two stage 14-2-201 Applicant after: Cao Huilan Address before: The high-tech industry in Anhui province 241000 Wuhu Matang District Development Zone Applicant before: M-Union (Wuhu) Co., Ltd. |
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Application publication date: 20150429 |