CN1190511C - Heat-resistant light metals magnesium alloy - Google Patents
Heat-resistant light metals magnesium alloy Download PDFInfo
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- CN1190511C CN1190511C CNB031127681A CN03112768A CN1190511C CN 1190511 C CN1190511 C CN 1190511C CN B031127681 A CNB031127681 A CN B031127681A CN 03112768 A CN03112768 A CN 03112768A CN 1190511 C CN1190511 C CN 1190511C
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- alloy
- magnesium
- silicon
- calcium
- heat
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- 229910000861 Mg alloy Inorganic materials 0.000 title claims abstract description 23
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 15
- 239000002184 metal Substances 0.000 title claims abstract description 15
- 150000002739 metals Chemical class 0.000 title 1
- 239000011777 magnesium Substances 0.000 claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 30
- 239000010703 silicon Substances 0.000 claims abstract description 30
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical group [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 28
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 26
- 239000011575 calcium Substances 0.000 claims abstract description 26
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 25
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 25
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 22
- 239000011701 zinc Substances 0.000 claims abstract description 22
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 12
- 239000011572 manganese Substances 0.000 claims abstract description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 25
- 239000004411 aluminium Substances 0.000 claims description 21
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 claims description 9
- 239000000956 alloy Substances 0.000 abstract description 44
- 229910045601 alloy Inorganic materials 0.000 abstract description 43
- 238000005728 strengthening Methods 0.000 abstract description 9
- 238000005266 casting Methods 0.000 abstract description 4
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000001556 precipitation Methods 0.000 abstract description 2
- 229910019018 Mg 2 Si Inorganic materials 0.000 abstract 1
- 239000006104 solid solution Substances 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- ZFXVRMSLJDYJCH-UHFFFAOYSA-N calcium magnesium Chemical compound [Mg].[Ca] ZFXVRMSLJDYJCH-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- ZSLUVFAKFWKJRC-IGMARMGPSA-N 232Th Chemical compound [232Th] ZSLUVFAKFWKJRC-IGMARMGPSA-N 0.000 description 2
- 229910052779 Neodymium Inorganic materials 0.000 description 2
- 229910052776 Thorium Inorganic materials 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- KMWBBMXGHHLDKL-UHFFFAOYSA-N [AlH3].[Si] Chemical compound [AlH3].[Si] KMWBBMXGHHLDKL-UHFFFAOYSA-N 0.000 description 1
- -1 aluminium manganese Chemical compound 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012770 industrial material Substances 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
本发明公开了一种耐热轻金属镁合金，包括硅，硅与其它组份的配比(重量百分比)为：铝：4%～10%，锌：0.2%～2%，锰：0.1%～0.6%，钙：0.1%～3.0%，硅：0.2%～2.0%，其余为镁。铝是合金中主要强化元素，它通过固溶强化和与镁形成β相(Mg17Al12)的沉淀强化，提高合金的室温强度。此外，铝的加入还提高了合金的铸造工艺性能，使本发明适合于批量生产。2)锌也是合金中的强化元素。虽然它的强化效果不如铝，但是它的加入能改善合金的塑性。3)钙是本发明中用于提高合金耐热性能的元素，加入少量的钙可以提高合金中β相的热稳定性，同时也能大幅度细化合金的显微组织，从而提高合金在高温(100-200℃)下的综合力学性能。4)硅是本发明用于提高合金耐热性能的元素，硅加入后能与镁形成Mg2Si，该化合物都有利合金高温强度和抗蠕变性能的改善。
The invention discloses a heat-resistant light metal magnesium alloy, which comprises silicon, and the proportion (percentage by weight) of silicon and other components is: aluminum: 4%-10%, zinc: 0.2%-2%, manganese: 0.1%- 0.6%, calcium: 0.1% to 3.0%, silicon: 0.2% to 2.0%, and the rest is magnesium. Aluminum is the main strengthening element in the alloy. It improves the room temperature strength of the alloy through solid solution strengthening and precipitation strengthening with magnesium to form β phase (Mg 17 Al 12 ). In addition, the addition of aluminum also improves the casting process performance of the alloy, making the invention suitable for mass production. 2) Zinc is also a strengthening element in the alloy. Although its strengthening effect is not as good as that of aluminum, its addition can improve the plasticity of the alloy. 3) Calcium is an element used to improve the heat resistance of the alloy in the present invention. Adding a small amount of calcium can improve the thermal stability of the β phase in the alloy, and can also greatly refine the microstructure of the alloy, thereby improving the alloy's high temperature resistance. Comprehensive mechanical properties at (100-200°C). 4) Silicon is an element used in the present invention to improve the heat resistance of the alloy. After silicon is added, it can form Mg 2 Si with magnesium. This compound is beneficial to the improvement of the high temperature strength and creep resistance of the alloy.
Description
One, technical field
The present invention relates to a kind of light metal alloy material, especially relate to a kind of heat-resisting light metal magnesium alloy.
Two, background technology
The density of magnesium alloy (proportion) is little, and specific rigidity and specific tenacity height are structural metallic materialss the lightest in the Industrial materials.Owing to adopted magnesium alloy structural part on automobile and the electronic industry, make Application of Magnesium obtain promoting in recent years.Yet compare with aluminium alloy, Application of Magnesium also has very big gap, and one of its reason is to lack enough hot strengths.After envrionment temperature surpassed 120 ℃, the intensity of general magnesium alloy descended rapidly, makes it and can't apply on many Industrial products and equipment.Be mainly used in the heat resistance magnesium alloy of aircraft industry though some have occurred after mid-term in 20th century, these alloys all are difficult to apply in general civilian industry.This mainly is because all contain the noble element (as neodymium, thorium, yttrium etc.) of higher proportion in these alloys, causes the cost of alloy not accepted by the general industry product.In addition, the magnesium alloy processing performance that these aviations are used is all undesirable, is not suitable for large-scale mass production, thereby has also limited applying of they.
Three, technology contents
Technical problem the invention provides a kind of heat-resisting light metal magnesium alloy that is suitable for producing in batches, and this alloy has the advantage that cost is low, intensity is high.
A kind of heat-resisting light metal magnesium alloy of technical scheme comprises aluminium, zinc, manganese, calcium and magnesium, and its proportioning (weight percent) is: aluminium: 4%～10%, and zinc: 0.2%～2%, manganese: 0.1%～0.6%, calcium: 0.1%～30%, all the other are magnesium.
Beneficial effect 1) aluminium is main strengthening element in the alloy, it by solution strengthening with form β (Mg mutually with magnesium
17Al
12) precipitation strength, improve alloy at room temperature intensity.In addition, the adding of aluminium has also improved the casting technique performance of alloy, makes the present invention be suitable for producing in batches.2) zinc also is the strengthening element in the alloy.Though its strengthening effect is not as aluminium, its adding can improve the plasticity of alloy.3) calcium is the element that is used to improve the alloy resistance toheat among the present invention, add a spot of calcium and can improve the thermostability of β phase in the alloy, the also microstructure of refinement alloy significantly simultaneously, thus the comprehensive mechanical property of alloy under high temperature (100-200 ℃) improved.4) silicon is the element that the present invention is used to improve the alloy resistance toheat, and silicon can form Mg with magnesium after adding
2Si, the improvement of all favourable alloy high-temp intensity of this compound and creep-resistant property.In the present invention, under the identical situation of other constituent content, adding 0.5%-1.0% silicon can improve 4 times with the creep-resistant property of alloy under 150 ℃～250 ℃.Under the acting in conjunction of calcium and silicon, alloy of the present invention has performance characteristics such as intensity height, creep-resistant property be good at 120-200 ℃.Different with the heat resistance magnesium alloy that aircraft industry is used, do not contain noble metal elements such as neodymium, thorium, yttrium in the alloy of the present invention, so cost is low.5) effect of manganese mainly is the corrosion resistance nature that improves alloy.Manganese can form compound with the impurity element (as iron) in the alloy in the molten refining process of alloy, be deposited to the crucible bottom, thereby eliminates the deleterious effect of iron contamination to the alloy corrosion resistance nature.
Four, description of drawings
Fig. 1 is the room-temperature mechanical property of the embodiment of the invention 7.
Fig. 2 is the mechanical behavior under high temperature of the embodiment of the invention 7.AZ91 is a kind of magnesium alloy of standard brand, and the data of this AZ91 among the figure are the samples that prepare under similarity condition, and the data that obtain under same test condition.
Fig. 3 is the high-temperature creep resistance of the embodiment of the invention 7.AZ91 is a kind of magnesium alloy of standard brand, and the data of this AZ91 among the figure are the samples that prepare under similarity condition, and the data that obtain under same test condition.
Fig. 4 is the as-cast metallographic structure of silicon-containing alloy embodiment 7 among the present invention.
Fig. 5 be embodiment 7 at 200 ℃, the creep curve under the 50MPa condition.
Fig. 6 be embodiment 7 at 150 ℃, the creep curve under the 70MPa condition.
Five, specific embodiments
1 one kinds of heat-resisting light metal magnesium alloy of embodiment comprise aluminium, zinc, manganese, calcium and magnesium, and its proportioning (weight percent) is: aluminium: 4%～10%, and zinc: 0.2%～2%, manganese: 0.1%～0.6%, calcium: 0.1%～3.0%, all the other are magnesium.
2 one kinds of heat-resisting light metal magnesium alloy of embodiment, comprise aluminium, zinc, manganese, calcium, magnesium and silicon, the proportioning of silicon and other component (weight percent) is: aluminium: 4%～10%, zinc: 0.2%～2%, manganese: 0.1%～0.6%, calcium: 0.1%～3.0%, silicon: 0.2%～2.0%, all the other are magnesium.
3 one kinds of heat-resisting light metal magnesium alloy of embodiment are made up of aluminium, zinc, manganese, calcium, magnesium and silicon, and the proportioning of silicon and other component (weight percent) is: aluminium: 10%, and zinc: 0.2%, manganese: 0.12%, calcium: 2.0%, silicon: 0.2%, the magnesium surplus.
4 one kinds of heat-resisting light metal magnesium alloy of embodiment are made up of aluminium, zinc, manganese, calcium, magnesium and silicon, and the proportioning of silicon and other component (weight percent) is: aluminium: 8%, and zinc: 0.7%, manganese: 0.3%, calcium: 0.3%, silicon: 0.6%, the magnesium surplus.
5 one kinds of heat-resisting light metal magnesium alloy of embodiment are made up of aluminium, zinc, manganese, calcium, magnesium and silicon, and the proportioning of silicon and other component (weight percent) is: aluminium: 6%, and zinc: 1.2%, manganese: 0.45%, calcium: 1.5%, silicon: 1.0%, the magnesium surplus.
6 one kinds of heat-resisting light metal magnesium alloy of embodiment are made up of aluminium, zinc, manganese, calcium, magnesium and silicon, and the proportioning of silicon and other component (weight percent) is: aluminium: 4%, and zinc: 2%, manganese: 0.6%, calcium: 0.1%, silicon: 2.0%, the magnesium surplus.
7 one kinds of heat-resisting light metal magnesium alloy of embodiment are made up of aluminium, zinc, manganese, calcium, magnesium and silicon, and the proportioning of silicon and other component (weight percent) is: aluminium: 9%, zinc: 1.0%, manganese: 0.2%, calcium: 0.3%, silicon: 0.7%, impurity≤0.5, magnesium surplus.
The present invention can prepare with following technology:
1) before molten alloy, to prepare magnesium calcium master alloy earlier.Pure magnesium ingot is placed crucible, and the heating that heats up is melted fully until magnesium ingot.Add pure calcium (preparation magnesium calcium master alloy) then, and feed shielding gas.After treating that calcium melts fully, liquation is poured in the metal mold, get final product magnesium calcium master alloy.
2) earlier pure magnesium, zinc, aluminium manganese master alloy (can buy from market), aluminium silicon master alloy (can buy from market) are put into crucible during molten alloy, and feed shielding gas.After the furnace charge that adds melts fully, add with the homemade magnesium calcium of aforesaid method master alloy, and continue logical shielding gas.After the master alloy fusing, can casting technique routinely obtain heat resistance magnesium alloy foundry goods of the present invention or ingot casting.
Claims (1)
1, a kind of heat-resisting light metal magnesium alloy is characterized in that being made up of aluminium, zinc, manganese, calcium, silicon and magnesium, and its weight percent proportioning is: aluminium: 4%～8%, zinc: 1%～%, manganese: 0.3%～0.6%, calcium: 1.5%～3.0%, silicon: 0.7%～2.0%, all the other are magnesium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031127681A CN1190511C (en) | 2003-01-28 | 2003-01-28 | Heat-resistant light metals magnesium alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031127681A CN1190511C (en) | 2003-01-28 | 2003-01-28 | Heat-resistant light metals magnesium alloy |
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| Publication Number | Publication Date |
|---|---|
| CN1431328A CN1431328A (en) | 2003-07-23 |
| CN1190511C true CN1190511C (en) | 2005-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031127681A Expired - Fee Related CN1190511C (en) | 2003-01-28 | 2003-01-28 | Heat-resistant light metals magnesium alloy |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100339497C (en) * | 2004-09-29 | 2007-09-26 | 上海交通大学 | High-strength creep resistant deforming magnesium alloy containing Ca and Si |
| CN1300357C (en) * | 2004-09-29 | 2007-02-14 | 上海交通大学 | Preparation of high-strength creep resistant deforming magnesium alloy |
| CN100341646C (en) * | 2004-12-24 | 2007-10-10 | 北京有色金属研究总院 | Magnesium alloy piston of engine and preparation method |
| CN100425720C (en) * | 2005-03-31 | 2008-10-15 | 鸿富锦精密工业（深圳）有限公司 | Creep resistant magnesium alloy materials |
| CN100410407C (en) * | 2005-10-19 | 2008-08-13 | 郑州大学 | Preparation method of Mg-Al-Si-Mn-Ca alloy |
| CN101818293B (en) * | 2010-04-21 | 2012-05-30 | 广州有色金属研究院 | Heat resistant magnesium alloy |
| CN103031474A (en) * | 2011-09-29 | 2013-04-10 | 比亚迪股份有限公司 | Magnesium lithium alloy |
| CN102417999B (en) * | 2011-12-09 | 2013-06-12 | 中国科学院长春应用化学研究所 | Method for preparing magnesium alloy |
| CN105256209A (en) * | 2015-10-09 | 2016-01-20 | 天长市兴宇铸造有限公司 | Nanometer yttrium oxide modifying Mg-Al-Zn magnesium alloy material for casting automobile parts and preparation method thereof |
| CN108950333A (en) * | 2018-07-16 | 2018-12-07 | 江苏理工学院 | A kind of high-performance Mg-Al-Zn-Mn-Ca magnesium alloy and preparation method thereof |
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2003
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