CN1190511C - Heat-resistant light metals magnesium alloy - Google Patents
Heat-resistant light metals magnesium alloy Download PDFInfo
- Publication number
- 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
- Authority
- CN
- China
- Prior art keywords
- alloy
- magnesium
- zinc
- calcium
- silicon
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The present invention discloses a light-metal magnesium alloy with heat resistance, which comprises the components by the weight percentage proportioning: 4% to 10% of aluminum, 0.2% to 2% of zinc, 0.1% to 0.6% of manganese, 0.1 to 3.0% of calcium, 0.2% to 2.0% of silicon and magnesium as the rest, wherein the aluminum is a main strengthening element in the alloy and enhances the room-temperature strength of the alloy by solid solution strengthening and precipitation strengthening of a beta phase (Mg17Al12) formed with the magnesium. In addition, the addition of the aluminum also enhances the casting process property of the alloy to cause the present invention to be suitable for bulk production; 2) the zinc is also a strengthening element in the alloy; although the strengthening effect of the zinc is not as good as that of the aluminum, the addition of the zinc can improve the plasticity of the alloy; 3) the calcium of the present invention is an element for enhancing the heat resistance of the alloy, the heat stability of the beta phase in the alloy can be enhanced by adding a small amount of the calcium, and simultaneously, the microscopic structure of the alloy can be greatly refined so as to enhance the comprehensive mechanical property of the alloy at high temperature (100 to 200 DEG C); 4) the silicon of the present invention is an element for enhancing the heat resistance of the alloy and can form Mg2Si with the magnesium after being added. The compound is totally favorable to improving the high-temperature strength and the 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1431328A CN1431328A (en) | 2003-07-23 |
| CN1190511C true CN1190511C (en) | 2005-02-23 |
Family
ID=4790290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031127681A Expired - Fee Related CN1190511C (en) | 2003-01-28 | 2003-01-28 | Heat-resistant light metals magnesium alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190511C (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300357C (en) * | 2004-09-29 | 2007-02-14 | 上海交通大学 | Preparation of high-strength creep resistant deforming magnesium alloy |
| 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 |
| 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 | Mg-Al-Si-Mn-Ca alloy and method for preparing same |
| 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 |
-
2003
- 2003-01-28 CN CNB031127681A patent/CN1190511C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1431328A (en) | 2003-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1194111C (en) | Heat-resistant rare earth magnesium alloy | |
| CN101787472B (en) | Heat-resistant forged magnesium-rare earth alloy and preparation method thereof | |
| CN101440448B (en) | Aluminum cast alloy capable of being used under +/- 125 DEG C and manufacturing method thereof | |
| CN1190511C (en) | Heat-resistant light metals magnesium alloy | |
| CN112143945A (en) | High-strength and high-toughness cast aluminum-silicon alloy containing multiple composite rare earth elements and preparation method thereof | |
| CN104032195A (en) | Efficiently-extrudable low-cost high-performance heat-conducting magnesium alloy and preparation method thereof | |
| CN113564391B (en) | Method for eliminating primary silicon in hypereutectic aluminum-silicon alloy by utilizing melt circulation overheating | |
| CN114262811B (en) | Method for improving magnesium alloy refining effect of Mg-Zr intermediate alloy | |
| CN101705397A (en) | Al-Si-Mg-Er rare earth casting aluminium alloy | |
| CN102114579A (en) | High-strength aluminum alloy welding wire and preparation method thereof | |
| CN101538666A (en) | Al-Sb-Y-Mg modifier for hypoeutectic Al-Si alloy and preparation process thereof | |
| CN1587430A (en) | Deformed magnesium alloy and its casting and deforming processing process | |
| CN102912197A (en) | Aluminum-silicon-magnesium casting aluminum alloy and method for manufacturing same | |
| CN103305732A (en) | Method for preparing rare-earth yttrium containing super-high-strength wrought aluminium alloy | |
| CN105154729A (en) | Cast aluminum-zinc-magnesium-copper-tantalum alloy and manufacturing method thereof | |
| CN101230432A (en) | Method for preparing high-strength heat-resistant ferro-aluminium alloy parts | |
| CN113373355A (en) | Multi-scale particle modified 7000 series alloy wire and preparation method thereof | |
| CN113234948A (en) | Quaternary alloy grain refiner and preparation and application methods thereof | |
| CN101880806B (en) | Heatproof magnesium alloy and preparation method thereof | |
| CN1169988C (en) | Low cost heat-resistant magnesium alloy | |
| CN1055136C (en) | Casting-state aluminium alloy and its prepn. method | |
| EP2476764B1 (en) | Preparation method of al-zr-c master alloy | |
| CN114985686A (en) | Preparation method of high-strength heat-resistant high-copper-deformation aluminum alloy large-size round ingot | |
| CN1584090A (en) | High-strength deforming magnesium alloy | |
| CN109280786B (en) | Aluminum-tungsten intermediate alloy and production 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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |