CN103014468A - Magnesium-gadolinium-yttrium alloy - Google Patents
Magnesium-gadolinium-yttrium alloy Download PDFInfo
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- CN103014468A CN103014468A CN2012105560833A CN201210556083A CN103014468A CN 103014468 A CN103014468 A CN 103014468A CN 2012105560833 A CN2012105560833 A CN 2012105560833A CN 201210556083 A CN201210556083 A CN 201210556083A CN 103014468 A CN103014468 A CN 103014468A
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- magnesium
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- gadolinium
- yttrium alloy
- yittrium
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Abstract
The invention discloses a magnesium-gadolinium-yttrium alloy. The magnesium-gadolinium-yttrium alloy comprises the following components by mass percent: 4.52-6.51% of Y, 8.50-12.68% of Gd, 1.69-2.48% of Mn, 0.01-0.02% of Ni, 0.01-0.02% of Cu and the balance of Mg and inevitable impurities. The magnesium-gadolinium-yttrium alloy is good in heat resistance and high in strength and can be applied to high-temperature-resistant structural components in the aerospace field and in the automobile industry.
Description
Technical field
The present invention relates to the alloy field, particularly relate to a kind of magnesium-yttrium-gadpolinium alloy.
Background technology
Magnesium alloy is to add other elementary composition alloys take magnesium as base.Be characterized in: density little (about the 1.8g/cm3 magnesium alloy), specific tenacity is high, and Young's modulus is large, good heat dissipation, shock absorbing is good, and the loading capacity that withstands shocks is larger than aluminium alloy, and the corrosive nature of anti-organism and alkali is good.Main alloy element has aluminium, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium etc.What use was the widest at present is magnalium, secondly is magnesium-manganese alloy and magnesium zinc zirconium alloy.Be mainly used in the industrial sectors such as Aeronautics and Astronautics, transportation, chemical industry, rocket.Be the lightest metal in practical metal, the proportion of magnesium approximately is 2/3 of aluminium, is 1/4 of iron.It is the lightest metal in the practical metal, high strength, high rigidity.
DritsE was towards finding that adding heavy rare earth yttrium can produce Beneficial Effect to magnesium alloy in 1979, this important discovery make people develop a series of at high temperature have a good mechanical property contain the Y alloy, thereby be that the application of heavy rare earths (Heary rare earth, HRE) in heat resistance magnesium alloy laid a good foundation.Since the 9O age in 20th century, people satisfy the demand of national defence leading-edge field in order to obtain the more superior magnesium alloy of performance, begin to further investigate Mg-HRE alloy.Compare with light rare earths, heavy rare earth element mainly has following 2 advantages: the same solubility of (1) heavy rare earths in magnesium is large, and reduces sharply decline with solubility with temperature, thereby has well with molten reinforcement and precipitation strength effect; (2) heavy rare earths can be worked in coordination with the mechanical property of light rare earths or other transition element actings in conjunction raising magnesium alloy.
Thereby the alloy of magnesium and heavy rare earth element becomes the now emphasis of research.
Summary of the invention
The technical problem that the present invention mainly solves provides a kind of magnesium-gadolinium-yittrium alloy, good heat resistance, and intensity is high.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: a kind of magnesium-gadolinium-yittrium alloy is provided, and the mass percentage content of its component is:
Y 4.52%~6.51% ；
Gd 8.50%~12.68%；
Mn 1.69%~2.48% ；
Ni 0.01%~0.02% ；
Cu 0.01%~0.02% ；
All the other are Mg and inevitable impurity.
In a preferred embodiment of the present invention, the mass percentage content of described component is:
Y 5.21% ；
Gd 10.48%；
Mn 2.20%
Ni 0.01% ；
Cu 0.015% ；
All the other are Mg and inevitable impurity.
In a preferred embodiment of the present invention, described magnesium-gadolinium-yittrium alloy also comprises≤Ti of 0.10% mass percent.
In a preferred embodiment of the present invention, described magnesium-gadolinium-yittrium alloy also comprises the Ti of 0.068% mass percent.
The invention has the beneficial effects as follows: magnesium-gadolinium of the present invention-yittrium alloy has the following advantages:
1), the atomic size that adds Y element: Y and magnesium differs greatly, and can make the magnesium matrix dot matrix produce distortion, carries heavy alloyed homogenization temperature and Young's modulus, slow down diffusion and self-diffusion process, the speed of reduction climb of dislocation is strengthened matrix.
2), when Y addition in Mg surpasses 4.52 (massfraction), the MgO that generates during alloy high-temp and Y
2O
3Can effectively stop alloy to continue oxidation, and along with the rising of oxidizing temperature and the increase protective membrane of Y content obviously thicken.
3), add the Gd element: gadolinium has similar chemical property to yttrium, by distribution and the existence form of control Gd in alloy substrate, puies forward heavy alloyed mechanical property.
4), add the Mn element: Mn element and the rare earth element generation multiple compounds that can react, these violent rare earths have preferably thermotolerance, and being distributed in the alloy substrate of energy disperse can improve the mechanical property of alloy, resistance toheat particularly strengthens intensity and the heat resistance of alloy.
5), add the Ti element: avoid the alloy surface blackout, in order to obtain the relatively surface of light.
Magnesium-gadolinium of the present invention-yittrium alloy, good heat resistance, intensity is high, can be applicable on aerospace field and the automotive industry high-temperature-resistant structure spare.
Embodiment
The below is described in detail preferred embodiment of the present invention, thereby so that advantages and features of the invention can be easier to be it will be appreciated by those skilled in the art that protection scope of the present invention is made more explicit defining.
Embodiment one
Choose starting material: the mass percentage content of described component is: Y 5.21%; Gd 10.48%; Mn 2.20%; Ni 0.01%; Cu 0.015%; All the other are Mg;
Processing: above-mentioned raw materials is carried out melting-cast-extrusion processing, obtain magnesium-gadolinium-yittrium alloy sample one.
Embodiment two
Choose starting material: the mass percentage content of described component is: Y 4.52%; Gd 12.68%; Mn 1.69%; Ni 0.01%; Cu 0.01%; Ti 0.068%; All the other are Mg;
Processing: above-mentioned raw materials is carried out melting-cast-extrusion processing, obtain magnesium-gadolinium-yittrium alloy sample two.
Embodiment three
Choose starting material: the mass percentage content of described component is: Y 6.51%; Gd 8.50%; Mn 2.48%; Ni 0.02%; Cu 0.02%; Ti 0.10%; All the other are Mg;
Processing: above-mentioned raw materials is carried out melting-cast-extrusion processing, obtain magnesium-gadolinium-yittrium alloy sample three.
Embodiment four
Choose starting material: the mass percentage content of described component is: Y 5.58%; Gd 10.50%; Mn 2.08%; Ni 0.015%; Cu 0.01%; All the other are Mg;
Processing: above-mentioned raw materials is carried out melting-cast-extrusion processing, obtain magnesium-gadolinium-yittrium alloy sample four.
Embodiment five
Choose starting material: the mass percentage content of described component is: Y 5.58%; Gd 10.50%; Mn 2.08%; Ni 0.015%; Cu 0.01%; Ti 1.05%; All the other are Mg;
Processing: above-mentioned raw materials is carried out melting-cast-extrusion processing, obtain magnesium-gadolinium-yittrium alloy sample five.
Magnesium-gadolinium of the present invention-yittrium alloy has the following advantages:
1), the atomic size that adds Y element: Y and magnesium differs greatly, and can make the magnesium matrix dot matrix produce distortion, carries heavy alloyed homogenization temperature and Young's modulus, slow down diffusion and self-diffusion process, the speed of reduction climb of dislocation is strengthened matrix.
2), when Y addition in Mg surpasses 4.52 (massfraction), the MgO that generates during alloy high-temp and Y
2O
3, can effectively stop alloy to continue oxidation, and along with the rising of oxidizing temperature and the increase protective membrane of Y content obviously thicken.
3), add the Gd element: gadolinium has similar chemical property to yttrium, by distribution and the existence form of control Gd in alloy substrate, puies forward heavy alloyed mechanical property.
4), add the Mn element: Mn element and the rare earth element generation multiple compounds that can react, these violent rare earths have preferably thermotolerance, and being distributed in the alloy substrate of energy disperse can improve the mechanical property of alloy, resistance toheat particularly strengthens intensity and the heat resistance of alloy.
5), add the Ti element: avoid the alloy surface blackout, in order to obtain the relatively surface of light.
Magnesium-gadolinium of the present invention-yittrium alloy, good heat resistance, intensity is high, can be applicable on aerospace field and the automotive industry high-temperature-resistant structure spare.
The above only is embodiments of the invention; be not so limit claim of the present invention; every equivalent structure or equivalent flow process conversion that utilizes specification sheets of the present invention to do, or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (4)
1. magnesium-gadolinium-yittrium alloy is characterized in that, the mass percentage content of its component is:
Y 4.52%~6.51% ；
Gd 8.50%~12.68%；
Mn 1.69%~2.48% ；
Ni 0.01%~0.02% ；
Cu 0.01%~0.02% ；
All the other are Mg and inevitable impurity.
2. magnesium-gadolinium according to claim 1-yittrium alloy is characterized in that, the mass percentage content of described component is:
Y 5.21% ；
Gd 10.48%；
Mn 2.20%
Ni 0.01% ；
Cu 0.015% ；
All the other are Mg and inevitable impurity.
3. magnesium-gadolinium according to claim 1-yittrium alloy is characterized in that, described magnesium-gadolinium-yittrium alloy also comprises≤and the Ti of 0.10% mass percent.
4. magnesium-gadolinium according to claim 3-yittrium alloy is characterized in that, described magnesium-gadolinium-yittrium alloy also comprises the Ti of 0.068% mass percent.
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| CN2012105560833A CN103014468A (en) | 2012-12-20 | 2012-12-20 | Magnesium-gadolinium-yttrium alloy |
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| CN2012105560833A CN103014468A (en) | 2012-12-20 | 2012-12-20 | Magnesium-gadolinium-yttrium alloy |
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| CN103014468A true CN103014468A (en) | 2013-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170767A (en) * | 2019-06-17 | 2019-08-27 | 无锡日月合金材料有限公司 | A kind of novel oxidation-resistant multicomponent alloy solder and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0400574A1 (en) * | 1989-05-30 | 1990-12-05 | Nissan Motor Co., Ltd. | Fiber reinforced magnesium alloy |
| CN1804083A (en) * | 2006-01-23 | 2006-07-19 | 中南大学 | High-strength heat-resistant rare earth magnesium alloy |
| CN101078079A (en) * | 2007-06-22 | 2007-11-28 | 西安工业大学 | High-intensity thermal deformation resistant magnesium alloy |
| CN101148724A (en) * | 2007-11-06 | 2008-03-26 | 中国科学院长春应用化学研究所 | Aluminum-free heat-resistant die-casting rare earth magnesium alloy |
| CN101463441A (en) * | 2009-01-15 | 2009-06-24 | 上海交通大学 | Rare earth-containing high strength heat resisting magnesium alloy and preparation thereof |
| CN101532106A (en) * | 2009-04-13 | 2009-09-16 | 河南科技大学 | Heat resisting casting rare earth magnesium alloy and preparation method thereof |
| CN101914712A (en) * | 2010-07-07 | 2010-12-15 | 中南大学 | Extrusion deformation process of high-strength magnesium alloy thick plate |
-
2012
- 2012-12-20 CN CN2012105560833A patent/CN103014468A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0400574A1 (en) * | 1989-05-30 | 1990-12-05 | Nissan Motor Co., Ltd. | Fiber reinforced magnesium alloy |
| CN1804083A (en) * | 2006-01-23 | 2006-07-19 | 中南大学 | High-strength heat-resistant rare earth magnesium alloy |
| CN101078079A (en) * | 2007-06-22 | 2007-11-28 | 西安工业大学 | High-intensity thermal deformation resistant magnesium alloy |
| CN101148724A (en) * | 2007-11-06 | 2008-03-26 | 中国科学院长春应用化学研究所 | Aluminum-free heat-resistant die-casting rare earth magnesium alloy |
| CN101463441A (en) * | 2009-01-15 | 2009-06-24 | 上海交通大学 | Rare earth-containing high strength heat resisting magnesium alloy and preparation thereof |
| CN101532106A (en) * | 2009-04-13 | 2009-09-16 | 河南科技大学 | Heat resisting casting rare earth magnesium alloy and preparation method thereof |
| CN101914712A (en) * | 2010-07-07 | 2010-12-15 | 中南大学 | Extrusion deformation process of high-strength magnesium alloy thick plate |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110170767A (en) * | 2019-06-17 | 2019-08-27 | 无锡日月合金材料有限公司 | A kind of novel oxidation-resistant multicomponent alloy solder and preparation method thereof |
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Application publication date: 20130403 |