CN104946944B - A kind of high-strength Al-Cu-Mg-Ce wrought aluminium alloys and preparation method thereof - Google Patents
A kind of high-strength Al-Cu-Mg-Ce wrought aluminium alloys and preparation method thereof Download PDFInfo
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- CN104946944B CN104946944B CN201510411696.1A CN201510411696A CN104946944B CN 104946944 B CN104946944 B CN 104946944B CN 201510411696 A CN201510411696 A CN 201510411696A CN 104946944 B CN104946944 B CN 104946944B
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Abstract
The invention discloses a kind of high-strength Al Cu Mg Ce wrought aluminium alloys and preparation method thereof, which includes following components in percentage by weight：Cu 4.3~4.5%；Mg 0.2~0.6%；Ce 0.1~0.3%；Al surpluses.The Al Cu Mg Ce systems wrought aluminium alloy of the present invention, while high tenacity is obtained, also ensure that alloy has higher tensile strength and yield strength.Due to have selected rare earth element ce, optimal toughening effect is can obtain while microalloying is realized, and the impurity produced due to alloying can be reduced to greatest extent and be mingled with；Due to adding Ce elements in the form of Al Ce intermediate alloys, it is ensured that the accurate control of alloying component so that the preparation process of the alloy is versatile, easy to operate.
Description
Technical field
The present invention relates to metal material preparation field, and in particular to a kind of high-strength Al-Cu-Mg-Ce wrought aluminium alloys and its
Preparation method.
Background technology
Aluminium alloy due to having the advantages that density is low, higher specific strength and specific stiffness, excellent processability, thus
It is widely used in the industry fields such as aerospace, communications and transportation and machine-building.Traditional aluminum alloy junction component is big
All produced using casting method.But due to the problems such as in casting process, casting flaw often occurs, it is serious to reduce production
Rate, and the mechanical property that cast aluminium alloy gold is poor, greatly limit the development of aluminium alloy application.Compared with cast aluminium alloy gold,
Wrought aluminium alloy has intensity, more preferable plasticity and the more diversified specification of higher, is widening the application of aluminum alloy materials
There is great advantage in terms of field.Traditional Al-Cu-Mg line aluminium alloys, as high-strength deformation aluminium alloy, receive more
It is widely applied, but it has been difficult to meet increasingly stringent technological requirement in terms of mechanical property.
The content of the invention
The problem of deforming the deficiency of Al-Cu-Mg alloy performance for tradition, the present invention provides a kind of high-strength Al-Cu-
Mg-Ce wrought aluminium alloys and preparation method thereof, by adding rare-earth element cerium (Ce) on the basis of Al-Cu-Mg alloy, change
The toughness of kind alloy, and the ageing treatment after extruding is combined, the intensity of alloy is further improved, preferably to meet above-mentioned industry
The demand in field.
To achieve the above object, the technical solution taken of the present invention is：
A kind of high-strength Al-Cu-Mg-Ce wrought aluminium alloys, include following components in percentage by weight：
Cu 4.3~4.5%；Mg 0.2~0.6%；Ce 0.1~0.3%；Al surpluses.
To solve the above problems, present invention also offers a kind of preparation method of high-strength Al-Cu-Mg-Ce wrought aluminium alloys,
Include the following steps：
S1, take commercial-purity aluminium 93.4~95.0%, fine copper 4.3~4.5% and pure magnesium 4.2~4.6% by mass percentage,
Wherein, pure magnesium burn out rate is calculated by 4%, is preheating to 100~200 DEG C and is put into crucible electrical resistance furnace and melt, when melt temperature reaches
During to 740 DEG C, weigh 0.5%~1.5% Al-Ce intermediate alloys and be added in Al-Cu-Mg alloy melt, gentle agitation is closed
Golden liquid, to ensure being uniformly distributed for alloying element, after solid material all melts, stands 10 minutes by alloy melt, pours into metal
In mould, aluminium alloy cast ingot is obtained；
S2, after the aluminium alloy cast ingot of gained is preheated 2 hours in 400~430 DEG C of temperature ranges, addition is pre-heated to
In 430~440 DEG C of extrusion die, bar is squeezed into.
Wherein, the extrusion temperature in the step S2 is 460 DEG C, extruding rate 2mm/s, extrusion ratio 110: 1.
Wherein, the mass percent of Ce is 20% in the Al-Ce intermediate alloys.
The invention has the advantages that：
The present invention Al-Cu-Mg-Ce systems wrought aluminium alloy, while high tenacity is obtained, also ensure that alloy with compared with
High tensile strength and yield strength.Due to have selected rare earth element ce, can obtain while microalloying is realized optimal
Toughening effect, and the impurity produced due to alloying can be reduced to greatest extent and be mingled with；Due to being closed using among Al-Ce
The form of gold adds Ce elements, it is ensured that the accurate control of alloying component so that the preparation process of the alloy is versatile, operation
Simply.
Embodiment
In order to which objects and advantages of the present invention are more clearly understood, the present invention is carried out with reference to embodiments further
Describe in detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit this hair
It is bright.
In following embodiments, extrusion temperature is 460 DEG C, extruding rate 2mm/s, extrusion ratio 110: 1；It is used
The mass percent of Ce is 20% in Al-Ce intermediate alloys
Embodiment 1
S1, take commercial-purity aluminium 95.0%, fine copper 4.3% and pure magnesium 4.2% by mass percentage, wherein, pure magnesium burn out rate
Calculated by 4%, be preheating to 100 DEG C and be put into crucible electrical resistance furnace and melt, when melt temperature reaches 740 DEG C, weigh 0.5%
Al-Ce intermediate alloys are added in Al-Cu-Mg alloy melt, gentle agitation aluminium alloy, to ensure uniformly dividing for alloying element
Cloth, after solid material all melts, stands 10 minutes by alloy melt, pours into metal die, obtain aluminium alloy cast ingot；
S2, after the aluminium alloy cast ingot of gained is preheated 2 hours in 400 DEG C of temperature ranges, add and be pre-heated to 430 DEG C
Extrusion die in, be squeezed into bar.
Embodiment 2
S1, take commercial-purity aluminium 93.4%, fine copper 4.5% and pure magnesium 4.6% by mass percentage, wherein, pure magnesium burn out rate
Calculated by 4%, be preheating to 200 DEG C and be put into crucible electrical resistance furnace and melt, when melt temperature reaches 740 DEG C, weigh 1.5%
Al-Ce intermediate alloys are added in Al-Cu-Mg alloy melt, gentle agitation aluminium alloy, to ensure uniformly dividing for alloying element
Cloth, after solid material all melts, stands 10 minutes by alloy melt, pours into metal die, obtain aluminium alloy cast ingot；
S2, after the aluminium alloy cast ingot of gained is preheated 2 hours in 430 DEG C of temperature ranges, add and be pre-heated to 440 DEG C
Extrusion die in, be squeezed into bar.
Embodiment 3
S1, take commercial-purity aluminium 94.2%, fine copper 4.4% and pure magnesium 4.4% by mass percentage, wherein, pure magnesium burn out rate
Calculated by 4%, be preheating to 150 DEG C and be put into crucible electrical resistance furnace and melt, when melt temperature reaches 740 DEG C, weigh 1%
Al-Ce intermediate alloys are added in Al-Cu-Mg alloy melt, gentle agitation aluminium alloy, to ensure uniformly dividing for alloying element
Cloth, after solid material all melts, stands 10 minutes by alloy melt, pours into metal die, obtain aluminium alloy cast ingot；
S2, after the aluminium alloy cast ingot of gained is preheated 2 hours in 415 DEG C of temperature ranges, add and be pre-heated to 435 DEG C
Extrusion die in, be squeezed into bar.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, without departing from the principle of the present invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
- A kind of 1. preparation method of high-strength Al-Cu-Mg-Ce wrought aluminium alloys, it is characterised in that the high-strength Al-Cu-Mg-Ce Wrought aluminium alloy includes following components in percentage by weight：Cu 4.3~4.5%；Mg 0.2~0.6%；Ce 0.1~0.3%；Al surpluses；The preparation method of the high-strength Al-Cu-Mg-Ce wrought aluminium alloys includes the following steps：S1, take commercial-purity aluminium 93.4~95.0%, fine copper 4.3~4.5% and pure magnesium 4.2~4.6% by mass percentage, its In, pure magnesium burn out rate is calculated by 4%, is preheating to 100~200 DEG C and is put into crucible electrical resistance furnace and melt, when melt temperature reaches At 740 DEG C, weigh 0.5%~1.5% Al-Ce intermediate alloys and be added in Al-Cu-Mg alloy melt, gentle agitation alloy Liquid, to ensure being uniformly distributed for alloying element, after solid material all melts, stands 10 minutes by alloy melt, pours into metal pattern In tool, aluminium alloy cast ingot is obtained；S2, after the aluminium alloy cast ingot of gained is preheated 2 hours in 400~430 DEG C of temperature ranges, add and be pre-heated to 430 In~440 DEG C of extrusion die, bar is squeezed into.
- A kind of 2. preparation method of high-strength Al-Cu-Mg-Ce wrought aluminium alloys according to claim 1, it is characterised in that Extrusion temperature in the step S2 is 460 DEG C, extruding rate 2mm/s, extrusion ratio 110: 1.
- A kind of 3. preparation method of high-strength Al-Cu-Mg-Ce wrought aluminium alloys according to claim 1, it is characterised in that The mass percent of Ce is 20% in the Al-Ce intermediate alloys.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510411696.1A CN104946944B (en) | 2015-07-07 | 2015-07-07 | A kind of high-strength Al-Cu-Mg-Ce wrought aluminium alloys and preparation method thereof |
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| CN201510411696.1A CN104946944B (en) | 2015-07-07 | 2015-07-07 | A kind of high-strength Al-Cu-Mg-Ce wrought aluminium alloys and preparation method thereof |
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| CN104946944A CN104946944A (en) | 2015-09-30 |
| CN104946944B true CN104946944B (en) | 2018-04-27 |
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| CN106591649A (en) * | 2016-12-14 | 2017-04-26 | 沈阳工业大学 | High-strength Al-Cu-Mg-Mn-Er wrought aluminum alloy and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489408A1 (en) * | 1990-12-03 | 1992-06-10 | Aluminum Company Of America | Aircraft sheet |
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2015
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0489408A1 (en) * | 1990-12-03 | 1992-06-10 | Aluminum Company Of America | Aircraft sheet |
Non-Patent Citations (3)
| Title |
|---|
| 时效时间对Al-4.5Cu-0.6Mg合金力学性的影响;王川等;《热加工工艺》;20150430;第44卷(第8期);第185-190页 * |
| 热处理对Al-Cu-Mg-La合金的组织及力学性能的影响;唐玲;《中国优秀硕士学位论文全文数据库 工程科技I辑》;20141015;第B022-94页 * |
| 稀土元素对Al-Cu-Mg-Ag合金显微组织影响的研究进展;宋旼等;《中国有色金属学报》;20090831;第19卷(第8期);第1355-1365页 * |
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