CN102828084A - Be-Cr-RE aluminium alloy material - Google Patents
Be-Cr-RE aluminium alloy material Download PDFInfo
- Publication number
- CN102828084A CN102828084A CN2011101594111A CN201110159411A CN102828084A CN 102828084 A CN102828084 A CN 102828084A CN 2011101594111 A CN2011101594111 A CN 2011101594111A CN 201110159411 A CN201110159411 A CN 201110159411A CN 102828084 A CN102828084 A CN 102828084A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- alloy materials
- aluminium alloy
- alloy material
- rare earth
- 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.)
- Pending
Links
Landscapes
- Conductive Materials (AREA)
Abstract
The invention discloses a Be-Cr-RE aluminium alloy material, which comprises the following ingredients of: by weight, 7.1-7.9% of Cu, 0.3-0.4% of Mn, 0.32-0.43% of Cd, 0.2-0.32% of Ti, 0.16-0.19% of B, 0.83-0.95% of Zr, 0.65-0.78% of Cr, 0.06-0.09% of Be, 3.1-4.8% of rare earth element RE, and the balance Al. The Be-Cr-RE aluminium alloy material provided by the invention has characteristics of high strength, good heat resistance, little hot crack tendency, high elongation and low cost.
Description
Technical field
The present invention relates to a kind of aluminum alloy materials, particularly a kind of high strength heat resistant alloy material.
Background technology
Development along with the national economy and the modernization of national defense; Duraluminum is more and more wider as the range of application of light material in every field; Particularly in fields such as aerospace, ships, petrochemical complex, communications and transportation, electric power, electronics, buildings, the demand that aluminum alloy materials is had the high-strength temperature-resistant performance is more and more urgent.Duraluminum mainly contains several series such as Al-Cu, Al-Si, Al-Mg in the world; Wherein Al-Cu is an alloy owing to have characteristics such as density is little, specific tenacity height; Also have good machinability and resistance toheat simultaneously, main as the structural part and the heat-resisting part that bear big load.More than several kinds series alloy in, most intensity all is lower than 400MPa, under the hot conditions more than 250 ℃, instantaneous strength generally all is lower than 200Mpa, creep rupture strength is lower than 100MPa.
Wherein the intensity of aluminum alloy of the several trades mark in the Al-Cu system is greater than 400MPa, but that this is the castability of alloy is poor.In the disclosed document " the microalloying mechanism of action of Sc in duraluminum "; Having described micro-Sc is the effect in the alloy at aluminum bronze; Sc has solid solution-precipitation strength, dispersion-strengthened and grain-boundary strengthening effect; Can suppress the effect of the hot cracking tendency of high-strength aluminium copper alloy, improve the corrosion resistance nature of duraluminum; But scandium is added in the aluminum-copper alloy that thermal treatment can strengthen, under crucial component, generate the W phase, the over-all properties of alloy is had detrimental effect, and scandium belongs to noble metal, Al-Cu-Sc line aluminium alloy manufacturing cost is high.
At present in several kinds of 2XXX line aluminium alloy materials of development; Multiple micro alloying element and REE have been added; Micro alloying element is like Mn, Zr, Cd, Ti, Cr etc.; This kind duraluminum has advantages of higher tensile strength and unit elongation, but that the defective that this type of duraluminum exists is the hot cracking tendency of aluminum alloy materials is big, and castability is poor.
Thus, develop a kind of aluminum alloy materials and have crucial meaning with characteristics such as high-strength temperature-resistant, hot cracking tendency are little, unit elongation is high, cost is low.
Summary of the invention
The purpose of this invention is to provide a kind of Be-Cr-RE aluminum alloy materials, this aluminum alloy materials has the intensity height, good heat resistance, the characteristics that hot cracking tendency is little, unit elongation is high, cost is low.
Technical scheme of the present invention is:
The composition and the weight percent of Be-Cr-RE aluminum alloy materials are following:
Cu:7.1-7.9%; Mn:0.3-0.4%; Cd:0.32-0.43%; Ti:0.2-0.32%; B:0.16-0.19%; Zr:0.83-0.95%; Cr:0.65-0.78%; Be:0.06-0.09%; Rare earth elements RE: 3.1-4.8%; All the other are Al.
Further, said rare earth elements RE comprises one or more the mixed rare-earth elements among La, Ce, Pr, Nd, Er and the Y.
Further, the composition of said aluminum alloy materials and content thereof are Cu:7.1-7.5%; Mn:0.38-0.4%; Cd:0.38-0.4%; Ti:0.2-0.24%; B:0.16-0.17%; Zr:0.83-0.87%; Cr:0.65-0.69%; Be:0.06-0.07%; Rare earth elements RE: 3.1-4.0%; All the other are Al.
Further, the composition of said aluminum alloy materials and content thereof are Cu:7.7-7.9%; Mn:0.3-0.34%; Cd:0.32-0.35%; Ti:0.26-0.3%; B:0.18-0.19%; Zr:0.92-0.95%; Cr:0.72-0.78%; Be:0.08-0.09%; Rare earth elements RE: 4.5-4.8%; All the other are Al.
Be-Cr-RE aluminum alloy materials provided by the invention is main alloying element with Cu, Mn, REE, is polynary microalloy element with Cd, Ti, B, Zr, Cr, Be, has the following advantages:
1, high-strength temperature-resistant property: it is 7.1-7.9% that aluminum alloy materials of the present invention is selected the scope of Cu for use; The scope of REE is 3.1-4.8%; Make the plain proportional adding of Cu and rare earth; The poorness of the matrix solute element that causes with compensation formation rare earth compound, thus under the condition that does not reduce normal temperature strength, improve the high-temperature behavior of alloy; Added the Mn element simultaneously, Mn has the effect that improves recrystallization temperature, refinement recrystal grain, alloy matrix aluminum and crystal boundary is strengthened simultaneously, thereby have excellent high-temperature and normal temperature comprehensive mechanical performance.
2, reduce hot cracking tendency: Cu content is big in the alloy; Form rich Cu phase; Rich Cu is distributed in crystal boundary as the thin brilliant disperse phase of HMP with the disperse of metallic compound form, the strong tendency that spreads to crystal boundary of having offset effectively when melt crystallization that the rich Cu solute of intragranular forms because of degree of supersaturation sharply raises, thereby the structural stress when having slowed down crystallization; Reduced the hot cracking tendency of aluminum alloy materials, made the aluminium alloy casting performance good.
3, unit elongation is high: added Cd, Ti, B, Zr, Cr, Be microalloy element in the alloy material, the multiple disperse phase of rich Cu and microalloy element on the crystal boundary all has the effect of crystal grain thinning; REE is concentrated and is distributed on the crystal boundary face, hinders crystal boundary and moves, and the forming core merit that forms the critical size nucleus is reduced, and nuclei of crystallization quantity increases, thereby makes grain refining, improves unit elongation, and processing characteristics is good.
4, low cost of manufacture: aluminum alloy materials according to the invention does not add the noble metal element, the low cost of manufacture of duraluminum.
Be-Cr-RE high strength heat resistant alloy material of the present invention, tensile strength is 500-520MPa under the room temperature condition, unit elongation is 5.0-6.5%.
Embodiment
Below in conjunction with specific embodiment technical scheme of the present invention is done further detailed description, but embodiment of the present invention is not limited thereto.
The component of Be-Cr-RE aluminum alloy materials and content (quality: g) as follows:
(gross weight is in 1000g)
Embodiment 1
Embodiment 2
| Component | Al | Cu | Mn | Cd | Ti | B | Zr | Cr | Be | Eu | Tensile strength | Unit elongation |
| Quality (g) | 862.4 | 73 | 3.6 | 4.3 | 3.0 | 1.6 | 9.2 | 7.2 | 0.7 | 35 | 520Mpa | 5.5％ |
| Per-cent % | 86.24 | 7.3 | ?0.36 | 0.43 | 0.3 | 0.16 | 0.92 | 0.72 | 0.07 | 3.5 |
Embodiment 3
Embodiment 4
Embodiment 5
Claims (4)
1. Be-Cr-RE aluminum alloy materials is characterized in that its composition and weight percent are following:
Cu:7.1-7.9%; Mn:0.3-0.4%; Cd:0.32-0.43%; Ti:0.2-0.32%; B:0.16-0.19%; Zr:0.83-0.95%; Cr:0.65-0.78%; Be:0.06-0.09%; Rare earth elements RE: 3.1-4.8%; All the other are Al.
2. Be-Cr-RE aluminum alloy materials according to claim 1 is characterized in that, said rare earth elements RE comprises one or more the mixed rare-earth elements among La, Ce, Pr, Nd, Er and the Y.
3. Be-Cr-RE aluminum alloy materials according to claim 1 is characterized in that, the composition of said aluminum alloy materials and content thereof are Cu:7.1-7.5%; Mn:0.38-0.4%; Cd:0.38-0.4%; Ti:0.2-0.24%; B:0.16-0.17%; Zr:0.83-0.87%; Cr:0.65-0.69%; Be:0.06-0.07%; Rare earth elements RE: 3.1-4.0%; All the other are Al.
4. Be-Cr-RE aluminum alloy materials according to claim 1 is characterized in that, the composition of said aluminum alloy materials and content thereof are Cu:7.7-7.9%; Mn:0.3-0.34%; Cd:0.32-0.35%; Ti:0.26-0.3%; B:0.18-0.19%; Zr:0.92-0.95%; Cr:0.72-0.78%; Be:0.08-0.09%; Rare earth elements RE: 4.5-4.8%; All the other are Al.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101594111A CN102828084A (en) | 2011-06-14 | 2011-06-14 | Be-Cr-RE aluminium alloy material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101594111A CN102828084A (en) | 2011-06-14 | 2011-06-14 | Be-Cr-RE aluminium alloy material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102828084A true CN102828084A (en) | 2012-12-19 |
Family
ID=47331390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101594111A Pending CN102828084A (en) | 2011-06-14 | 2011-06-14 | Be-Cr-RE aluminium alloy material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102828084A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10237576A (en) * | 1997-02-26 | 1998-09-08 | Nippon Steel Corp | Aluminum alloy sheet excellent in formability, baking finish hardenability, chemical conversion treatment property, and corrosion resistance and its production |
| CN101363093A (en) * | 2008-07-09 | 2009-02-11 | 贵州铝厂 | High-strength cast aluminium alloy material |
| CN101805844A (en) * | 2009-08-27 | 2010-08-18 | 贵州华科铝材料工程技术研究有限公司 | Be-Cr-RE high-strength heat-resisting aluminum alloy material and production method thereof |
| CN102021371A (en) * | 2009-09-09 | 2011-04-20 | 贵州华科铝材料工程技术研究有限公司 | Co-Cr-RE aluminium alloy material with high strength and heat resistance and preparation method thereof |
-
2011
- 2011-06-14 CN CN2011101594111A patent/CN102828084A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10237576A (en) * | 1997-02-26 | 1998-09-08 | Nippon Steel Corp | Aluminum alloy sheet excellent in formability, baking finish hardenability, chemical conversion treatment property, and corrosion resistance and its production |
| CN101363093A (en) * | 2008-07-09 | 2009-02-11 | 贵州铝厂 | High-strength cast aluminium alloy material |
| CN101805844A (en) * | 2009-08-27 | 2010-08-18 | 贵州华科铝材料工程技术研究有限公司 | Be-Cr-RE high-strength heat-resisting aluminum alloy material and production method thereof |
| CN102021371A (en) * | 2009-09-09 | 2011-04-20 | 贵州华科铝材料工程技术研究有限公司 | Co-Cr-RE aluminium alloy material with high strength and heat resistance and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110066932B (en) | Moderate-strength weldable corrosion-resistant 6xxx series aluminum alloy and preparation method thereof | |
| CN103131904B (en) | Aluminum alloy material and heat treatment technique thereof | |
| CN101624670B (en) | High-strength high-elongation ratio aluminum alloy and preparation method thereof | |
| US10870905B2 (en) | Low-cost high-heat-conduction die-casting magnesium alloy and manufacturing method therefor | |
| US20080138236A1 (en) | Mg Alloys Containing Misch Metal Manufacturing Method of Wrought Mg Alloys Containing Misch Metal, and Wrought Mg Alloys Thereby | |
| CN101319287A (en) | High-strength cast aluminium alloy material | |
| CA2770531A1 (en) | Multi-element heat-resistant aluminum alloy material with high strength and preparation method thereof | |
| CN101363093B (en) | High-strength cast aluminium alloy material | |
| CN103498085A (en) | Low-density Al-Zn-Mg alloy | |
| CN101921938A (en) | Aluminum alloy 5052 having high corrosion resistance and manufacturing method thereof | |
| JP2017528605A (en) | Aluminum alloy for heat exchanger fins | |
| CN104694800A (en) | High-strength light Al-Mg-Zn alloy | |
| CN103774016B (en) | Strength heatproof magnesium alloy in one | |
| CN104004946A (en) | 80-100mm hardenability aluminium alloy with super strength of 690-730Mpa and preparation method thereof | |
| CN105401013A (en) | Cast aluminum alloy for automotive structural parts and preparation method thereof | |
| CN107460380B (en) | A kind of anticorodal and preparation method thereof | |
| US6756133B2 (en) | High temperature aluminum alloy brazing sheet and methods of manufacturing and uses therefor | |
| CN104294109A (en) | Samarium and/or gadolinium-containing heat-resisting cast aluminum alloy and preparation method thereof | |
| Lin et al. | Developing high performance squeeze cast Al-Cu alloys with high Fe and Cu contents | |
| WO1998035068A1 (en) | Aluminum alloy product | |
| CN107419145A (en) | One kind is used for Alcoa and preparation method thereof under high temperature coastal industry environment | |
| CN101597708A (en) | A kind of Al-Mg-Nd-Sc aluminium alloy | |
| CN102828084A (en) | Be-Cr-RE aluminium alloy material | |
| CN102828080A (en) | Be-Cr-Re containing aluminum alloy material with high strength and heat resistance | |
| CN102828087A (en) | Be-Cr-RE high-strength heatproof aluminium alloy material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20121219 |