CN101265540A - Thermal fatigue resisting aluminum alloy - Google Patents
Thermal fatigue resisting aluminum alloy Download PDFInfo
- Publication number
- CN101265540A CN101265540A CN 200810023212 CN200810023212A CN101265540A CN 101265540 A CN101265540 A CN 101265540A CN 200810023212 CN200810023212 CN 200810023212 CN 200810023212 A CN200810023212 A CN 200810023212A CN 101265540 A CN101265540 A CN 101265540A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- thermal fatigue
- aluminium alloy
- alloy
- heat
- 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
Abstract
A thermal fatigue resistant aluminum alloy, relating to the field of aluminum alloy, is characterized in that the alloy comprises (wt %) Cu 2.0-2.3, Mg 1.52-1.71, Fe 1.29-1.38, Ni 1.27-1.41, Si 0.6-0.8, Mn 1.3-2.1, Ti 0.1-0.4, Nb 0.35-0.46, V 0.4-0.5, Y 0.01-0.09, and Al in balance. The inventive aluminum alloy adds new alloy elements including Mn, Ti, Nb, V and Y based on LD8 aluminum alloy in accordance with the principles of solid solution strengthening, dispersion strengthening and crystal boundary strengthening, so as to remarkably improve thermal fatigue resistant property with ensuring the high temperature property, corrosion-resisting property and abrasion resistant property of LD8 aluminum alloy.
Description
Technical field
The present invention relates to the aluminium alloy technical field, refer in particular to a kind of thermal fatigue resisting aluminum alloy, be applicable to be produced on to be in the various members that low temperature is worked under the high temperature cold cycling condition.
Background technology
The application of aluminium alloy is increasingly extensive, and its Application Areas almost relates to all respects of life.Aluminium alloy consumption in the present American-European developed country car accounts for 5.5% of car weight from nineteen ninety generation and brings up at present more than 15%, and this makes that complete vehicle weight is corresponding and has descended 20%; The weight saving that employing all-aluminium engine replacement cast iron engine can make engine for improving automotive performance, reduces the discharging tool and has very important significance more than 40%.The rate of utilization of external passenger car all-aluminium engine surpasses 50%, and the manufacturing technology of domestic all-aluminium engine is still immature.The application of all-aluminium engine has become the trend of automobile industry development, but works under the high-temp and high-strength condition, and is very high to the requirement of aluminium alloy.Common aluminum alloy very easily cracks in the alternating hot and cold environment, causes part failure; As the motor car engine material, thermal fatigue property has directly determined the car load reliability of operation.The heat-resistant anti-fatigue performance that improves material is significant for elongated component work-ing life and raising equipment complete machine operation stability.
Forefathers have carried out some researchs to aluminium alloy heat-resistant anti-fatigue performance, document [1] (Zhang Wenxiao, Guo Chengbi, the thermal fatigue characteristics of aluminium alloy and fracture mechanics computational analysis, the solid mechanics journal, 2002 Vol.23No.03) and document [2] (Zhou Jiazhang, Zhang Wenxiao, 2A80 aluminum alloy materials thermal fatigue life research, Dalian aquatic product Academy journal, 2002 Vol.17No.02) tentatively inquire into aluminium alloy heat-resistant anti-fatigue performance, but do not related to the concrete grammar that improves aluminium alloy heat-resistant anti-fatigue performance.
Summary of the invention
The present invention is according to principles such as solution strengthening, dispersion-strengthened and grain-boundary strengthenings, on LD8 aluminium alloy basis, introduce new alloying element: Mn, Ti, Nb, V, Y etc., a kind of thermal fatigue resisting aluminum alloy is provided, improve the heat-resistant anti-fatigue performance of aluminium alloy, also have corrosion-resistant, the abrasion resistance properties of good high-temperature simultaneously.
The concrete technical scheme of the present invention is that a kind of thermal fatigue resisting aluminum alloy is characterized in that: component by weight percentage, Cu is 2.0～2.3%, and Mg is 1.52～1.71%, and Fe is 1.29～1.38%, Ni is 1.27～1.41%, Si is 0.6～0.8%, and Mn is 1.3～2.1%, and Ti is 0.1～0.4%, Nb is 0.35～0.46%, V is 0.4～0.5%, and Y is 0.01～0.09%, and surplus is Al.
Above-mentioned thermal fatigue resisting aluminum alloy, Cu is preferably 2.13%, and Ni is preferably 1.35%, and Mn is preferably 1.72%, and Ti is preferably 0.31%, and Nb is preferably 0.41%, and V is preferably 0.5%, and Y is preferably 0.06%.
The technical solution adopted in the present invention not only can guarantee high-temperature behavior, corrosion resistance nature, the abrasion resistance properties of LD8 aluminium alloy, has also significantly improved the heat-resistant anti-fatigue performance, finally obtains the good aluminium alloy of heat-resistant anti-fatigue performance.
Embodiment
Embodiment 1:
Smelt thermal fatigue resisting aluminum alloy of the present invention (being designated as the 1# aluminium alloy) in middle frequency furnace, composition is that Cu is 2.3%, and Mg is 1.52%, and Fe is 1.38%, Ni is 1.27%, and Si is 0.6%, and Mn is 2.1%, and Ti is 0.1%, Nb is 0.35%, and V is 0.4%, and Y is 0.01%, and surplus is Al.Be cast into as-cast specimen after the smelting, carry out 20 ℃～400 ℃ cold cycling thermal fatigue tests.Thermal fatigue property sees Table 1 heat fatigue cracking growth data table.
Embodiment 2:
Smelt thermal fatigue resisting aluminum alloy of the present invention (being designated as the 2# aluminium alloy) in middle frequency furnace, composition is that Cu is 2.0%, and Mg is 1.71%, and Fe is 1.29%, Ni is 1.41%, and Si is 0.8%, and Mn is 1.3%, and Ti is 0.4%, Nb is 0.46%, and V is 0.5%, and Y is 0.09%, and surplus is Al.Be cast into as-cast specimen after the smelting, carry out 20 ℃～400 ℃ cold cycling thermal fatigue tests.Thermal fatigue property sees Table 1 heat fatigue cracking growth data table.
Embodiment 3:
Smelt thermal fatigue resisting aluminum alloy of the present invention (being designated as the 3# aluminium alloy) in middle frequency furnace, composition is that Cu is 2.13%, and Mg is 1.61%, and Fe is 1.31%, Ni is 1.35%, and Si is 0.71%, and Mn is 1.72%, and Ti is 0.31%, Nb is 0.41%, and V is 0.5%, and Y is 0.06%, and surplus is Al.Be cast into as-cast specimen after the smelting, carry out 20 ℃～400 ℃ cold cycling thermal fatigue tests.Thermal fatigue property sees Table 1 heat fatigue cracking growth data table.
Find that by table 1 contrast the heat fatigue cracking of aluminium alloy of the present invention occurs obviously being later than common aluminum alloy and LD8 aluminium alloy, shows that the heat-resistant anti-fatigue performance of aluminium alloy of the present invention obviously is better than common aluminum alloy and LD8 aluminium alloy.
Table 1 heat fatigue cracking growth data table
Claims (2)
1, a kind of heat-resisting tired aluminium alloy is characterized in that: component by weight percentage, Cu is 2.0～2.3%, Mg is 1.52～1.71%, Fe is 1.29～1.38%, and Ni is 1.27～1.41%, and Si is 0.6～0.8%, Mn is 1.3～2.1%, Ti is 0.1～0.4%, and Nb is 0.35～0.46%, and V is 0.4～0.5%, Y is 0.01～0.09%, and surplus is Al.
2, a kind of heat-resisting tired aluminium alloy according to claim 1 is characterized in that: component by weight percentage, Cu is preferably 2.13%, Ni is preferably 1.35%, and Mn is preferably 1.72%, and Ti is preferably 0.31%, Nb is preferably 0.41%, and V is preferably 0.5%, and Y is preferably 0.06%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810023212 CN101265540A (en) | 2008-04-02 | 2008-04-02 | Thermal fatigue resisting aluminum alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810023212 CN101265540A (en) | 2008-04-02 | 2008-04-02 | Thermal fatigue resisting aluminum alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101265540A true CN101265540A (en) | 2008-09-17 |
Family
ID=39988230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810023212 Pending CN101265540A (en) | 2008-04-02 | 2008-04-02 | Thermal fatigue resisting aluminum alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101265540A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021398A (en) * | 2009-09-17 | 2011-04-20 | 贵州华科铝材料工程技术研究有限公司 | Ag-Nb-RE aluminium alloy material with high strength and heat resistance and preparation method thereof |
| CN105478746A (en) * | 2015-12-08 | 2016-04-13 | 艾瑞福斯特（北京）技术开发有限公司 | Heat-resisting aluminum alloy powder for engine |
| CN109136692A (en) * | 2018-10-18 | 2019-01-04 | 河北钢研德凯科技有限公司 | Cast aluminium alloy gold and preparation method thereof |
-
2008
- 2008-04-02 CN CN 200810023212 patent/CN101265540A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102021398A (en) * | 2009-09-17 | 2011-04-20 | 贵州华科铝材料工程技术研究有限公司 | Ag-Nb-RE aluminium alloy material with high strength and heat resistance and preparation method thereof |
| CN102021398B (en) * | 2009-09-17 | 2013-08-21 | 贵州华科铝材料工程技术研究有限公司 | Ag-Nb-RE aluminium alloy material with high strength and heat resistance and preparation method thereof |
| CN105478746A (en) * | 2015-12-08 | 2016-04-13 | 艾瑞福斯特（北京）技术开发有限公司 | Heat-resisting aluminum alloy powder for engine |
| CN109136692A (en) * | 2018-10-18 | 2019-01-04 | 河北钢研德凯科技有限公司 | Cast aluminium alloy gold and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Jeong | High temperature mechanical properties of Al–Si–Mg–(Cu) alloys for automotive cylinder heads | |
| Vasanthakumar et al. | Recent developments in powder metallurgy based aluminium alloy composite for aerospace applications | |
| CN102912196B (en) | Aluminum-silicon-magnesium cast aluminum alloy and manufacturing method thereof | |
| WO2013034001A1 (en) | Al-si-mg cast aluminum alloy and process for casting same | |
| CN1317410C (en) | Abrasion resistant, heat resistant high silicone aluminium alloy and its shaping technology | |
| MXPA06009523A (en) | High temperature aluminium alloy. | |
| CA2635470A1 (en) | Copper-zinc alloy, production method and use | |
| CN101942585B (en) | Aluminum alloy and diesel engine piston | |
| JP4800864B2 (en) | compressor | |
| CN109022963B (en) | Method for improving heat strength of 7000 series high-strength aluminum alloy petroleum drilling pipe material | |
| CN107641741A (en) | A kind of high heat conduction aluminium alloy | |
| CN111733346A (en) | High-temperature alloy for hydrogen fuel cell air compressor bearing and preparation method thereof | |
| US20090208362A1 (en) | High elevated temperature strength nano aluminum-matrix-composite alloy and the method to make the same | |
| CN105401005A (en) | Al-Si alloy material and production method thereof | |
| CN102690997A (en) | Ferritic stainless steel and method of manufacturing the same | |
| CN101265540A (en) | Thermal fatigue resisting aluminum alloy | |
| CN103014412A (en) | Composite heat-resistant titanium alloy | |
| US20190062875A1 (en) | Copper alloy containing tin, method for producing same, and use of same | |
| CN114592142A (en) | Medium-strength high-toughness titanium alloy with yield strength of 800MPa for ocean engineering and preparation process thereof | |
| EP2503012A1 (en) | Precipitation hardened heat-resistant steel | |
| CN102605214A (en) | Novel nickel-base alloy for vent valve of combustion engine | |
| CN103014413A (en) | Composite reinforced heat-resistant titanium alloy | |
| CN115537613A (en) | New energy automobile motor shell aluminum alloy and forming method thereof | |
| KR101738038B1 (en) | Excellent high elasticity and wear resistance hyper-eutectic al-si alloy | |
| KR20220141725A (en) | Aluminum alloy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080917 |