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《Journal of Central South University of Technology(Natural Science)》 2002-06
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Present research and developing trends of ultra high strength aluminum alloys

ZENG Yu,YIN Zhimin,PAN Qinlin,ZHENG Ziqiao,LIU Zhiyi(College of Material Science and Engineering, Central South University, Changsha 410083, China)  
Possessing high strength and toughness, ultra high strength aluminum alloy is a kind of structural material with light weight and high strength, which can be applied widely in the aviation and aerospace fields. Based on a tremendous amount of data and some experiments by the researching group, this paper introduces the development and applications of ultra high strength aluminum alloys, and discusses the addition, existential form and functioning mechanism of such compositions as Zn, Mg, Cu and Zr. Comparing and analyzing a number of data, the thesis discusses the microstructural mode corresponding to the best properties. Additionally, three main aging treatments and two successful stress corrosion resistance models are also reviewed in this paper. In the end, aiming at the existing problems of the present study, the paper puts some suggestions for the future exploration of the high strength aluminum alloys.
【Fund】: 国家"863"高新技术研究项目(2001AA332030)
【CateGory Index】: TG146.2
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