A PAT study of influences of precipitation on defects and electronic density in Al-Li-Cu-Mg-Zr alloys

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	A PAT study of influences of precipitation on defects and electronic density in Al-Li-Cu-Mg-Zr alloys
	W. M. Wu ; Y. J. Gao ; L. X. Luo ; W. Deng ; S. J. Xu ; X. P. Zhong ; X. J. Jiang
刊名	Transactions of Nonferrous Metals Society of China
	1997
卷号	7 期号:1 页码:42-45
关键词	positron lifetime spectra Al-Li-Cu-Mg-Zr alloy ageing precipitation defects bulk electronic density positron
ISSN号	1003-6326
中文摘要	The positron annihilation lifetime spectra of an Al-Li-Cu-Mg-Zr alloy in the conditions of under-ageing, peak-ageing and over-ageing were measured. The results showed that the precipitation and growth of delta' (Al3Li) phase particles increased the bulk electronic density, while the precipitation of S' (Al2CuMg) phase particles decreased the bulk electronic density. A large number of vacancies were recovered during the peak-ageing process, which made the number of defects decreased. However, the number of defects increased after the over-ageing process, which was related to the precipitation of S' phase particles.
原文出处	://WOS:A1997XA99600010
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/38147]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	W. M. Wu,Y. J. Gao,L. X. Luo,et al. A PAT study of influences of precipitation on defects and electronic density in Al-Li-Cu-Mg-Zr alloys[J]. Transactions of Nonferrous Metals Society of China,1997,7(1):42-45.
APA	W. M. Wu.,Y. J. Gao.,L. X. Luo.,W. Deng.,S. J. Xu.,...&X. J. Jiang.(1997).A PAT study of influences of precipitation on defects and electronic density in Al-Li-Cu-Mg-Zr alloys.Transactions of Nonferrous Metals Society of China,7(1),42-45.
MLA	W. M. Wu,et al."A PAT study of influences of precipitation on defects and electronic density in Al-Li-Cu-Mg-Zr alloys".Transactions of Nonferrous Metals Society of China 7.1(1997):42-45.