An experimental study of Mg aggregation in AA5754 alloys by positron annihilation spectroscopy

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	An experimental study of Mg aggregation in AA5754 alloys by positron annihilation spectroscopy
	C. H. Huang; L. Ma; Z. Q. Chen; Z. Wang; X. W. Wang; H. Y. Zhang
	2007
发表期刊	Chinese Physics Letters
ISSN	0256-307X
卷号	24 期号:2 页码:546-548
摘要	Defects in an AA5754 (Al-3.0%Mg) alloy are investigated by coincidence Doppler broadening spectroscopy and positron lifetime spectroscopy. The results indicate enhancement of positron trapping by Mg atoms in this Al-Mg alloy after quenching treatment at 623K, which may be due to the formation of vacancy-Mg complexes or the aggregation of Mg near the vacancy sites. It is speculated that the aggregation of Mg atoms in the moderate temperature range is responsible for cracking in spot welding of AA5754 alloys.
部门归属	wuhan univ, dept phys, wuhan 430072, peoples r china. wuhan univ, hubei nucl solid phys key lab, wuhan 430072, peoples r china. chinese acad sci, shenyang natl lab mat sci, met res inst, shenyang 110016, peoples r china. univ toledo, dept mime, toledo, oh 43606 usa.;huang, ch (reprint author), wuhan univ, dept phys, wuhan 430072, peoples r china;mali@positron.whu.ac.cn
关键词	Aluminum Cracking Metals
URL	查看原文
WOS记录号	WOS:000244116400068
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33593
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	C. H. Huang,L. Ma,Z. Q. Chen,et al. An experimental study of Mg aggregation in AA5754 alloys by positron annihilation spectroscopy[J]. Chinese Physics Letters,2007,24(2):546-548.
APA	C. H. Huang,L. Ma,Z. Q. Chen,Z. Wang,X. W. Wang,&H. Y. Zhang.(2007).An experimental study of Mg aggregation in AA5754 alloys by positron annihilation spectroscopy.Chinese Physics Letters,24(2),546-548.
MLA	C. H. Huang,et al."An experimental study of Mg aggregation in AA5754 alloys by positron annihilation spectroscopy".Chinese Physics Letters 24.2(2007):546-548.