INVESTIGATION OF POST-COLD ROLLING AGING PROCESSES ON SOLUTIONIZED 7050 ALUMINUM ALLOY

doi:10.3724/SP.J.1037.2009.00723

IMR OpenIR

	INVESTIGATION OF POST-COLD ROLLING AGING PROCESSES ON SOLUTIONIZED 7050 ALUMINUM ALLOY
	Wang Dong; Ma Zongyi
通讯作者	Ma Zongyi(zyma@imr.ac.cn)
	2010-05-11
发表期刊	ACTA METALLURGICA SINICA
ISSN	0412-1961
卷号	46 期号:5 页码:581-588
摘要	7050 aluminum alloy samples were subjected to 67% cold rolling (CR) deformation after solution treatment, and then were aged at 120 degrees C. The dislocations introduced by the CR, increased the strength of the samples. The strength of the sample aged at 120 degrees C for 4 h (CR4) increased by 12.6% compared to that of T6 sample. The strength of the 7050 samples decreased with increasing the aging time due to the coarsening of heterogeneously-nucleated precipitates. However, the strength of the sample aged at 120 degrees C for 32 h is still higher than that of the T6 sample. Furthermore, the size and particle interval of the grain boundary precipitates increased as the aging time increased. The CR4 sample was aged at 165 degrees C for different times. The strength of the samples decreased with increasing the aging time due to the annihilation of dislocations and the growth of the precipitates. The strength of the sample aged at 165 degrees C for 6 h is similar to that of T76 sample. In the CR4 sample aged at 135-180 degrees C for 1 h, the number of dislocations reduced and the size of precipitates increased with increasing the temperature, which results in a decrease in the strength of the samples.
关键词	7050 aluminum alloy cold rolling aging process mechanical property microstructure
资助者	National Basic Research Program of China
DOI	10.3724/SP.J.1037.2009.00723
收录类别	SCI
语种	英语
资助项目	National Basic Research Program of China[2005CB623708]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000278475200010
出版者	SCIENCE CHINA PRESS
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/321006/102074
专题	中国科学院金属研究所
通讯作者	Ma Zongyi
作者单位	Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang Dong,Ma Zongyi. INVESTIGATION OF POST-COLD ROLLING AGING PROCESSES ON SOLUTIONIZED 7050 ALUMINUM ALLOY[J]. ACTA METALLURGICA SINICA,2010,46(5):581-588.
APA	Wang Dong,&Ma Zongyi.(2010).INVESTIGATION OF POST-COLD ROLLING AGING PROCESSES ON SOLUTIONIZED 7050 ALUMINUM ALLOY.ACTA METALLURGICA SINICA,46(5),581-588.
MLA	Wang Dong,et al."INVESTIGATION OF POST-COLD ROLLING AGING PROCESSES ON SOLUTIONIZED 7050 ALUMINUM ALLOY".ACTA METALLURGICA SINICA 46.5(2010):581-588.