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INVESTIGATION OF POST-COLD ROLLING AGING PROCESSES ON SOLUTIONIZED 7050 ALUMINUM ALLOY
Wang Dong; Ma Zongyi
Corresponding AuthorMa Zongyi(zyma@imr.ac.cn)
2010-05-11
Source PublicationACTA METALLURGICA SINICA
ISSN0412-1961
Volume46Issue:5Pages:581-588
Abstract7050 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.
Keyword7050 aluminum alloy cold rolling aging process mechanical property microstructure
Funding OrganizationNational Basic Research Program of China
DOI10.3724/SP.J.1037.2009.00723
Indexed BySCI
Language英语
Funding ProjectNational Basic Research Program of China[2005CB623708]
WOS Research AreaMetallurgy & Metallurgical Engineering
WOS SubjectMetallurgy & Metallurgical Engineering
WOS IDWOS:000278475200010
PublisherSCIENCE CHINA PRESS
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/102074
Collection中国科学院金属研究所
Corresponding AuthorMa Zongyi
AffiliationChinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Peoples R China
Recommended Citation
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.
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