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Atomic-scale quasi in-situ TEM observation on the redistribution of alloying element Cu in a B4C/Al composite at the initial stage of corrosion
Zhou, Y. T.1; Zan, Y. N.1; Wang, Q. Z.2; Xiao, B. L.1; Ma, Z. Y.1; Ma, X. L.1
Corresponding AuthorZhou, Y. T.(ytzhou@imr.ac.cn) ; Ma, Z. Y.(zyma@imr.ac.cn)
2020-09-01
Source PublicationCORROSION SCIENCE
ISSN0010-938X
Volume174Pages:13
AbstractThe present study reports an atomic level quasi in-situ TEM observation of the redistribution of alloying element Cu in the corrosion process of a B4C-reinforced Al-Mg-Si-Cu composite. Cu atoms were found to combine with Mg and form a thin layer at the interfaces between the aluminum matrix and nano-reinforcements (i.e. Mg(Al)B-2 and Al3BC). Dealloying of the Cu/Mg-rich layer was revealed. The following decomposition of Mg(Al)B-2 resulted in narrow corrosion trenches forming around Mg(Al)B-2 and then the localized pitting of the matrix. In addition, the liberated Cu ions were then redeposited and formed noble Cu nano-particles upon cathodic Mg(Al)B-2 and B4C particles.
KeywordMetal matrix composites Aluminium TEM De-alloying Pitting corrosion Segregation
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; NSF of Liaoning Province ; research fund of SYNL
DOI10.1016/j.corsci.2020.108808
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[U1508216] ; NSF of Liaoning Province[20180551101] ; research fund of SYNL[L2019F15]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000569362400005
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/140550
Collection中国科学院金属研究所
Corresponding AuthorZhou, Y. T.; Ma, Z. Y.
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Zhou, Y. T.,Zan, Y. N.,Wang, Q. Z.,et al. Atomic-scale quasi in-situ TEM observation on the redistribution of alloying element Cu in a B4C/Al composite at the initial stage of corrosion[J]. CORROSION SCIENCE,2020,174:13.
APA Zhou, Y. T.,Zan, Y. N.,Wang, Q. Z.,Xiao, B. L.,Ma, Z. Y.,&Ma, X. L..(2020).Atomic-scale quasi in-situ TEM observation on the redistribution of alloying element Cu in a B4C/Al composite at the initial stage of corrosion.CORROSION SCIENCE,174,13.
MLA Zhou, Y. T.,et al."Atomic-scale quasi in-situ TEM observation on the redistribution of alloying element Cu in a B4C/Al composite at the initial stage of corrosion".CORROSION SCIENCE 174(2020):13.
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