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Geometric and Chemical Composition Effects on Healing Kinetics of Voids in Mg-bearing Al Alloys
Song, Miao; Du, Kui; Wang, Chunyang; Wen, Shengping; Huang, Hui; Nie, Zuoren; Ye, Hengqiang; Du, K (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
2016-05-01
Source PublicationMETALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
ISSN1073-5623
Volume47AIssue:5Pages:2410-2420
AbstractThe healing kinetics of nanometer-scale voids in Al-Mg-Er and Al-Mg-Zn-Er alloy systems were investigated with a combination of in situ transmission electron microscopy and electron tomography at different temperatures. Mg was observed completely healing the voids, which were then rejuvenated to the alloy composition with further aging, in the Al-Mg-Er alloy. On the contrary, Mg51Zn20 intermetallic compound was formed in voids in the Al-Mg-Zn-Er alloy, which leads to complete filling of the voids but not rejuvenation for the material. For voids with different geometrical aspects, different evolution processes were observed, which are related to the competition between bulk and surface diffusion of the alloys. For voids with a large size difference in their two ends, a viscous flow of surface atoms can be directly observed with in situ electron microscopy, when the size of one end becomes less than tens of nanometers. (C) The Minerals, Metals & Materials Society and ASM International 2016
description.department[song, miao ; du, kui ; wang, chunyang ; ye, hengqiang] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china ; [wen, shengping ; huang, hui ; nie, zuoren] beijing univ technol, sch mat sci & engn, beijing 100022, peoples r china
Subject AreaMaterials Science ; Metallurgy & Metallurgical Engineering
Funding OrganizationSpecial Funds for the Major State Basic Research Projects of China [2012CB619503]; Natural Sciences Foundation of China [51390473, 51521091, 11332010]
Indexed Bysci
Language英语
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/75897
Collection中国科学院金属研究所
Corresponding AuthorDu, K (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China.
Recommended Citation
GB/T 7714
Song, Miao,Du, Kui,Wang, Chunyang,et al. Geometric and Chemical Composition Effects on Healing Kinetics of Voids in Mg-bearing Al Alloys[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,2016,47A(5):2410-2420.
APA Song, Miao.,Du, Kui.,Wang, Chunyang.,Wen, Shengping.,Huang, Hui.,...&Du, K .(2016).Geometric and Chemical Composition Effects on Healing Kinetics of Voids in Mg-bearing Al Alloys.METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE,47A(5),2410-2420.
MLA Song, Miao,et al."Geometric and Chemical Composition Effects on Healing Kinetics of Voids in Mg-bearing Al Alloys".METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE 47A.5(2016):2410-2420.
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