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Formation of incoherent deformation twin boundaries in a coarse-grained Al-7Mg alloy
Jin, S. B.; Zhang, K.; Bjorge, R.; Tao, N. R.; Marthinsen, K.; Lu, K.; Li, Y. J.; Yanjun.Li@ntnu.no
2015
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Volume107Issue:9Pages:-
AbstractDeformation twinning has rarely been observed in coarse grained Al and its alloys except under some extreme conditions such as ultrahigh deformation strain or strain rates. Here, we report that a significant amount of Sigma 3 deformation twins could be generated in a coarse-grained Al-7Mg alloy by dynamic plastic deformation (DPD). A systematic investigation of the Sigma 3 boundaries shows that they are Sigma 3{112} type incoherent twin boundaries (ITBs). These ITBs have formed by gradual evolution from copious low-angle deformation bands through < 111 >-twist Sigma boundaries by lattice rotation. These findings provide an approach to generate deformation twin boundaries in high stacking fault energy metallic alloys. It is suggested that high solution content of Mg in the alloy and the special deformation mode of DPD played an important role in formation of the Sigma and ITBs. (C) 2015 AIP Publishing LLC.
description.department[jin, s. b. ; zhang, k. ; marthinsen, k. ; li, y. j.] norwegian univ sci & technol, dept mat sci & engn, n-7491 trondheim, norway ; [bjorge, r.] sintef mat & chem, n-7465 trondheim, norway ; [tao, n. r. ; lu, k.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china
Funding OrganizationResearch Council of Norway, under the FRINATEK project 'BENTMAT' [222173]
Indexed Bysci
Language英语
WOS IDWOS:000360926200022
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/74857
Collection中国科学院金属研究所
Corresponding AuthorYanjun.Li@ntnu.no
Recommended Citation
GB/T 7714
Jin, S. B.,Zhang, K.,Bjorge, R.,et al. Formation of incoherent deformation twin boundaries in a coarse-grained Al-7Mg alloy[J]. APPLIED PHYSICS LETTERS,2015,107(9):-.
APA Jin, S. B..,Zhang, K..,Bjorge, R..,Tao, N. R..,Marthinsen, K..,...&Yanjun.Li@ntnu.no.(2015).Formation of incoherent deformation twin boundaries in a coarse-grained Al-7Mg alloy.APPLIED PHYSICS LETTERS,107(9),-.
MLA Jin, S. B.,et al."Formation of incoherent deformation twin boundaries in a coarse-grained Al-7Mg alloy".APPLIED PHYSICS LETTERS 107.9(2015):-.
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