中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
High strength and thermal stability of bulk cu/ta nanolamellar multilayers fabricated by cross accumulative roll bonding

文献类型:期刊论文

Zeng, l. f.1,2; Gao, r.1; Fang, q. f.1,2; Wang, x. p.1; Xie, z. m.1,2; Miao, s.1,2; Hao, t.1; Zhang, t.1
SourceActa materialia
2016-05-15
Volume110Issue:Pages:341-351
KeywordNanolamellar multilayers Orientation relationships High-strength Cross accumulative roll bonding
DOI10.1016/j.actamat.2016.03.034
SubtypeArticle
English AbstractBulk cu/ta nanolamellar multilayers with an individual layer thickness from several micrometers down to 50 nm were successfully fabricated via a combination of cross accumulative roll bonding (carb) and an intermediate annealing step. this fabrication technique allowed to effectively suppress the formation of plastic instabilities and edge cracks during the repeated rolling process. a transition of the layered morphology from non-planar interfaces at the submicron level to nearly planar interfaces at the nano scale was observed with decreasing layer thickness. high resolution transmission electron microscopy, selected area electron diffraction and x-ray diffraction were performed, and the results indicate that the cu/ta nanolamellar multilayers with a layer thickness of 50 nm show a {100}(ta)[110]parallel to{110}(cu)[111] rolling texture relationship. tensile tests revealed that the ultimate tensile strength of the composite was up to 950 mpa, which is approximately 5 times higher than that of the initial pure cu and ta. the hardness of the prepared multilayer maintained unchanged even after an annealing at 500 degrees c for 1 h. these unique properties are attributed to an atomically flat bimetal interface and the low amount of homophase grain boundaries resulted from the carb process. (c) 2016 acta materialia inc. published by elsevier ltd. all rights reserved.
WOS KeywordSEVERE PLASTIC-DEFORMATION ; ULTRA-HIGH STRENGTH ; NANOLAYERED COMPOSITES ; MECHANICAL-PROPERTIES ; MICROSTRUCTURAL EVOLUTION ; TEXTURE EVOLUTION ; BIMETAL INTERFACES ; DIFFUSION BARRIER ; METAL COMPOSITES ; GRAIN-GROWTH
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
Language英语
WOS IDWos:000374810400034
Funding OrganizationNational Natural Science Foundation of China(11274305 ; National Natural Science Foundation of China(11274305 ; Anhui provincial Natural Science Foundation of China(1408085QE77) ; Anhui provincial Natural Science Foundation of China(1408085QE77) ; 11374299 ; 11374299 ; 11475216) ; 11475216) ; National Natural Science Foundation of China(11274305 ; National Natural Science Foundation of China(11274305 ; Anhui provincial Natural Science Foundation of China(1408085QE77) ; Anhui provincial Natural Science Foundation of China(1408085QE77) ; 11374299 ; 11374299 ; 11475216) ; 11475216)
Citation statistics
URIhttp://www.corc.org.cn/handle/1471x/1637119
Collection合肥物质科学研究院_中科院固体物理研究所
Affiliation1.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China
2.Univ Sci & Technol China, Hefei 230026, Peoples R China
Recommended Citation
GB/T 7714
Zeng, L. F.,Gao, R.,Fang, Q. F.,et al. High strength and thermal stability of bulk cu/ta nanolamellar multilayers fabricated by cross accumulative roll bonding[J]. Acta materialia,2016,110(无):341-351.
APA Zeng, L. F..,Gao, R..,Fang, Q. F..,Wang, X. P..,Xie, Z. M..,...&Zhang, T..(2016).High strength and thermal stability of bulk cu/ta nanolamellar multilayers fabricated by cross accumulative roll bonding.Acta materialia,110(无),341-351.
MLA Zeng, L. F.,et al."High strength and thermal stability of bulk cu/ta nanolamellar multilayers fabricated by cross accumulative roll bonding".Acta materialia 110.无(2016):341-351.

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