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Enhancing strength-ductility synergy of carbon nanotube/7055Al composite via a texture design by hot -rolling
Bi, S.1,2; Liu, Z. Y.1; Xiao, B. L.1; Zan, Y. N.1,2; Wang, D.1; Wang, Q. Z.1; Ma, Z. Y.1
Corresponding AuthorLiu, Z. Y.(zyliu@imr.ac.cn)
2021-03-04
Source PublicationMATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
ISSN0921-5093
Volume806Pages:13
AbstractThe limited ductility of carbon nanotubes reinforced Al matrix (CNT/Al) composites hinders their engineering applications, which is an urgent problem to be solved. Herein, texture optimization through hot-rolling was employed to improve the strength-ductility of the CNT/7055Al composites. Microstructural examinations indicate that the composite subjected to extrusion (CNT/7055Al-E) had a bimodal structure with the coarse and ultrafine grains. The composite subjected to extrusion followed by hot-rolling (CNT/7055Al-ER) exhibited a uniform ultrafine grain structure. No further structure damage or aggregation was detected for the CNTs after hot-rolling. The texture analysis demonstrates that the CNT/7055Al-E had a 111 111 332 342 components with higher texture intensity. Compared with the CNT/7055Al-E, the CNT/7055Al-ER increased twofold in elongation with a slight decrease in strength, which was attributed to the favorable grain orientations, the increased proportion of low angle grain boundaries, as well as the fine and densely distributed precipitates. Further, the mechanical property anisotropy of the composite was weakened after hot-rolling due to the elimination of coarse grain bands.
KeywordAluminium matrix composites Carbon nanotubes Strength-ductility Texture Anisotropy
Funding OrganizationNational Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; National Key R&D Program of China ; Youth Innovation Promotion Association CAS
DOI10.1016/j.msea.2021.140830
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[51871215] ; National Natural Science Foundation of China[51931009] ; National Natural Science Foundation of China[51871214] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC015] ; National Key R&D Program of China[2017YFB0703104] ; Youth Innovation Promotion Association CAS[2020197]
WOS Research AreaScience & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000620947600003
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/160859
Collection中国科学院金属研究所
Corresponding AuthorLiu, Z. Y.
Affiliation1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, 72 Wenhua Rd, Shenyang 110016, Peoples R China
2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Peoples R China
Recommended Citation
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Bi, S.,Liu, Z. Y.,Xiao, B. L.,et al. Enhancing strength-ductility synergy of carbon nanotube/7055Al composite via a texture design by hot -rolling[J]. MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,2021,806:13.
APA Bi, S..,Liu, Z. Y..,Xiao, B. L..,Zan, Y. N..,Wang, D..,...&Ma, Z. Y..(2021).Enhancing strength-ductility synergy of carbon nanotube/7055Al composite via a texture design by hot -rolling.MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING,806,13.
MLA Bi, S.,et al."Enhancing strength-ductility synergy of carbon nanotube/7055Al composite via a texture design by hot -rolling".MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING 806(2021):13.
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