Different fatigue behavior between tension-tension and tension-compression of carbon nanotubes reinforced 7055 Al composite with bimodal structure.
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| Title: | Different fatigue behavior between tension-tension and tension-compression of carbon nanotubes reinforced 7055 Al composite with bimodal structure. |
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| Authors: | Bi, S.1,2 (AUTHOR), Liu, Z.Y.1 (AUTHOR) zyliu@imr.ac.cn, Xiao, B.L.1 (AUTHOR), Xue, P.1 (AUTHOR), Wang, D.1 (AUTHOR), Wang, Q.Z.1 (AUTHOR), Ni, D.R.1 (AUTHOR), Ma, Z.Y.1 (AUTHOR) |
| Source: | Carbon. Oct2021, Vol. 184, p364-374. 11p. |
| Subjects: | Composite structures, Carbon nanotubes, Aerospace industries, Aluminum composites |
| Abstract: | Understanding the fatigue behavior of Carbon nanotube (CNT) reinforced Al composites (CNT/Al) was of critical importance, for their further application in the aerospace industry. Although CNT could improve the fatigue performance, the fatigue behavior of CNT/Al composites with different structure (e.g. bimodal structure) under different fatigue conditions was still in lacking. In this study, the tension-tension/tension-compression fatigue behaviors of bimodal structure CNT/7055Al composites consisting of ultra-fine grain (UFG) zones rich of CNTs and coarse grain (CG) bands free of CNTs, were investigated and the corresponding damage mechanisms were analyzed. Results indicated that dislocation cells, tangles and subgrains were observed in the CGs, while no obvious dislocation configuration was detected in the UFGs after 107 fatigue cycles. Under the tension-tension fatigue condition, the fatigue strength of the composites was increased from 350 MPa to 400 MPa by load transfer effect of CNTs at 107 cycles. However, CNTs failed to improve the fatigue strength under the tension-compression fatigue condition due to the failure of the UFG zones rich of CNTs resulting from the high stress amplitude. It was found that strain localization in the CGs was the principal damage mechanism of CNT/7055Al composites. [Display omitted] [ABSTRACT FROM AUTHOR] |
| Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 152773995 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Different fatigue behavior between tension-tension and tension-compression of carbon nanotubes reinforced 7055 Al composite with bimodal structure. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Bi%2C+S%2E%22">Bi, S.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Z%2EY%2E%22">Liu, Z.Y.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zyliu@imr.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Xiao%2C+B%2EL%2E%22">Xiao, B.L.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xue%2C+P%2E%22">Xue, P.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+D%2E%22">Wang, D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Q%2EZ%2E%22">Wang, Q.Z.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ni%2C+D%2ER%2E%22">Ni, D.R.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Z%2EY%2E%22">Ma, Z.Y.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Carbon%22">Carbon</searchLink>. Oct2021, Vol. 184, p364-374. 11p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Composite+structures%22">Composite structures</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+nanotubes%22">Carbon nanotubes</searchLink><br /><searchLink fieldCode="DE" term="%22Aerospace+industries%22">Aerospace industries</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+composites%22">Aluminum composites</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Understanding the fatigue behavior of Carbon nanotube (CNT) reinforced Al composites (CNT/Al) was of critical importance, for their further application in the aerospace industry. Although CNT could improve the fatigue performance, the fatigue behavior of CNT/Al composites with different structure (e.g. bimodal structure) under different fatigue conditions was still in lacking. In this study, the tension-tension/tension-compression fatigue behaviors of bimodal structure CNT/7055Al composites consisting of ultra-fine grain (UFG) zones rich of CNTs and coarse grain (CG) bands free of CNTs, were investigated and the corresponding damage mechanisms were analyzed. Results indicated that dislocation cells, tangles and subgrains were observed in the CGs, while no obvious dislocation configuration was detected in the UFGs after 107 fatigue cycles. Under the tension-tension fatigue condition, the fatigue strength of the composites was increased from 350 MPa to 400 MPa by load transfer effect of CNTs at 107 cycles. However, CNTs failed to improve the fatigue strength under the tension-compression fatigue condition due to the failure of the UFG zones rich of CNTs resulting from the high stress amplitude. It was found that strain localization in the CGs was the principal damage mechanism of CNT/7055Al composites. [Display omitted] [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Carbon is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.carbon.2021.08.034 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 11 StartPage: 364 Subjects: – SubjectFull: Composite structures Type: general – SubjectFull: Carbon nanotubes Type: general – SubjectFull: Aerospace industries Type: general – SubjectFull: Aluminum composites Type: general Titles: – TitleFull: Different fatigue behavior between tension-tension and tension-compression of carbon nanotubes reinforced 7055 Al composite with bimodal structure. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Bi, S. – PersonEntity: Name: NameFull: Liu, Z.Y. – PersonEntity: Name: NameFull: Xiao, B.L. – PersonEntity: Name: NameFull: Xue, P. – PersonEntity: Name: NameFull: Wang, D. – PersonEntity: Name: NameFull: Wang, Q.Z. – PersonEntity: Name: NameFull: Ni, D.R. – PersonEntity: Name: NameFull: Ma, Z.Y. IsPartOfRelationships: – BibEntity: Dates: – D: 30 M: 10 Text: Oct2021 Type: published Y: 2021 Identifiers: – Type: issn-print Value: 00086223 Numbering: – Type: volume Value: 184 Titles: – TitleFull: Carbon Type: main |
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