Interface-dependent failure behaviors in graphene nanoflakes reinforced Ti matrix composites

X. N. Mu; P. W. Chen; H. M. Zhang; X. W. Cheng; L. Liu; Y. X. Ge

doi:10.1016/j.matlet.2021.129422

Interface-dependent failure behaviors in graphene nanoflakes reinforced Ti matrix composites

X. N. Mu^*, P. W. Chen, H. M. Zhang, X. W. Cheng, L. Liu, Y. X. Ge

^*此作品的通讯作者

材料学院

Beijing Institute of Technology

科研成果: 期刊稿件 › 文章 › 同行评审

19 引用（Scopus）

摘要

This study aims to explain the failure mechanism of graphene nanoflakes/titanum (GNFs/Ti) composites with physical and chemical bonded interface. Formation of suitable titanium carbides (TiC) by interfacial chemical reaction is a promising approach for the interface bonding enhancement. We find that nano-TiC layer (consists of multi-sized grains) will simultaneously accumulate abundant dislocations on TiC/Ti interface and store the micro-cracks on GNFs-TiC interface, which greatly improve the strength and failure tolerance compared with physical-bonding interface. Tensile tests show that the interface chemical bonding lead to the excellent combination of high strength (849 MPa) and well ductility (a superior elongation of 20%) in 0.23 vol% GNFs/Ti composites.

源语言	英语
文章编号	129422
期刊	Materials Letters
卷	289
DOI	https://doi.org/10.1016/j.matlet.2021.129422
出版状态	已出版 - 15 4月 2021

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Mu, X. N., Chen, P. W., Zhang, H. M., Cheng, X. W., Liu, L., & Ge, Y. X. (2021). Interface-dependent failure behaviors in graphene nanoflakes reinforced Ti matrix composites. Materials Letters, 289, 文章 129422. https://doi.org/10.1016/j.matlet.2021.129422

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title = "Interface-dependent failure behaviors in graphene nanoflakes reinforced Ti matrix composites",

abstract = "This study aims to explain the failure mechanism of graphene nanoflakes/titanum (GNFs/Ti) composites with physical and chemical bonded interface. Formation of suitable titanium carbides (TiC) by interfacial chemical reaction is a promising approach for the interface bonding enhancement. We find that nano-TiC layer (consists of multi-sized grains) will simultaneously accumulate abundant dislocations on TiC/Ti interface and store the micro-cracks on GNFs-TiC interface, which greatly improve the strength and failure tolerance compared with physical-bonding interface. Tensile tests show that the interface chemical bonding lead to the excellent combination of high strength (849 MPa) and well ductility (a superior elongation of 20%) in 0.23 vol% GNFs/Ti composites.",

keywords = "Carbon materials, Graphene, Mechanical properties, Metallic composites",

author = "Mu, {X. N.} and Chen, {P. W.} and Zhang, {H. M.} and Cheng, {X. W.} and L. Liu and Ge, {Y. X.}",

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T1 - Interface-dependent failure behaviors in graphene nanoflakes reinforced Ti matrix composites

AU - Mu, X. N.

AU - Chen, P. W.

AU - Zhang, H. M.

AU - Cheng, X. W.

AU - Liu, L.

AU - Ge, Y. X.

PY - 2021/4/15

Y1 - 2021/4/15

N2 - This study aims to explain the failure mechanism of graphene nanoflakes/titanum (GNFs/Ti) composites with physical and chemical bonded interface. Formation of suitable titanium carbides (TiC) by interfacial chemical reaction is a promising approach for the interface bonding enhancement. We find that nano-TiC layer (consists of multi-sized grains) will simultaneously accumulate abundant dislocations on TiC/Ti interface and store the micro-cracks on GNFs-TiC interface, which greatly improve the strength and failure tolerance compared with physical-bonding interface. Tensile tests show that the interface chemical bonding lead to the excellent combination of high strength (849 MPa) and well ductility (a superior elongation of 20%) in 0.23 vol% GNFs/Ti composites.

AB - This study aims to explain the failure mechanism of graphene nanoflakes/titanum (GNFs/Ti) composites with physical and chemical bonded interface. Formation of suitable titanium carbides (TiC) by interfacial chemical reaction is a promising approach for the interface bonding enhancement. We find that nano-TiC layer (consists of multi-sized grains) will simultaneously accumulate abundant dislocations on TiC/Ti interface and store the micro-cracks on GNFs-TiC interface, which greatly improve the strength and failure tolerance compared with physical-bonding interface. Tensile tests show that the interface chemical bonding lead to the excellent combination of high strength (849 MPa) and well ductility (a superior elongation of 20%) in 0.23 vol% GNFs/Ti composites.

KW - Carbon materials

KW - Graphene

KW - Mechanical properties

KW - Metallic composites

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VL - 289

JO - Materials Letters

JF - Materials Letters

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Interface-dependent failure behaviors in graphene nanoflakes reinforced Ti matrix composites

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