Enhanced strain-hardening capability in graphene nanoplatelets reinforced Ti composites through tailoring a novel three-dimensional interface structure

Liang Liu; Yunkai Li; Hongmei Zhang; Xingwang Cheng; Xiaonan Mu; Wei Lei

doi:10.1016/j.compositesa.2022.106892

Enhanced strain-hardening capability in graphene nanoplatelets reinforced Ti composites through tailoring a novel three-dimensional interface structure

Liang Liu, Yunkai Li, Hongmei Zhang^*, Xingwang Cheng, Xiaonan Mu, Wei Lei

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

31 Citations (Scopus)

Abstract

Graphene nanoplatelets reinforced titanium matrix (GNPs/Ti) composites usually exhibit high strength but have low uniform elongation. Such limited mechanical properties are not suitable for the structural applications and is dangerous during service. In this study, a cocklebur-inspired nanoengineering was employed for the three-dimensional (3D) interface design in GNPs reinforced Ti composites (contained trace TiB whiskers, abbreviated as GNPs-(TiBw)/Ti). The enhanced strain-hardening capacity of GNPs-(TiBw)/Ti composites were attributed to the superior interfacial strain accommodation, the stiffened interfacial shear resistance and the toughened TiC layers. This work distinguishes itself from previous studies of GNPs/Ti composites by emphasizing the role of 3D interface structure for regaining the strain-hardening capacity of nanostructured composites.

Original language	English
Article number	106892
Journal	Composites Part A: Applied Science and Manufacturing
Volume	156
DOIs	https://doi.org/10.1016/j.compositesa.2022.106892
Publication status	Published - May 2022

Keywords

A. Metal-matrix composites (MMCs)
B. Mechanical properties
C. Micro-mechanics
E. Sintering

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10.1016/j.compositesa.2022.106892

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title = "Enhanced strain-hardening capability in graphene nanoplatelets reinforced Ti composites through tailoring a novel three-dimensional interface structure",

abstract = "Graphene nanoplatelets reinforced titanium matrix (GNPs/Ti) composites usually exhibit high strength but have low uniform elongation. Such limited mechanical properties are not suitable for the structural applications and is dangerous during service. In this study, a cocklebur-inspired nanoengineering was employed for the three-dimensional (3D) interface design in GNPs reinforced Ti composites (contained trace TiB whiskers, abbreviated as GNPs-(TiBw)/Ti). The enhanced strain-hardening capacity of GNPs-(TiBw)/Ti composites were attributed to the superior interfacial strain accommodation, the stiffened interfacial shear resistance and the toughened TiC layers. This work distinguishes itself from previous studies of GNPs/Ti composites by emphasizing the role of 3D interface structure for regaining the strain-hardening capacity of nanostructured composites.",

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author = "Liang Liu and Yunkai Li and Hongmei Zhang and Xingwang Cheng and Xiaonan Mu and Wei Lei",

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AU - Liu, Liang

AU - Li, Yunkai

AU - Zhang, Hongmei

AU - Cheng, Xingwang

AU - Mu, Xiaonan

AU - Lei, Wei

PY - 2022/5

Y1 - 2022/5

N2 - Graphene nanoplatelets reinforced titanium matrix (GNPs/Ti) composites usually exhibit high strength but have low uniform elongation. Such limited mechanical properties are not suitable for the structural applications and is dangerous during service. In this study, a cocklebur-inspired nanoengineering was employed for the three-dimensional (3D) interface design in GNPs reinforced Ti composites (contained trace TiB whiskers, abbreviated as GNPs-(TiBw)/Ti). The enhanced strain-hardening capacity of GNPs-(TiBw)/Ti composites were attributed to the superior interfacial strain accommodation, the stiffened interfacial shear resistance and the toughened TiC layers. This work distinguishes itself from previous studies of GNPs/Ti composites by emphasizing the role of 3D interface structure for regaining the strain-hardening capacity of nanostructured composites.

AB - Graphene nanoplatelets reinforced titanium matrix (GNPs/Ti) composites usually exhibit high strength but have low uniform elongation. Such limited mechanical properties are not suitable for the structural applications and is dangerous during service. In this study, a cocklebur-inspired nanoengineering was employed for the three-dimensional (3D) interface design in GNPs reinforced Ti composites (contained trace TiB whiskers, abbreviated as GNPs-(TiBw)/Ti). The enhanced strain-hardening capacity of GNPs-(TiBw)/Ti composites were attributed to the superior interfacial strain accommodation, the stiffened interfacial shear resistance and the toughened TiC layers. This work distinguishes itself from previous studies of GNPs/Ti composites by emphasizing the role of 3D interface structure for regaining the strain-hardening capacity of nanostructured composites.

KW - A. Metal-matrix composites (MMCs)

KW - B. Mechanical properties

KW - C. Micro-mechanics

KW - E. Sintering

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Enhanced strain-hardening capability in graphene nanoplatelets reinforced Ti composites through tailoring a novel three-dimensional interface structure

Abstract

Keywords

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