Size effect of flake Ti powders on the mechanical properties in graphene nanoflakes/Ti fabricated by flake powder metallurgy

Mu, Xiaonan; Cai, Houzhi; Zhang, H.M.; Fan, Qunbo; Wang, F.C.; Cheng, Xingwang; Zhang, Zhao Hui; Li, J.B.; Jiao, Xiaoguang; Ge, Y.X.; Chang, Shuquan; Liu, L.; Liu, Yifan

doi:10.1016/j.compositesa.2019.04.027

Cited by 41 publications

(5 citation statements)

References 72 publications

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“…It is well known that the properties of metal matrix composites are closely related to the reinforcement and metal matrix. [ 34–36 ] Generally, the analysis of strength for the composites is related to the interaction between dislocations and hard particles. [ 37,38 ] In this work, TiC and intermetallic Ti 2 Co particles formed in the composites.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and Properties of Titanium Matrix Composites Synergistically Reinforced by Graphene Oxide and Alloying Elements

Zhao

et al. 2022

Adv Eng Mater

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In this work, the microstructure and mechanical properties of titanium matrix composites were tuned by introducing graphene and alloying elements. The titanium matrix composites reinforced by graphene oxide (GO) and cobalt elements (GO@ Co/TA1) are synthesized by the spark plasma sintering (SPS) technique. Results show that the precipitated Ti2Co phase is almost reticulate distributed in the tissue, while the in situ TiC particles are discontinuously distributed at the grain boundaries. The ultimate tensile strength and yield strength of GO@ Co/TA1 composites are 160% and 126% higher than those of pure TA1, respectively. In addition, composites show excellent ductility where the elongation of GO@Co/TA1 is around 10.95%. Therefore, such enhanced mechanical properties can be attributed to the synergistic strengthening effect of interfacial‐distributed TiC particles and intragranular‐distributed intermetallic compounds (Ti2Co), which would provide a new idea for the design of metal matrix composite.

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Section: Resultsmentioning

confidence: 99%

Microstructure and Properties of Titanium Matrix Composites Synergistically Reinforced by Graphene Oxide and Alloying Elements

Zhao

et al. 2022

Adv Eng Mater

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“…The shear hysteresis model is usually used to evaluate the strength of TMCs. The yield strength (σ c ) can be expressed as [20,33]…”

Section: Compression Propertiesmentioning

confidence: 99%

Microstructural and Mechanical Properties Characterization of Graphene Oxide-Reinforced Ti-Matrix Composites

Wan

Yang

et al. 2022

Coatings

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The 0.1–0.7 wt.% graphene oxide (GO)-reinforced Ti-matrix composites (TMCs) were prepared by the hot-pressed sintering method. The effects of GO content on the mechanical properties of TMCs were investigated. The microstructure of TMCs was analyzed. The results show that the microstructure of Ti and TMCs is equiaxed α. The average grain size of TMCs decreases with GO increasing. GO can react with Ti to form TiC at high temperatures. Meanwhile, GO is also presented in the matrix. The hardness of TMCs is higher than that of pure Ti. The maximum hardness is 320 HV, which is 43% higher than that of pure Ti. The yield strength of Ti-0.5 wt.% GO sintered at 1373 K is 1324 MPa, 77% more than pure Ti. The strengthening mechanism of TMCs is the fine-grained strengthening and the reinforcement that bear the stress from the matrix. The friction coefficient of Ti-0.3 wt.% GO sintered at 1373 K comes up to 0.50, which is reduced by 0.2 compared with pure Ti.

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“…Concluding from dazzling literatures, the microstructural characteristics which are formed during fabrication of GNP-Al composites and contributing to the enhanced mechanical property mainly include: (i) Grain refinement as indicated in figures 7(a)-(b): the embedding of graphene into Al matrix often leads to grain refinement, which is due to hindering effect of graphene on the atomic diffusion and dislocation movement during thermal/ mechanical processing, hence contributing to the enhanced mechanical property. The grain refinement effect induced via the incorporation of graphene is common in other metal matrix, such as GNP-Cu [83], GNP-Mg [90,95] and GNP-Ti [97]. (ii) Uniform distribution of graphene as shown in figures 7(c)-(d): the uniform distribution of graphene in Al matrix can make the best use of the large specific surface area of graphene, hence showing significantly higher mechanical property comparing with the CNT-Al matrix composites.…”

Section: Gnp-al Compositesmentioning

confidence: 99%

Recent advances in 2D graphene reinforced metal matrix composites

Chen¹,

Zhou²

2021

Nanotechnology

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The unique combination of excellent mechanical and functional properties makes graphene an ideal component for high-performance ‘smart’ composites, which are sensitive to thermal, optical, electrical and mechanical excitations, hence being potential in application of a range of sensors. It has confirmed that the addition of graphene into metal matrix can significantly enhance the mechanical property and deliver surprising functional properties. Thus, graphene reinforced metal matrix composites (GMMCs) have long been regarded as potential prospects of nanotechnology applications. Recently, researchers mainly focused on: (i) solving the interfacial issues and realizing controllable alignment of graphene in metal matrix to achieve optimal performance; (ii) reasonable designing of the microstructures basing on usage requirement and then fabricating via efficient technique. Thus, it is necessary to figure out key roles of microstructure in fabrication process, mechanical and multi-functional properties. This review consists of four parts: (i) fabrication process. The fabrication processes are firstly divided into three kinds basing on the different bonding nature between graphene and metal matrix. (ii) Mechanical property. The microstructural characteristics of metal matrix accompanying by the incorporation of graphene and their vital effects on mechanical properties of GMMCs are systematically summarized. (iii) Functional property. The crucial effects of microstructure on electrical and thermal properties are summarized. (iv) Prospect applications and future challenges. Application and challenges basing on the research status are discussed to provide useful directions for future exploration in related fields. All these four parts are discussed with a focus on key role of microstructure characteristics, which is instructive for the microstructures design and fabrication process optimization during academic researches and potential commercial applications.

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Size effect of flake Ti powders on the mechanical properties in graphene nanoflakes/Ti fabricated by flake powder metallurgy

Cited by 41 publications

References 72 publications

Microstructure and Properties of Titanium Matrix Composites Synergistically Reinforced by Graphene Oxide and Alloying Elements

Microstructure and Properties of Titanium Matrix Composites Synergistically Reinforced by Graphene Oxide and Alloying Elements

Microstructural and Mechanical Properties Characterization of Graphene Oxide-Reinforced Ti-Matrix Composites

Recent advances in 2D graphene reinforced metal matrix composites

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