Interface evolution and superior tensile properties of multi-layer graphene reinforced pure Ti matrix composite

Mu, Xiaonan; Cai, Houzhi; Zhang, H.M.; Fan, Qunbo; Zhang, Zhao Hui; Wu, Yong-Chao; Ge, Y.X.; Wang, D.D.

doi:10.1016/j.matdes.2017.12.016

Cited by 107 publications

(24 citation statements)

References 51 publications

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“…The TiC reaction layers are tightly bound to the matrix and GO, respectively, which may be helpful to improve the load transfer ability. Mu et al [ 19 ] reported the similar phenomenon of graphene coated with TiC in graphene-reinforced pure titanium-matrix composite fabricated by SPS.…”

Section: Resultsmentioning

confidence: 92%

“…The outstanding mechanical properties of GO can support higher loads, thus improving the strength of composites. The shear–lag model is usually used to estimate the strength of titanium-matrix composites [ 19 ]. The yield strength ( σ c ) can be expressed as:

where σ m is the yield strength of composite matrix, V r is the volume fraction of GO, σ r is the fracture strength of GO (24.7 GPa [ 41 ]), l and l c are length and critical length of GO, respectively.…”

Section: Discussionmentioning

confidence: 99%

“…Liu et al [ 17 ] reported that the 400 °C compressive yield strength and ultimate compressive strength of 0.25 wt% graphene/pure Ti composite fabricated by BM and SPS increased by 43% and 37%, respectively. Mu et al [ 18 , 19 ] investigated the mechanical properties of graphene/pure Ti composites produced by BM, SPS and hot rolling. The composite with 0.2 wt% graphene had the highest yield strength of 1010 MPa and tensile strength of 1045 MPa.…”

Section: Introductionmentioning

confidence: 99%

“…However, graphene-reinforced Ti-matrix composites are mainly focused on pure Ti [ 16 , 17 , 18 , 19 , 20 , 24 ], Ti6Al4V [ 26 , 27 , 28 ] and TiAl [ 29 ] so far. Very little attention was paid on the influence of graphene or GO on microstructure and mechanical properties (especially tensile properties at high temperature) of high-temperature titanium alloys, which have complex microstructure evolution and high initial strength because of numerous solid solution elements.…”

Section: Introductionmentioning

confidence: 99%

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Microstructure and Tensile Properties of Graphene-Oxide-Reinforced High-Temperature Titanium-Alloy-Matrix Composites

Chen

et al. 2020

Materials

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In this study, graphene-oxide (GO)-reinforced Ti–Al–Sn–Zr–Mo–Nb–Si high-temperature titanium-alloy-matrix composites were fabricated by powder metallurgy. The mixed powders with well-dispersed GO sheets were obtained by temperature-controlled solution mixing, in which GO sheets adsorb on the surface of titanium alloy particles. Vacuum deoxygenating was applied to remove the oxygen-containing groups in GO, in order to reduce the introduction of oxygen. The compact composites with refined equiaxed and lamellar α phase structures were prepared by hot isostatic pressing (HIP). The results show that in-situ TiC layers form on the surface of GO and GO promotes the precipitation of hexagonal (TiZr)6Si3 particles. The composites exhibit significant improvement in strength and microhardness. The room-temperature tensile strength, yield strength and microhardness of the composite added with 0.3 wt% GO are 9%, 15% and 27% higher than the matrix titanium alloy without GO, respectively, and the tensile strength and yield strength at 600 °C are 3% and 21% higher than the matrix alloy. The quantitative analysis indicates that the main strengthening mechanisms are load transfer strengthening, grain refinement and (TiZr)6Si3 s phase strengthening, which accounted for 48%, 30% and 16% of the improvement of room-temperature yield strength, respectively.

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Section: Resultsmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Microstructure and Tensile Properties of Graphene-Oxide-Reinforced High-Temperature Titanium-Alloy-Matrix Composites

Chen

et al. 2020

Materials

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“…The main applications of those nanocomposites, including their use as photo-catalysts, and in transformation materials, biosensors, energy storage, and so on. Those metal matrix nanocomposites consist of Ag-doped graphene-silver matrix nanocomposites [194], graphene (3D-GNs)–Ni nanocomposites [195], graphene (MLG)–Ti nanocomposites [196], graphene (GNPs)–Inconel 718 [197], graphene (MLG)–Ni 3 Al alloy [198], graphene–Fe [184], GNNs–Ag–Cu–Ti nanocomposites [199] and others. Some characteristics of those graphene-metal matrix nanocomposites are summarized in Table 9.…”

Section: Metal Matrix Nanocomposites Reinforced By Graphenementioning

confidence: 99%

An Overview of the Recent Developments in Metal Matrix Nanocomposites Reinforced by Graphene

2019

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Two-dimensional graphene plateletes with unique mechanical, electrical and thermo-physical properties could attract more attention for their employed as reinforcements in the production of new metal matrix nanocomposites (MMNCs), due to superior characteristics, such as being lightweight, high strength and high performance. Over the last years, due to the rapid advances of nanotechnology, increasing demand for the development of advanced MMNCs for various applications, such as structural engineering and functional device applications, has been generated. The purpose of this work is to review recent research into the development in the powder-based production, property characterization and application of magnesium, aluminum, copper, nickel, titanium and iron matrix nanocomposites reinforced with graphene. These include a comparison between the properties of graphene and another well-known carbonaceous reinforcement (carbon nanotube), following by powder-based processing strategies of MMNCs above, their mechanical and tribological properties and their electrical and thermal conductivities. The effects of graphene distribution in the metal matrices and the types of interfacial bonding are also discussed. Fundamentals and the structure–property relationship of such novel nanocomposites have also been discussed and reported.

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Recent Advances in the Design and Fabrication of Strong and Ductile (Tensile) Titanium Metal Matrix Composites

et al. 2019

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Titanium metal matrix composites (TiMMCs) offer much improved strength, elastic modulus, and wear resistance at both room and elevated temperatures but often at the expense of tensile ductility, which excludes them from most key engineering applications. Recent advances show that this long-standing strength-ductility dilemma can be controlled to a large extent by adopting novel design concepts based on powder metallurgy (PM). These include: 1) reinforcing the Ti matrix with a three-dimensional (3D) network-like architecture of TiB whiskers or nanowires; 2) the use of nanostructured carbon precursors (nanotubes, fibers, and graphene) to enable in situ formation of TiC reinforcements; and 3) the exploitation of "ductility-detrimental" interstitial elements (O, N, H) for strengthening. On a laboratory scale, the fabricated TiMMCs all exhibit an excellent combination of tensile strength and elongation, comparable to, or even better than, solution-treated and aged (STA) wrought Ti-6Al-4V. The mechanisms behind these novel developments are analyzed. New insights into the design and fabrication of stronger and more ductile (tensile) TiMMCs are offered.

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Interface evolution and superior tensile properties of multi-layer graphene reinforced pure Ti matrix composite

Cited by 107 publications

References 51 publications

Microstructure and Tensile Properties of Graphene-Oxide-Reinforced High-Temperature Titanium-Alloy-Matrix Composites

Microstructure and Tensile Properties of Graphene-Oxide-Reinforced High-Temperature Titanium-Alloy-Matrix Composites

An Overview of the Recent Developments in Metal Matrix Nanocomposites Reinforced by Graphene

Recent Advances in the Design and Fabrication of Strong and Ductile (Tensile) Titanium Metal Matrix Composites

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