Recent progress in development of tungsten-copper composites: Fabrication, modification and applications

Dong, Longlong; Ahangarkani, M.; Chen, W.G.; Zhang, Y.S.

doi:10.1016/j.ijrmhm.2018.03.014

Cited by 133 publications

(75 citation statements)

References 86 publications

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“…Compared to the conventional pure metals (such as Cu, Al, Mg and Ti) and their alloys, metal matrix composites (MMCs) have attracted great interest in recent years owing to their excellent physical/mechanical properties (including high strength and elastic modulus, high hardness, good wear resistance, and good thermal/ electrical properties) [1][2][3][4][5][6][7][8][9][10]. For examples, Cu matrix composites are preferred for electrical and tribological applications owing to their good electrical and thermal conductivities [11][12][13], whereas Al matrix composites are extensively used in aerospace and automotive industries due to their relatively low density and good workability [2,[14][15].…”

Section: Introductionmentioning

confidence: 99%

Carbonaceous nanomaterial reinforced Ti-6Al-4V matrix composites: Properties, interfacial structures and strengthening mechanisms

Dong

et al. 2020

Carbon

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110

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Section: Introductionmentioning

confidence: 99%

Carbonaceous nanomaterial reinforced Ti-6Al-4V matrix composites: Properties, interfacial structures and strengthening mechanisms

Dong

et al. 2020

Carbon

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110

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“…Tungsten-copper (W–Cu) composite is a pseudo-alloy, which is highly promising for a wide array of applications, such as electrical contact materials, resistance welding, electrical discharge machining (EDM), plasma electrode materials, electrothermal alloys, etc. Due to its high melting point and hardness of W and high electrical and thermal conductivity of Cu, W–Cu composites render excellent for erosion resistance, fusion welding resistance, high strength, and high hardness [ 1 , 2 , 3 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Pulse Current Forward-Reverse Duty Cycle on Structure and Performance of Electroplated W–Cu Composite Coatings

Zhao

Zhuo

et al. 2021

Materials

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Tungsten-copper (W–Cu) composites are widely used as electrical contact materials, resistance welding, electrical discharge machining (EDM), and plasma electrode materials due to their excellent arc erosion resistance, fusion welding resistance, high strength, and superior hardness. However, the traditional preparation methods pay little attention to the compactness and microstructural uniformity of W–Cu composites. Herein, W–Cu composite coatings are prepared by pulse electroplating using nano-W powder as raw material and the influence of forward-reverse duty cycle of pulse current on the structure and mechanical properties is systematically investigated. Moreover, the densification mechanism of the W–Cu composite coating is analyzed from the viewpoints of forward-pulse plating and reverse-pulse plating. At the current density (J) of 2 A/dm2, frequency (f) of 1500 Hz, forward duty cycle (df) of 40% and reverse duty cycle (dr) of 10%, the W–Cu composite coating rendered a uniform microstructure and compact structure, resulting in a hardness of 127 HV and electrical conductivity of 53.7 MS/m.

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“…Hence it is required to go for the concept of addition of second reinforcement material called hybrid composite material [25] in Cu-FA for enhancing the material properties. Among the various choice of second reinforcement materials such as Ti, TiO 2 , B 4 C, WC, etc, W is considered to be one of the most attractive materials [26] as it finds much application in electronic, aerospace and defense field. Hence W was chosen as secondary reinforcement material for this study.…”

Section: Introductionmentioning

confidence: 99%

Investigation and characterization of Copper-Fly ash-Tungsten hybrid composites synthesized through P/M process

Rajan

Balaji

Raghav

et al. 2020

Mater. Res. Express

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This research paper describes the enhancement of mechanical, wear and corrosion behaviour of the Copper (Cu) matrix composite by reinforcing Fly ash (FA) and Tungsten (W). The main objective of this study was to reduce the weight and cost of the hybrid composites. The weight percentage of low density material (FA) was kept constant at 6% and samples were prepared by the addition of W in weight percentages of 3, 6 and 9 in the Cu matrix. The characterization of the hybrid composites was studied using a Scanning Electron Microscope (SEM) and Energy-dispersive spectroscopy (EDS). The micrographs revealed the uniform distribution of W and FA in the Cu matrix. From the mechanical characterization, it was identified that there is an increase in microhardness and compressive strength with the addition of W particles. It can be understood that the W particles occupy substitutional type reinforcement and FA particles occupy interstitial type reinforcement in the Cu matrix. The Wear behavior and its mechanism were studied using worn surface SEM micrographs. It was observed that the lowest specific wear rate was recorded for the hybrid composition of Cu-6FA-6W. Electrochemical polarization test and Electrochemical Impedance Spectroscopy (EIS) study revealed that Cu-6FA-9W shows higher corrosion resistance in both 1 N HCl (256.593×10 −4 Ω cm 2 ) and seawater media (219.855×10 −4 Ω cm 2 ) than pure Cu.

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Recent progress in development of tungsten-copper composites: Fabrication, modification and applications

Cited by 133 publications

References 86 publications

Carbonaceous nanomaterial reinforced Ti-6Al-4V matrix composites: Properties, interfacial structures and strengthening mechanisms

Carbonaceous nanomaterial reinforced Ti-6Al-4V matrix composites: Properties, interfacial structures and strengthening mechanisms

Influence of Pulse Current Forward-Reverse Duty Cycle on Structure and Performance of Electroplated W–Cu Composite Coatings

Investigation and characterization of Copper-Fly ash-Tungsten hybrid composites synthesized through P/M process

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