Effects of reinforcing tungsten fibers and skeleton pre-sintering temperature on microstructure, mechanical and electrical properties of ultrafine-grained tungsten‑copper composites

Ji, Kaile; Zhang, Yiheng; Chen, Bingqing; Zhang, Qiqi; Xi, Aiying; Zhao, Zhao; Liu, Changgen; Sun, Jiacheng; Fang, De; Wang, Qinghao; Zhan, Mingrui; Zhuo, Longchao

doi:10.1016/j.ijrmhm.2022.105929

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…[ 93 ] The ultrafine‐grained (UFG) W fibers/W–Cu composites were prepared by Ji et al via skeleton presintering and infiltration, which exhibited the highest hardness of 659 HV 0.05 for W fibers and 267 HV 0.05 for W–Cu matrix, the highest compressive strength of 1004.6 MPa with pronounced deformation plasticity of 25.8%, as well as good electrical conductivity of 24.4% IACS and the highest electrical breakdown strength of 6.80 × 10 7 V m −1 . [ 94 ]…”

Section: Preparative Techniquesmentioning

confidence: 99%

Recent Advances in W–Cu Composites: A Review on the Fabrication, Application, Property, Densification, and Strengthening Mechanism

Zhang,

Yang,

Huang

et al. 2023

Adv Eng Mater

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Tungsten–copper (W–Cu) composite is a pseudoalloy prepared by powder metallurgy method with tungsten and copper as the main components, which are widely used in electrical contacts, electrical discharge machining electrodes, electronic packaging, aerospace, and military fields due to its good conductivity, thermal conductivity, high melting point, high electrical breakdown strength, low contact resistance, high welding resistance, and high heat resistance. Herein, the recent advances of W–Cu composites are reviewed systematically. First, the preparative techniques of W–Cu composites are introduced in detail, and their advantages and disadvantages are evaluated objectively. Second, an introduction of the main application fields and corresponding characteristics advantages for W–Cu composites are provided. Subsequently, the densification techniques and strengthening mechanisms and their effects on microstructure, mechanical properties, and physical properties of W–Cu composites are mainly discussed. Finally, based on a comprehensive review of W–Cu composites, its future development trends and potential research challenges are summarized and prospected.

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Section: Preparative Techniquesmentioning

confidence: 99%

Recent Advances in W–Cu Composites: A Review on the Fabrication, Application, Property, Densification, and Strengthening Mechanism

Zhang,

Yang,

Huang

et al. 2023

Adv Eng Mater

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show abstract

“…Therefore, both wear resistance and high-temperature characteristic are essential indicators for high-end applications of W–Cu composites [ 14 ]. However, most studies to date have mainly focused on investigating the hardness and strength of W–Cu composites at room temperature [ 15 , 16 , 17 , 18 , 19 , 20 , 21 ]. For the enhancement of wear resistance and high-temperature strength of W–Cu composites, grain refinement and second-phase strengthening are commonly used methods [ 22 , 23 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Grain Refinement on the Comprehensive Mechanical Performance of W–Cu Composites

et al. 2023

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W–Cu composites are commonly subjected to coupled multiple fields in service, which imposes high requirements on their overall performance. In this study, the ultrafine-grained W–Cu composite was fabricated using the combination of electroless plating and spark plasma sintering. The wear resistance and high-temperature compressive properties of the ultrafine-grained W–Cu composite were investigated and compared with those of the commercial coarse-grained counterpart. Moreover, the underlying strengthening and wear mechanisms were also discussed. Here we show that the ultrafine-grained W–Cu composite exhibits superior integrated mechanical performance, making it a potential alternative to commercial W–Cu composites.

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Regularities of Structure Formation During Friction Stir Processing of CuAl9Mn2 Copper Alloy with Addition of Tungsten Powder to the Surface Layer

et al. 2022

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Effects of reinforcing tungsten fibers and skeleton pre-sintering temperature on microstructure, mechanical and electrical properties of ultrafine-grained tungsten‑copper composites

Cited by 7 publications

References 28 publications

Recent Advances in W–Cu Composites: A Review on the Fabrication, Application, Property, Densification, and Strengthening Mechanism

Recent Advances in W–Cu Composites: A Review on the Fabrication, Application, Property, Densification, and Strengthening Mechanism

Effect of Grain Refinement on the Comprehensive Mechanical Performance of W–Cu Composites

Regularities of Structure Formation During Friction Stir Processing of CuAl9Mn2 Copper Alloy with Addition of Tungsten Powder to the Surface Layer

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