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Author:

Wang, Y. (Wang, Y..) | Sun, Y. (Sun, Y..) | Han, T. (Han, T..) | Zhao, Z. (Zhao, Z..) | Hou, C. (Hou, C..) | Li, Y. (Li, Y..) | Song, X. (Song, X..)

Indexed by:

EI Scopus SCIE

Abstract:

Conventional tungsten-copper (W-Cu) composites typically exhibit a homogeneous distribution of tungsten phase. However, there usually exists an trade-off between their mechanical properties and conductivity, thereby significantly limiting their potential applications. In this study, a novel approach was proposed to concurrently enhance the compressive strength, wear resistance, and electrical conductivity by constructing a layered hierarchical structure consisting of alternating copper layers and nano W-Cu layers. Compared with the uniform-structured W-Cu, it was found that the layered hierarchical W-Cu had an enhanced stress partitioning of the tungsten phase and a more concentrated distribution of current density in the copper layer. This resulted in improvements in both strength and conductivity. Furthermore, the development of a homogeneous oxide mixture layer on the wear scar surface contributes to a reduction in friction coefficient. When combined with the exceptional strength of the nanostructured W-Cu layer, the wear resistance of the layered hierarchical W-Cu was enhanced. This study highlights the pivotal role of multilevel structural design in development of high-performance bimetallic composites. © 2025 Elsevier Ltd

Keyword:

Nanocomposite Wear Heterostructure Finite element simulation Metal matrix composites

Author Community:

  • [ 1 ] [Wang Y.]College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing, 100124, China
  • [ 2 ] [Sun Y.]College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing, 100124, China
  • [ 3 ] [Han T.]College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing, 100124, China
  • [ 4 ] [Zhao Z.]College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing, 100124, China
  • [ 5 ] [Hou C.]College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing, 100124, China
  • [ 6 ] [Li Y.]College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing, 100124, China
  • [ 7 ] [Song X.]College of Materials Science and Engineering, Key Laboratory of Advanced Functional Materials, Ministry of Education of China, Beijing University of Technology, Beijing, 100124, China

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Source :

Composite Structures

ISSN: 0263-8223

Year: 2025

Volume: 357

6 . 3 0 0

JCR@2022

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 9

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