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- Title
Insight into the Microstructure and Tensile Behavior of the W–Cu Composite Reinforced with Tungsten Fibers and Particulates.
- Authors
Zhuo, Longchao; Wang, Hailiang; Luo, Bin; Zhang, Yiheng; Xu, Jintao; Liang, Shuhua; Zhang, Qiqi; Liu, Nan; Sun, Jiacheng
- Abstract
Herein, the microstructure and tensile property of the tungsten fiber (Wf)‐reinforced W–Cu composite are investigated by both experimental and simulation methods. An electron backscattering diffraction (EBSD) analysis reveals the elongated <110> textured grains in the Wf compared with the matrix part, ensuring the small quantities of the grain boundaries along the direction perpendicular to the tensile direction. Tensile tests further confirm its improved strength by ≈8.0% (526.8 ± 5.3 MPa) compared with the composite without inserted Wf, with a satisfactory tensile strain of 5.9 ± 0.3%. Based on the fractography observation and finite‐element analysis, typically stable energy dissipation behavior of the composite is considered to be ascribed to the interactive competition between complex fracture modes, including frictional fiber pullout, elastic bridging, interface debonding, and crack deflection.
- Subjects
FIBROUS composites; ELECTRON backscattering; MICROSTRUCTURE; TUNGSTEN alloys; CRYSTAL grain boundaries; ELECTRON diffraction
- Publication
Advanced Engineering Materials, 2020, Vol 22, Issue 11, p1
- ISSN
1438-1656
- Publication type
Article
- DOI
10.1002/adem.202000502