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- Title
In Situ Study on Fracture Behavior of Z-Pinned Carbon Fiber-Reinforced Aluminum Matrix Composite via Scanning Electron Microscope (SEM).
- Authors
Zhang, Yunhe; Wang, Sian; Zhao, Xiwang; Wang, Fanming; Wu, Gaohui
- Abstract
Inside a scanning electron microscope (SEM) chamber, we performed an in situ interlaminar shear test on a z-pinned carbon fiber-reinforced aluminum matrix composite (Cf/Al) fabricated by the pressure the infiltration method to understand its failure mechanism. Experiments show that introducing a stainless-steel z-pin increases the interlaminar shear strength of Cf/Al composite by 148%. The increase in interlaminar shear strength is attributed to the high strength of the stainless-steel z-pin and the strong bonding between the z-pin and the matrix. When the z-pin/matrix interface failed, the z-pin can still experience large shear deformation, thereby enhancing delamination resistance. The failure mechanism of composite includes interfacial debonding, aluminum plough, z-pin shear deformation, frictional sliding, and fracture. These results in this study will help us understand the interlaminar strengthening mechanism of z-pins in the delamination of metal matrix composites.
- Subjects
ALUMINUM composites; SCANNING electron microscopes; METALLIC composites; SHEAR strength; CARBON; DEBONDING
- Publication
Materials (1996-1944), 2019, Vol 12, Issue 12, p1941
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma12121941