Abstract
The large specific surface area of Cu foam was used to manufacture the high-quality of graphene without crystal defects, and the graphene-reinforced Cu foam (G-Cu) was introduced as an interlayer to join C/C composites and titanium alloy. The foam net structure enabled the molten filler to flow into its pores, reduced the aggregation of Ag-based solid solution, promoted the uniform, and dispersed distribution of various phases. Results showed that the joint shear strength with G-Cu foam interlayer reached 50 MPa, which was twice about directly brazed joint. Due to the isolation and protection of the graphene film, the three-dimensional skeleton structure of foam kept intact, and the ability to relieve residual stress was more fully utilized, thereby further improving the brazed joint strength.
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The data used to support the findings of this study are available from the corresponding author upon request.
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The authors gratefully acknowledge the financial support from the Defense Industrial Technology Development Program (JCKY2023601C018).
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Zhu, Y., Zhang, Y., Li, K. et al. Dual optimization of energy-absorbing intermediate layer for diversified enhancement of heterogeneous brazed joints. Weld World (2024). https://doi.org/10.1007/s40194-024-01705-9
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DOI: https://doi.org/10.1007/s40194-024-01705-9