Abstract
With the use of Ti/Ni/Cu/Ni multiple foils as interlayer, carbon/carbon (C/C) composite was bonded to Ni-based superalloy GH3044 by partial transient liquid-phase bonding technique. The effect of bonding temperature on the microstructures and strengths of the joints was investigated. The results showed that gradient structural multiple interlayers composed of "C-Ti reaction layer/Ti-Ni intermetallic compound layer/Ni-Cu sosoloid/residual Cu layer/Ni-GH3044 diffusion layer" were formed between C/C composite and GH3044. The shear strength of the C/C composite/GH3044 joint reached the highest value of 26.1 MPa when the bonding temperature was 1,030 °C. In addition, the fracture morphology showed that the fracture mode changed with the increase of bonding temperature.
| Original language | English |
|---|---|
| Pages (from-to) | 663-669 |
| Number of pages | 7 |
| Journal | Acta Metallurgica Sinica (English Letters) |
| Volume | 27 |
| Issue number | 4 |
| DOIs | |
| State | Published - Aug 2014 |
Keywords
- C/C composite
- Joint shear strength
- Microstructure
- Ni-based superalloy
- Partial transient liquid-phase bonding
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