Abstract
The hollow four-layer structure of Ti-22Al-27Nb alloy was fabricated by SPF/DB process. The characteristics and mechanism of Ti-22Al-27Nb alloy with respect to superplasticity and diffusion bonding were investigated. Tensile tests show that the optimal elongation of tensile specimens is 230% at the temperature of 960℃ and the strain rate of 1×10-4 s-1. Effect of the bonding pressure, bonding temperature and bonding time to determine the microstructure and mechanical properties of diffusion bonding joints was investigated, and the optimum bonding parameters are (960℃, 10 MPa, 2 h). Through the finite element simulation, it could be found that the SPF/DB process of hollow four-layer structure is feasible. The hollow four-layer structure of Ti-22Al-27Nb alloy is manufactured, showing that the thickness distribution of the bonding area is uniform.
| Translated title of the contribution | Superplastic forming/diffusion bonding of Ti-22Al-27Nb alloy hollow four-layer structure |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 103-111 |
| Number of pages | 9 |
| Journal | Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals |
| Volume | 30 |
| Issue number | 1 |
| DOIs | |
| State | Published - 1 Jan 2020 |
Fingerprint
Dive into the research topics of 'Superplastic forming/diffusion bonding of Ti-22Al-27Nb alloy hollow four-layer structure'. Together they form a unique fingerprint.Cite this
- APA
- Author
- BIBTEX
- Harvard
- Standard
- RIS
- Vancouver