Projects per year
Abstract
The influence of ultra fine grained (UFG) and coarse grained (CG) microstructure of the titanium alloy Ti-6Al-4V on the strength of a diffusion bonded (DB) joint was studied using a laboratory DB fixture and a new shear test rig. The DB process was carried out at 725°C and 825°C during 2 and 4 hours in a vacuum furnace. Coarsening of grain structure resulting from different DB cycles was quantified. The chain pores were observed at 725°C for both microstructure conditions bonded during 2 hours. The increase of bonding time up to 4 hours leads to subsequent elimination of the pores. The UFG samples bonded at 725°C showed a higher level of the shear strength than CG samples for both bonding times. The CG material demonstrated the highest shear strength after 4 hours of DB bonding at 825°C. The increase of the creep deformation of UFG samples when compared to the CG condition was observed as a result of DB at of 725° C during 4 hours.
| Original language | English |
|---|---|
| Pages (from-to) | 251-258 |
| Number of pages | 8 |
| Journal | Materials Science and Engineering: A |
| Volume | 726 |
| Early online date | 17 Apr 2018 |
| DOIs | |
| Publication status | Published - 30 May 2018 |
Keywords
- microstructure
- titanium alloy
- diffusion bonding
- creep
- recrystallisation
Fingerprint Dive into the research topics of 'The influence of the microstructure morphology of two phase Ti-6Al-4V alloy on the mechanical properties of diffusion bonded joints'. Together they form a unique fingerprint.
Projects
- 1 Finished
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SAMULET Project 4 Task 4.3.1 and Task 4.3.2
Rosochowski, A., Ewing, H., Ion, W., Qin, Y., Blackwell, P., Gzyl, M., Qarni, M. J., Reshetov, A., Wood, P. & Yakushina, E.
EPSRC (Engineering and Physical Sciences Research Council)
1/02/10 → 31/07/14
Project: Research