| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Solid State Diffusion Bonding of Metals and Alloys
|
| Presentation Title |
Microstructure Evolution and Mechanical Properties of Diffusion Bonded Ti6Al4V Alloy Joints for Aerospace Applications |
| Author(s) |
Rajakumar S, Pragatheswaran T, Kavitha S, Balasubramanian V, Vijay Petley, Shweta Verma |
| On-Site Speaker (Planned) |
Rajakumar S |
| Abstract Scope |
Utilization of titanium alloys in the aero-engine industries is increased due their unique characteristics. Joining Ti alloys require more sophisticated technique like diffusion bonding process which is a solid state process and it is able to provide good quality joints without drastic modification in the microstructure of the material. In this research work, thin sheets of Ti alloy Ti6Al4V having a thickness of 2 mm are diffusion bonded with the aim of analyzing the role of transformation temperature during diffusion bonding and its effects on microstructure evolution and mechanical properties. The results showed that interdiffusion of elements increases with increase in bonding temperature. The growth of lamellar α and β phases increases with increase in bonding temperature. The diffusion bonds produced from a bonding temperature above α-β transformation temperature exhibits more equiaxed α and β rich coarser grain with high shear strength and hardness.
Keywords: Diffusion, Titanium, Tensile, Microstructure, Hardness |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |