| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Composition–Processing–Microstructure-Property Relationships of Titanium Alloys
|
| Presentation Title |
Effects of Temperature on the Deformation Behavior and Microstructural Evolution during the Hot Compression Test of Ti-6Al-2V-1Fe-1Cr Alloy |
| Author(s) |
Arjun Mahato, Vivek Kumar Chandravanshi, Shibayan Roy |
| On-Site Speaker (Planned) |
Arjun Mahato |
| Abstract Scope |
Titanium alloys are widely used as structural materials in automotive, aerospace, and medical industries due to their excellent high-temperature specific strength and corrosion resistance. In the present study, a new two-phase (α+β) Ti alloy Ti-6Al-2V-1Fe-1Cr (Ti-6211) was investigated. The microstructural studies of the as-cast alloy reveal the presence of basket weave structure with finer β grain size (~572 ± 240 µm) and higher β volume fraction (~16%). The as-cast alloy, with a β-transus temperature estimated at 970 ± 5°C, underwent β-forging at 1050°C. Following this, isothermal hot compression tests were performed on both the as-cast and β-forged specimens across a range of temperatures (725oC to 925oC with an interval of 50oC) while maintaining a constant strain rate of 1s-1 and examined for the microstructural changes. Microstructure reveals the bending and kinking of α lamellae for near α test temperatures whereas at higher temperatures, fragmentation of α lamellae takes place. |