| About this Abstract |
| Meeting |
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Symposium
|
13th International Conference on the Technology of Plasticity (ICTP 2021)
|
| Presentation Title |
Transformation of α→β during Hot Deformation in the Two-phase Region of Ti-6Al-2Zr-1Mo-1V Alloy |
| Author(s) |
Lei Chen, Qifei Zhang, Qun Li, Miao Jin, Shiyan Zhao, Baofeng Guo |
| On-Site Speaker (Planned) |
Lei Chen |
| Abstract Scope |
Isothermal compressive tests were performed on a Ti-6Al-2Zr-1Mo-1V alloy below the beta transus. The results showed that straining caused a decrease in the primary α phase, indicating that a strain-induced phase transformation of α→β occured, whereby an additional dynamic softening were shown. This transformation was sensitive to temperature and strain rate. The higher the temperature was, the more the primary α phase transformed. The extent of α→β increased as the strain rate decreased. The α phase even transformed to β phase completely so long as the deformation duration was enough. Besides deformation, the overall heat duration which included the reheating before deformation and the absolute duration during deformation, caused additional dissolution of primary α phase. In this work, a quantitative model for dissolution kinetics of the primary α phase was established considering the strain-induced phase transformation and the overall heat duration. |
| Proceedings Inclusion? |
Definite: At-meeting proceedings |