| About this Abstract |
| Meeting |
2021 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
An In-situ Deformation Micro-mechanisms Study of a Ti-Al-V-Fe (α+β) Alloy |
| Author(s) |
Shaolou Wei, Gaoming Zhu, Cem Tasan |
| On-Site Speaker (Planned) |
Shaolou Wei |
| Abstract Scope |
Two-phase titanium alloys witness a wide range of engineering applications, due to the broad spectrum of microstructures and mechanical properties that they can exhibit. Their underlying deformation micro-mechanisms still stimulate profuse scientific interest because: (1) the pronounced plastic anisotropy of the α phase; and (2) the morphology and distribution of the β-phase. In this presentation, we aim to clarify the deformation micro-mechanisms of a Ti-Al-V-Fe (α+β) alloy with strongly textured α-phase and granular-shaped β-phase. Through integrated in-situ microstructure-based strain mapping technique, crystallographic calculation, and elasto-visco-plastic self-consistent simulation, we aim to address the following three topics: (1) what is the predominant deformation module and how its activation and transfer lead to strain heterogeneity? (2) what role do α and β phases play in plastic strain accommodation and partitioning? (3) what is the micro-mechanical origin for damage nucleation? In addition, further inspirations for mechanically-driven microstructural design strategy will also be covered. |
| Proceedings Inclusion? |
Planned: |