About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Tuning microstructural heterogeneity to progressively trigger different deformation mechanisms in AM processed Ti alloys |
| Author(s) |
Tirthesh Ingale, Deepak Pillai, Sudip Sarkar, Nachiket Keskar, Advika Chesetti, Narendra B. Dahotre, Rajarshi Banerjee |
| On-Site Speaker (Planned) |
Tirthesh Ingale |
| Abstract Scope |
It is challenging to achieve a good balance of high strength, strain hardening, and ductility in conventionally processed titanium alloys with a uniform microstructure. We present an in-situ design strategy to engineer alloys with spatially modulated concentrations using laser-powder bed fusion. By partially homogenizing the melts of two distinct compositions Ti-6Al-4V and pure Fe (a β phase stabilizer), we achieve micrometer-scale elemental concentration variations. This localized phase stability modulation results in a finely structured β + α′ dual-phase microstructure that can also provide transformation induced plasticity. Consequently, the material exhibits an impressive yield strength of ~ 1 GPa, a uniform elongation of about 13%, and exceptional work-hardening capacity exceeding 375 MPa. This methodology paves the way for the development of concentration-modulated heterogeneous alloys tailored for both structural and functional applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Titanium, Characterization |