| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing and Alloy Design: Bridging Fundamental Physical Metallurgy, Advanced Characterization Techniques, and Integrated Computational Materials Engineering for Advanced Materials
|
| Presentation Title |
Strength Enhancement of Al Alloy via Microstructure Design Strategy Using Laser Powder Bed Fusion |
| Author(s) |
Ankita Roy, Roopam Jain, Priyanka Agrawal, Ravi Haridas, Clara Mock, Brandon McWilliams, Kyu Cho, Rajiv Mishra |
| On-Site Speaker (Planned) |
Ankita Roy |
| Abstract Scope |
Introduction of variations in microstructural morphology via solidification kinetics and growth dynamics in additive manufacturing techniques have led to the inception of microstructure customization at various length scales. Novel Al-3Ni-1Ti-0.8Zr alloy had been meticulously designed to prioritize nucleation of equiaxed grains at the melt pool boundary with via Al3(Zr,Ti) precipitates and formation of columnar grains within the rest. Basic understanding of the synergistic influences of process parameters associated with laser-powder bed fusion warrants the introduction of heterogeneity at all hierarchical levels. The solidification pathway progressively introduces several nucleants, particles, segregations and heterogenous grains, thus increasing the number of deformation pathways. Processing parameters have been found to influence the relative volume fraction of equiaxed and column grains, extent of growth of equiaxed grains, morphology of the Al3(Zr,Ti) precipitates. Our research highlights the role played by process variables in tuning granular refinement and tailoring sub-granular intricate morphologies that shapes its mechanical attributes. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Characterization, Aluminum, Additive Manufacturing |