| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Hume-Rothery Symposium on Alloy Microstructure Science and Engineering
|
| Presentation Title |
Unlocking the Versatility of Additive Manufacturing: Alloy Development and Materials Discovery for Resource-constrained Environments Based on Commercial Feedstock Materials |
| Author(s) |
Wei Xiong |
| On-Site Speaker (Planned) |
Wei Xiong |
| Abstract Scope |
Additive manufacturing (AM) revolutionizes alloy design and prototyping, yet limited feedstock choices hinder its potential. We propose an innovative approach that combines directed energy deposition as a high-throughput technique with CALPHAD-based ICME modeling for accelerated alloy development and materials discovery based on commercially available alloys in resource-constrained environments. Two case studies are presented. Firstly, by blending stainless steel 316L and Inconel 718 powders, we successfully manufacture a fine-grained structure with high-temperature homogenization resistance and robust precipitation hardening, exhibiting mechanical performance on par with Inconel 718. Secondly, through directed energy deposition of HSLA steel with 316L, we identify a distinct low-Mn TRIP/TWIP steel. Functionally graded alloy printing with in-situ powder mixing enables the effective detection of intriguing phase transformations in 10 wt.% steps. This methodology has broad applicability unlocking the versatility of AM due to limited choices of feedstock materials. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Phase Transformations, ICME |