| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Additive Manufacturing: Processing Effects on Microstructure and Material Performance
|
| Presentation Title |
Towards an Integrated Experimental and Computational Framework for Large-scale Metal Additive Manufacturing |
| Author(s) |
Xiaohua Hu, Andrzej Nycz, Yousub Lee, Benjamin Shassere, Srdjan Simunovic, Mark Noakes, Yang Ren, Xin Sun |
| On-Site Speaker (Planned) |
Xiaohua Hu |
| Abstract Scope |
Using the Metal Big Area Additive Manufacturing (MBAAM) system, a thin steel wall was manufactured from a low carbon steel wire. The wall was then characterized comprehensively by high-throughput high-energy X-ray diffraction (HEXRD), electron backscatter diffraction (EBSD), and in-situ HEXRD tensile tests. With the predicted temperature histories from the finite element-based additive manufacturing process simulations, the correlations between processing parameters, microstructure, and properties were established. The correlation between the final microstructure with the predicted temperature history is well explained with the material's continuous cooling transformation (CCT) diagram calculated based on the composition of the low carbon steel wire. The measured mechanical strength is then related to the microstructural feature size (grain or lath size) observed in those locations. A good correlation is found between the mechanical properties, microstructure features and the temperature history at various locations of the printed wall. |
| Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |