Abstract
In conjunction with bare metal single laser track validation experiments, a computational framework is proposed to accelerate the design and development of new additive manufacturing (AM) specific alloys. Specifically, Additive Manufacturing-Computational Fluid Dynamics (AM-CFD) and Calculation of Phase Diagram (CALPHAD), were combined to predict location-specific β→α phase transformation for a new Ti-Al-Fe-alloy. This modeling work was validated by rigorous spatially resolved synchrotron-based X-ray diffraction measurements. This framework reasonably predicts the melt pool and heat affected zone features in the experiment and reveals their significance in actual AM conditions. This framework can be applied for rapid and comprehensive evaluation of location-specific thermal history, phase, microstructure, and properties for new AM titanium alloy development.
| Original language | English (US) |
|---|---|
| Article number | 100934 |
| Journal | Materialia |
| Volume | 14 |
| DOIs | |
| State | Published - Dec 2020 |
Funding
Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357 . Fan Zhang would like to thank Dr. Uta Ruett of the Advanced Photon Source for her help with setting up microfocus X-ray diffraction. Use of the Advanced Photon Source, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the U.S. DOE under Contract No. DE-AC02-06CH11357. Fan Zhang would like to thank Dr. Uta Ruett of the Advanced Photon Source for her help with setting up microfocus X-ray diffraction.
Keywords
- Additive manufacturing
- CALPHAD
- Computational fluid dynamics
- Phase transformation prediction
- Titanium alloys
ASJC Scopus subject areas
- General Materials Science
