About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
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| Presentation Title |
In-Situ Exposure of Microstructure via Spot Melting in Electron Beam Powder Bed Fusion |
| Author(s) |
Dang Toan Truong, Haojun You, Mohsen Taheri Andani |
| On-Site Speaker (Planned) |
Dang Toan Truong |
| Abstract Scope |
By employing a high-absorption energy source, electron beam powder bed fusion (EB-PBF) has become one of the emerging additive manufacturing (AM) methods in recent years. The spot melting technique, derived from its none-inertia deflection speed, has been a unique feature that can only be found in EB-PBF. While this spot melting technique opens many unexplored regimes for microstructure control in AM-based metals, an in-situ metallographic method is revealed by this method. Here first demonstrated its capabilities to expose the microstructure of Ti-6Al-4V material concurrently while spot-melting a layer. This method is unique in its ability to reveal a metal’s microstructure without employing traditional metallographic methods such as grinding, and macro- or micro-polishing. Intensive texture, microstructural, and image analyses are conducted to demonstrate the relationship between this approach and the conventional method. The collected data serves as a valuable source for the prediction of texture and microstructure, paving the way for an accelerated metallurgical examination of materials produced by EB-PBF. |