| About this Abstract |
| Meeting |
MS&T23: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing Modeling, Simulation, and Machine Learning: Microstructure, Mechanics, and Process
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| Presentation Title |
Gas Atomization of Mg-Zn-Ca-Mn Alloy Powder for Additive Manufacturing |
| Author(s) |
Daehyun Cho, Avey Thomas, Agnieszka Chmielewska, David Dean, Alan A. Luo |
| On-Site Speaker (Planned) |
Daehyun Cho |
| Abstract Scope |
Personalized medical devices formed via additive manufacturing (AM) entirely of, or with components of, biodegradable magnesium alloys are under study as they may avoid the well-known problems of bone stress shielding or arterial re-stenosis. attracting attention as the next-generation metallic biomaterials. We have develop a protocol for the gas atomization of as cast Mg-1.2Zn-0.5Ca-0.5Mn alloy in the additive manufacturing process. The goal of this work is to produce highly flowable, spherical powders with diameter between 20-65 microns for Laser Powder Bed Fusion (LPBF). We are also testing the hypothesis that less spherical powders above 65 microns will be useful for Binder Jetting. To accomplish the production of AM powders from as cast Mg-1.2Zn-0.5Ca-0.5Mn materials, we used a compact Induction Atomizer IMCS-1700-MAS (MTI Corporation, Richmond, CA, USA). As we will present, the heat induction coil size and the nozzle aperture are critical factors affecting the yield of these powders. |