About this Abstract |
Meeting |
MS&T24: Materials Science & Technology
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Symposium
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Additive Manufacturing of Metals: Microstructure, Properties and Alloy Development
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Presentation Title |
Microstructural and Mechanical Properties of Steel Alloys Produced through the Bound-Metal FFF Additive Manufacturing Process |
Author(s) |
Eric J. Faierson, Benjamin D. Nelson |
On-Site Speaker (Planned) |
Eric J. Faierson |
Abstract Scope |
Utilizing the Fused Filament Fabrication (FFF) additive manufacturing process with feedstock comprised of metal particles in a polymer binder is a relatively new technique for fabricating metal parts. It can provide cost advantages, and a wider material selection, when compared to other additive manufacturing techniques such as laser powder bed fusion. This study investigated several bound-metal filament feedstocks, including 4140 steel, 17-4 stainless steel, and 316L stainless steel. FFF process parameters were developed to facilitate fabrication of suitable specimens. After fabrication, debinding and sintering schedules were developed to optimize the consolidation of the samples. Processing-Microstructure-Mechanical property relationships were investigated in order to reduce defects and obtain the best mechanical properties. The ability to fabricate novel lattice structures using bound-metal FFF technology was also investigated. |