About this Abstract |
Meeting |
MS&T21: Materials Science & Technology
|
Symposium
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Additive Manufacturing: Processing, Microstructure and Material Properties of Titanium-based Materials
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Presentation Title |
Effects of Process Parameters on Fracture and Fatigue of High Deposition Rate Laser Hot Wire Processed CP-Ti Grade 2 |
Author(s) |
Hannah Sims, John J Lewandowski |
On-Site Speaker (Planned) |
Hannah Sims |
Abstract Scope |
CP-Ti Grade 2 has been produced via a wire-based additively manufactured laser hot wire process using biomedical grade CP-Ti Grade 2 wire. Several iterations of builds have been deposited and analyzed in order to determine the optimum process parameter window. Metallography and large-scale electron backscatter diffraction were performed to document the grain structure development throughout the entire build. Hardness testing, fatigue crack growth testing, and fracture toughness testing were conducted on Charpy-sized samples excised from the as-deposited material in different orientations, followed by optical and scanning electron microscopy of fracture surfaces. The effects of build parameters, sample orientation, and resulting microstructure/defects on the fracture properties will be presented and compared conventionally processed CP-Ti Grade 2. |