About this Abstract |
Meeting |
MS&T22: 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 |
Influence of Substrate Geometry and Feedstock Morphology on the Mechanical and Metallurgical Properties of Direct Energy Deposition Stainless Steel 316L |
Author(s) |
Samantha Sorondo, Jakob D Hamilton, Iris V Rivero |
On-Site Speaker (Planned) |
Samantha Sorondo |
Abstract Scope |
This investigation focuses on the effect of substrate geometry and feedstock morphology on the mechanical and metallurgical properties of directed energy deposition (DED) multilayered stainless steel 316L. In remanufacturing, features to be repaired are often unchangeable; this constrains the factors that can be controlled: feedstock morphology and print parameters. Thus, understanding the interaction between feedstock morphology and substrate geometry is crucial in the decision of picking wire or powder as feedstock. For this purpose, these morphologies were compared by depositing them on substrates with varying widths and thicknesses. Statistical models to correlate microhardness, porosity, and dilution percentages were used to identify their interactions. Powder was seen to have higher dilution and microhardness for the thickest substrate while using wire showed less porosity than powder for all substrate geometries. These results are proposed in an effort to contribute to the guidelines for repairs with DED. |