About this Abstract |
Meeting |
2021 Annual International Solid Freeform Fabrication Symposium (SFF Symp 2021)
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Symposium
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Poster Session
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Presentation Title |
Impact of Porosity Type on Microstructure and Mechanical Properties in Selectively Laser Melted IN718 Lattice Structures |
Author(s) |
Samarth Ramachandra, Bharath Bhushan Ravichander, Behzad Farhang, Aditya Ganesh-Ram, Manjunath Hanumantha, Juan Marquez, Gavin Humphrey, Nahid Swails, Amirhesam Amerinatanzi |
On-Site Speaker (Planned) |
Bharath Bhushan Ravichander |
Abstract Scope |
Laser Powder Bed Fusion (LPBF), one of the most employed additive manufacturing techniques for metals, has opened new dimensions in realizing strong and weight reducing structures. In this study, Inconel 718 (IN718) unit cell designs, were fabricated through the LPBF technique and analyzed. Among the plethora of lattice structures in existence, BCC, BCC-Z, FCC, FCC-Z, Gyroid, Diamond and Schwarz structures have been selected to focus on. A relationship between the mechanical properties including yield strength, failure stress and strain, and hardness with each type of unit cell was established. Also, the effect of the possible defects on the hardness value was examined using microstructural analysis on samples. Scanning Electron Microscopy (SEM) analysis was also performed to examine the possible defects and its effect on the hardness of the as-built part. |
Proceedings Inclusion? |
Definite: Post-meeting proceedings |