| About this Abstract |
| Meeting |
MS&T24: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing: Microstructure, Defects, and Properties
|
| Presentation Title |
Investigation of Microstructure Changes of Wire Arc Additively Manufactured 316LSi
In the As-deposited and Forged Conditions Using Double Cone Samples |
| Author(s) |
Brett E. Ley, Vishnu Ramasamy, Glenn Daehn, Bradley Jared, Zhigang Xu, Kornel Ehmann, Jennifer L.W. Carter, John J Lewandowski |
| On-Site Speaker (Planned) |
Brett E. Ley |
| Abstract Scope |
The double cone sample geometry is a creative way to evaluate the effects of changes in strain on the microstructure across a gradient of strains within one sample with relevance to forging. In this work, double cones were machined from thick wall deposits of wire arc additively manufactured (WAAM) 316LSi containing δ-ferrite and compressed using a forging simulator at CWRU. The macro and microstructure of the as-deposited and forged material were evaluated using light optical microscopy and EBSD to quantify the effects of different strain levels on microstructure details. The forged double cone samples were also heat treated to determine the effects of the different strain levels within the double cone sample on the microstructure, including any recrystallization and dissolution of the (BCC) δ-ferrite phase. Preliminary work was conducted to evaluate how the magnetic behavior of the material changed pre and post heat treatment. |