| About this Abstract |
| Meeting |
2022 TMS Annual Meeting & Exhibition
|
| Symposium
|
Environmental Degradation of Additively Manufactured Alloys
|
| Presentation Title |
Surface Finishing Effects on the Corrosion Properties of Additively Manufactured 316L Stainless Steel |
| Author(s) |
Courtney Clark, Timothy Gorey, Jamie Stull, Don Johnson, Randy Edwards, Enkeleda Dervishi-Whetham, Daniel Hooks |
| On-Site Speaker (Planned) |
Courtney Clark |
| Abstract Scope |
Metal additive manufacturing (AM) continues to rapidly develop with advancements in mechanical and structural characterization of materials. However, characterization of material surface finish and its impact on material performance remains deficient. Early studies have shown that the surface quality of metal AM parts is extremely different compared to traditionally manufactured parts, and it is thought that these differences result in deviations of the observed corrosion properties. Among these are as-printed surface roughness, stability of the passive film, chemical composition of surface oxides, and microstructure.
This study investigates the effects of varying surface finish on the corrosion properties of AM 316L stainless steel samples produced by direct metal laser sintering. To improve the surface finish and corrosion performance of the as-printed material, techniques including polishing, passivation, coatings, and heat treatment have been applied to 316L coupons. Fluctuations in corrosion performance due to build parameter modifications were also examined. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Surface Modification and Coatings, |