| About this Abstract |
| Meeting |
2024 TMS Annual Meeting & Exhibition
|
| Symposium
|
Advances in Titanium Technology
|
| Presentation Title |
Electropolishing and Roughness Analysis of Additively Manufactured Ti64 With Ethylene Glycol and Sodium Chloride Solutions |
| Author(s) |
Timothy Duffy, Jamie Stull |
| On-Site Speaker (Planned) |
Timothy Duffy |
| Abstract Scope |
Poor surface finish negatively impacts the quality and functionality of additively manufactured (AM) metal parts, including Ti64 alloy. Electropolishing is a mature technology that has been demonstrated to reduce the surface roughness of complex AM geometries, though traditional polishing electrolytes for titanium have typically contained hydrogen fluoride and other hazardous strong acids. Recently, ethylene glycol/ sodium chloride solutions have been reported as effective and safe solutions for electropolishing AM Ti64. By varying the temperature, agitation of the polishing electrolyte, and the applied current (direct current (DC) and pulse), the mass transport properties of the process can be fine-tuned to improve its polishing efficiency. This study reports the effect of different electropolishing conditions on the surface finish of AM Ti64 at various length scales including smoothing, brightening, and pitting effects. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Additive Manufacturing, Surface Modification and Coatings, Titanium |