About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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Environmental Degradation of Additively Manufactured Alloys
|
Presentation Title |
Effect of Surface Contouring on Corrosion of 6061-RAM2 Produced by Laser-based Powder Bed Fusion Additive Manufacturing |
Author(s) |
Hamidreza Torbati-Sarraf, Seyed Alireza Torbati Sarraf, Amir Poursaee |
On-Site Speaker (Planned) |
Seyed Alireza Torbati Sarraf |
Abstract Scope |
This study provides micro-electrochemical and microscopic evidences on influence of contouring in additive manufacturing (AM) process of 6061-RAM2 material on corrosion resistance. Scanning electrochemical microscope (SECM) was exploited to create a pictorial distribution of dissolution rate from a cross section of cylindrical tensile bars processed by AM. Micro-electrochemical results in 0.01M NaCl and post corrosion microscopic observation revealed that contouring reduces porosity and increases integrity of the surface. This yields to better corrosion performance. However, deep key holes formed due to second melting and solidification of material, induces significant localized corrosion at cross-section of the bar. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |