About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing: Materials Design and Alloy Development VI – Closed-Loop Alloy Design
|
Presentation Title |
Experimental Evaluation of Pitting Corrosion Resistance of Nickel Silicide (NiSi12-wt.%) Laser Cladded Surfaces |
Author(s) |
Ibrahim Mohammad, Christopher Hulme, Geir Grasmo, Ragnhild Elizabeth Aune |
On-Site Speaker (Planned) |
Ibrahim Mohammad |
Abstract Scope |
Steel is commonly used in the construction of marine/offshore structures due to its well-known corrosion resistance. However, these structures are still prone to environmental degradation, particularly pitting corrosion in the case of highly corrosive marine environments. A solution to this vulnerability could be applying a surface layer of nickel silicide (NiSi) cladding on top of such components, as NiSi is known for its high corrosion resistance and exceptional hardness. In view of this, the present study has investigated the corrosion resistance of a NiSi12-wt.% cladding deposited onto S355 construction steel samples by the Laser Metal Deposition (LMD) technique using an accelerated ASTM G48 test. Even uncladded samples were exposed to the same test environments (6% FeCl3 solution at room/elevated temperatures) and used as reference material. All the exposed samples were characterized using LOM, SEM-EDS, and AFM, and their performance compared in view of the effectiveness of the NiSi12-wt.% cladding. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Powder Materials, Other |