| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Nano and Micro Additive Manufacturing
|
| Presentation Title |
Nanoscratch Testing: A Tool for Evaluating the Bonding Strength of Laser Cladding Coatings |
| Author(s) |
Keivan Davami, Alireza Doroudi, Sadie Beck, Ali Beheshti |
| On-Site Speaker (Planned) |
Keivan Davami |
| Abstract Scope |
While fusion-based methods are widely used for joining different materials, their counterparts that benefit from solid-state joining are attracting attention as an alternative due to their lower density of defects, reduced cost, and desirable bonding strength. We recently introduced the high-velocity laser accelerated deposition (HVLAD) technique as a laser-based cladding method that offers clads with uniform adhesion between the coating and the substrate. This technique benefits from laser peening (LP) technology, which is widely used as a surface engineering method. In this research, various effective process parameters in this advanced cladding technique are studied, the microstructure of the clad and substrate, particularly at the interface, is investigated, and nanoscratch tests are employed for the qualification and quantification of the bonding strength of the coating-substrate interface. No signs of any phase or alloy composition changes were observed except at the interface, and the grain refinement was limited to that region. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Joining, Surface Modification and Coatings, Nanotechnology |