| About this Abstract |
| Meeting |
2020 TMS Annual Meeting & Exhibition
|
| Symposium
|
Materials Processing Fundamentals
|
| Presentation Title |
Influence of Laser Intensity and Speed of Scanning on the Ultimate Tensile Strength and Metallurgical Properties of Laser Cladded Ti-6Al-4V+Ni/Ti-6Al-4V Composite Coating |
| Author(s) |
Olawale Samuel Fatoba, Esther Akinlabi, Stephen Akinlabi |
| On-Site Speaker (Planned) |
Esther Akinlabi |
| Abstract Scope |
The effects laser intensity and speed of laser scanning of Direct Laser Metal Deposition (DLMD) process had on the ultimate tensile strength, porosity generated, the hardness and the sizes of the grains in the Ti-6Al-4V alloy substrate cladded with reinforced Ti-6Al-4V/Ni coating were investigated. The temperature gradient and the rate of solidification of reinforcing the Ti-6Al-4V substrate with the Ti-6Al-4V/Ni power were also focused on in terms of how they were influenced by the laser intensity and the scanning speed used in the building process. An empirical design based on statistical analysis was employed which incorporated the Grey Relational Analysis (GRA) approach devised by Taguchi. The experiments produced results which revealed that the hardness of the clad was dependant highly on the laser scanning speed. Microstructural analysis on the substrate showed that the grain sizes were dominated by the laser processing intensity. |
| Proceedings Inclusion? |
Planned: |