Abstract
Laser cladding techniques of additive manufacturing has been globally embraced in the most efficient means of maintenance of steel rail. Nano-composite of titanium has been used as covering layer. The processing parameters of the laser power was varied between 1.0 kW and 2.0 kW while the scanning speed, powder and gas flow rate were kept at constant. Design expert 11 software environment was used to analyze the results derived with a full factorial experiment design guide. The microhardness profiling was performed at a load of 500 g and at a dwelling time of 15 s with the microhardness indenter 20 μm distance was maintained between indentations. An almost uniform weight of Titanium powder was cladded at different variation of processing parameters. A predictive microhardness equation was generated and termss runs intercept of an orthogonal shape. The model terms were found to be significant with logical relationships. It was found that the microhardness increases as the laser power increased.
| Original language | English |
|---|---|
| Article number | 042080 |
| Journal | Journal of Physics: Conference Series |
| Volume | 1378 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 18 Dec 2019 |
| Event | 3rd International Conference on Engineering for Sustainable World, ICESW 2019 - Ota, Nigeria Duration: 3 Jul 2019 → 8 Jul 2019 |
Keywords
- factorial experiment
- laser cladding
- microhardness
- nano-composite
- steel rail
ASJC Scopus subject areas
- General Physics and Astronomy
