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Influence of Processing Parameters on the Microhardness Property of Laser Cladded Titanium Powder
摘要： 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 (cid:2)(cid:3)(cid:4) (cid:5)(cid:6)stance 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.
关键词： microhardness,factorial experiment,steel rail,laser cladding,nano-composite
更新于2025-09-23 15:19:57
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Laser cladded Ti + TiB2 on Steel Rail Microstructural Effect
摘要： Rail transportation has been one of the most efficient and sustainable means of mobility with large economic value. The rail wheel flange steers on the rail track for motion with imparts of frictional force and rotational speed. High temperature is generated and prolific wear at high speed which is reduced by lubrication. Additive manufacturing techniques of laser cladding of steel rail surface were employed in this study with the ceramics of Titanium and Titanium boride powders at different mix ratio on steel rail surface. Different metallurgical characterization of cladded surface was carried out. The best hardness and microstructural view were noticed at 50:50 mix ratio of the cladded ceramics. The phase transformation of the varying mix ratio was also revealed.
关键词： Microstructure,Wheel flanges,Wear,Laser Cladding,Steel Rail
更新于2025-09-12 10:27:22