Multi-Track Overlapping by Laser-Treated and Its Effects on the Microstructural Behavior of Al-Fe Alloy Assessed by FEM
In this work, a numerical simulation by finite element method (FEM) and optimized multigrid technology was applied. In order to study the influence of multi-track overlapping on the microstructure processed by laser surface remelting (LSR) and so, the validation of the experimental and the numerical...
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| Formato: | Capítulo de libro |
| Lenguaje: | inglés |
| Publicado: |
IntechOpen
2023
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| Materias: | |
| Acceso en línea: | https://www.intechopen.com/chapters/82453 |
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| Sumario: | In this work, a numerical simulation by finite element method (FEM) and optimized multigrid technology was applied. In order to study the influence of multi-track overlapping on the microstructure processed by laser surface remelting (LSR) and so, the validation of the experimental and the numerical simulation results of the multi-track overlapping were accomplished, which was the goal. It was verified in this work, multi-track overlapping and thermal cycling allied to high-speed cooling of liquid metalinfluence the liquid flow, mechanism of heat transport, and microstructure evolution in the molten pool of laser-treated alloy, promoting so a nanostructure characteristic. Thus, FEM is capable of accurately simulating the multi-track overlapping of the workpiece LSR-treated. Results of the overlapping ratio, as well as, the depth where the phase transformation occurs from liquid to solid was very nearby, therefore, simulation and experimental results agree quite well. This type of laser-treated alloy has very special characteristics and it is of innovative character, then, in aerospace, aeronautical, and automobile industries can be applied. |
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| ISBN: | 978-1-80355-939-1 |
| DOI: | 10.5772/intechopen.104375 |