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In order to study the evolution laws of the temperature field, flow field, and macroscopic morphology of the molten pool during laser cladding process, this paper focuses on the changes in the morphology and flow field distribution of the molten pool temperature field caused by corresponding parameter changes during laser cladding process. First, a multi-physics field coupling model for laser cladding was established by combining light powder interaction, phase transition, heat transfer, and fluid dynamics, and the temperature and flow fields of the molten pool were analyzed. Then, the influen...

The advancements in materials science and engineering, combined with a deeper understanding of atomic structures, have laid the foundation for the emergence of advanced materials.

The continuous energy input can lead to heat accumulation in the multi-pass lap laser cladding, which results in a progressive increase in the dilution rate and deteriorates the quality of laser cladding. Precisely controlling the stability of the dilution in the multi-pass laser cladding is still challenging. In this study, we proposed a deep-learning driven method for precisely controlling the dilution rate in the multi-pass laser cladding. Initially, the relationship between the dilution rate and power energy is retracted via the experiment-based finite element simulation. Subsequently, the...

The effect of Y2O3 addition on the microstructure and properties of the laser cladded Al-Si alloy coating on the surface of AZ91D magnesium alloy was investigated in this study. The experimental results showed that the Al-Si + Y2O3 cladding layers contained α-Mg, Mg2Si, Al4MgY and a small amount of Al12Mg17 phases. The coarse dendrites, reticulated eutectic structures and massive phases in the coatings tended to be refined and gradually uniformly distributed with the increased amount of Y2O3. The introduction of Y2O3 into the cladding layer favored the improvement of microhardness and wear re...

DUBLIN--(BUSINESS WIRE)--Sep 9, 2022--