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2D thermal finite element analysis of laser cladding of 316L+WC Composite coatings

机译：316L + WC复合涂层的激光覆层的2D热有限元分析

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In this work, a 2D-thermal model of laser cladding (also called Directed Energy Deposition) of composite coating (316L stainless steel reinforced by hard WC carbide particles) was developed. The temperature field and its time evolution were computed by the Finite Element software Lagamine and then compared to experimental measurements. Indeed, in a related work, the effects of the high temperatures on the WC particles in contact with the molten metal and the resulting microstructure at the end of the fabrication were evaluated by means of different experimental techniques. Thus, correlations between simulated thermal histories and microscopic analysis as well as thermocouple records were established. The temperature distribution in the substrate allows the prediction of the depths of the melt pool as well as the thermal histories of the different parts of the clad. Such a model is of great interest and can be applied in situ-calculations to offer quick data about the influences of the process parameters on the properties of the built part.
机译：在这项工作中，开发了一种复合涂层的激光覆层（也称为定向能量沉积）的2D-热模型（由硬WC碳化物颗粒增强316L不锈钢）。温度场及其时间进化由有限元软件Lagamine计算，然后与实验测量进行比较。实际上，在相关的工作中，通过不同的实验技术评估在制造结束时与熔融金属接触的WC颗粒对与熔融金属接触的WC颗粒的影响。因此，建立了模拟热历史和微观分析之间的相关性以及热电偶记录。基材中的温度分布允许预测熔池的深度以及包层的不同部分的热历史。这种模型具有很大的兴趣，并且可以以原位计算应用，以便提供有关过程参数对内置部分的影响的快速数据。

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