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首页> 外文期刊>Journal of Materials Engineering and Performance >Laser Treatment of HVOF Coating: Modeling and Measurement of Residual Stress in Coating
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Laser Treatment of HVOF Coating: Modeling and Measurement of Residual Stress in Coating

机译：HVOF涂层的激光处理：涂层中残余应力的建模和测量

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摘要

High-velocity oxy-fuel (HVOF) coating of diamalloy 1005 (similar to Inconel 625 alloy) onto the Ti-6Al-4V alloy is considered and laser-controlled melting of the coating is examined. The residual stress developed after the laser treatment process is modeled using the finite element method (FEM). The experiment is conducted to melt the coating using a laser beam. The residual stress measurement in the coating after the laser treatment process is realized using the XRD technique. The morphological and metallurgical changes in the coating are examined using scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). It is found that the residual stress reduces at the coating-base material interface and the residual stress predicted agrees with the XRD measurements. A compact and crack-free coating is resulted after the laser treatment process.
机译：考虑将透磁合金1005（类似于Inconel 625合金）的高速含氧燃料（HVOF）涂层涂覆到Ti-6Al-4V合金上，并检查涂层的激光控制熔化。使用有限元方法（FEM）对激光处理过程之后产生的残余应力进行建模。进行实验以使用激光束熔化涂层。使用XRD技术可以测量激光处理过程后涂层中的残余应力。使用扫描电子显微镜（SEM）和能量色散光谱（EDS）检查涂层的形态和冶金学变化。发现残余应力在涂料-基体材料界面处减小，并且预测的残余应力与XRD测量结果一致。经过激光处理后，可形成致密且无裂纹的涂层。

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