光激发荧光压电光谱法测定热障涂层中TGO层的残余应力

[中文适用范围]： 本文件规定了一种测试方法，用于通过光激发荧光压电光谱法测定热障涂层（TBC）中氧化物中间层（TGO）的残余应力。该测试方法指定了TBC粘结层中含有Cr元素。此方法用于确定TBC系统中TGO层的残余应力，不受TBC制备方法的限制。特别是，通过电子束物理气相沉积（EB-PVD）制备的TBC系统具有更好的效果。本方法提供了从荧光光谱数据估计可靠残余应力和对结果进行不确定度评估的指导。 [外文原描述]： This document specifies a test method for the determination of the residual stress of the TGO layer in thermal barrier coating (TBC) by photoexcitation fluorescence piezoelectric spectroscopy. This test method specifies that there is a Cr element in the bond coat of the TBC. This test method to determine the residual stress in the TGO layer of the TBC system is not limited by the preparation method of the TBCs. Particularly, the TBC system prepared by electron beam-physical vapour deposition (EB-PVD) has a better effect. This method provides guidance on determining reliable estimates of residual stresses from fluorescence spectral data and estimating uncertainties in the results.