Residual Stress and Damage Evolution in TBCs by Optical Method
Residual Stress and Damage Evolution in TBCs by Optical Method
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DOI：
10.4028/www.scientific.net/kem.324-325.1047
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发表时间：
2006-11
期刊：
影响因子：
--
通讯作者：
F. Wang;Yong Zhang;Hong Wang
中科院分区：
文献类型：
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作者：
F. Wang;Yong Zhang;Hong Wang
近年来，红宝石荧光光谱已被证明是一个强大的技术，监测残余应力的演变在热障涂层（TBC）系统的热生长氧化膜。测得的残余应力又可用于监测涂层中损伤的演变。有效地利用这项技术进行真实的时间损伤监测需要识别的强度在测量的应力，可以用作指标的损伤演变。目前的工作重点是研究的演变过程中的残余应力在TBC系统在氧化。涂层采用大气等离子喷涂（APS），在不同的氧化时间下测量残余应力，以确定关键特征，从而作为热障涂层失效的指标。
In recently years, ruby fluorescence spectroscopy has been demonstrated as a powerful technique for monitoring residual stress evolution in the thermally grown oxide scale in thermal barrier coatings(TBC) systems. The measured residual stresses, in turn can be used to monitor evolution of damage in the coatings. Effective use of this technology for real time damage monitoring require the identification of strength in measured stresses that can be used as indicators of damage evolution.the present work focuses on studying the evolution of residual stresses in TBC systems during oxidation. The coating are atmospheric plasma sprayed (APS), the residual stress were measured at different oxidation time and to identify critical features so as to be used as indicators of failure in TBCs.