Evaluation of Shear Delamination Strength of Thermal Barrier Coating After Heating by Torsion Pin-Test Method
Evaluation of Shear Delamination Strength of Thermal Barrier Coating After Heating by Torsion Pin-Test Method
复制标题
扭销试验法评价热障涂层加热后剪切分层强度
DOI：
10.1016/j.engfracmech.2015.09.004
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发表时间：
2015
影响因子：
5.4
通讯作者：
Kenji Kaneko
中科院分区：
文献类型：
--
作者：
Kunio Hasegawa;Yinsheng Li;Ryousuke Serizawa;Masanori Kikkuchi;Avlery Lacroix;Kenji Kaneko
本文将作者提出的扭销试验方法应用于热障涂层剪切剥离强度的研究。最后，将有限元分析结果与实验结果进行比较，发现热障涂层在加热前后的分层准则可以用涂层与粘结层界面边缘处剪切奇异应力分布的应力强度因子和应力梯度来表示。
In this study, the torsion pin-test method that as originally presented by the author was applied to investigate the shearing delamination strength of thermal barrier coatings. By comparing the corresponding FEM analysis to the obtained experimental results, finally, the delamination criteria for the thermal barrier coating before and after heating were found to be expressed using the stress intensity factor and the stress gradient of the shear singular stress distributions around the interface edge between the top-coat and the bond coat.