真实TGO界面形貌对热障涂层界面应力的影响

来源 :金属热处理 | 被引量 : 0次 | 上传用户：softdir

【摘要】

：

采用MSC.MARC有限元分析软件,以真实服役的某重型燃气轮机透平第一级动叶片表面热障涂层为研究对象,研究真实TGO界面形貌对热障涂层界面应力的影响.结果表明:在TC/TGO界面的TC层中,法向应力σ22分布中的拉应力位于波谷区域,压应力位于波峰区域,而在BC/TGO界面的BC层中,σ22应力分布与TC层相反;TC层与BC层的剪切应力σ12分布规律相同,均是波谷左侧的应力方向为负,波谷右侧的应力方向为正.TGO界面的波峰和波谷处的法向应力σ22值随TGO厚度的增大而增加;当TGO厚度不变时,BC/TGO界

【作者】

：

郭蕙敏李博张立群陶敬镭黄委裴修远肖俊峰南晴

【机构】

：

华能苏州热电有限责任公司,江苏苏州 215129;西安热工研究院有限公司,陕西西安 710054

【出处】

：

金属热处理

【发表日期】

：

2021年11期

【关键词】

：

热障涂层界面应力热生长氧化物有限元分析

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真实TGO界面形貌对热障涂层界面应力的影响

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