发明授权
- 专利标题： Local residual stress measurement and analysis for detection and prediction of damage in thermal barrier coatings
- 专利标题（中）： 局部残余应力测量和分析，用于检测和预测热障涂层的损伤
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申请号： US11973977申请日： 2007-10-04
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公开(公告)号： US07918141B1公开(公告)日： 2011-04-05
- 发明人: Shamachary Sathish , Sonia A. Martinez
- 申请人： Shamachary Sathish , Sonia A. Martinez
- 申请人地址： US DC Washington
- 专利权人： The United States of America as represented by the Secretary of the Air Force
- 当前专利权人： The United States of America as represented by the Secretary of the Air Force
- 当前专利权人地址： US DC Washington
- 代理机构： AFMCLO/JAZ
- 代理商 James P. Calve
- 主分类号： G01L5/00
- IPC分类号： G01L5/00
摘要：
The present invention provides a method for evaluating degradation of a thermal barrier coating disposed on a turbine blade. The method includes measuring a residual stress of an outer surface portion of a thermal barrier coating on a turbine blade, the turbine blade having been subjected to normal operating conditions and determining degradation of the thermal barrier coating based on a comparison between the residual stress measurement and a control stress measurement.
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