抄録
Residual stress distribution in thermally grown oxide (TGO) layer of thermal barrier coatings (TBCs) was measured by using Raman spectroscope. The residual stress in TGO near bond coat was higher than that near top coat, but the difference decreased with an increase in number of thermal cycles. Although the thickness of TGO and Al element amount in TGO increased with an increase in number of thermal cycles, the average residual stress in TGO decreased.
