2023
DOI: 10.3390/coatings13050862
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Oxidation Behaviors of the NiCrAlY Bond Coats in the Thermal Barrier Coatings under External Loads

Abstract: To understand the oxidation behaviors of the NiCrAlY bond coats in the thermal barrier coatings (TBCs) under external loads, uniaxial tensile and compressive experiments of the TBCs in air at 900 °C for 100 h were investigated. Then, the experimental results were explained by first-principles simulation. The results showed that the oxidation rate of the NiCrAlY bond coat was accelerated by external stresses. A 0.9 μm thickness, a thermally grown oxide (TGO) layer was found in the NiCrAlY bond coat without stre… Show more

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