Assessment of thermo-mechanical fatigue in a nickel-based single-crystal superalloy CMSX-4 accounting for temperature gradient effects
نویسندگان
چکیده
Turbine blades are working under complex thermal gradient mechanical loading conditions. In the present study, a nickel-based single-crystal superalloy CMSX-4 is experimentally and computationally investigated thermo-mechanical fatigue (TMF) (TGMF) conditions of in-phase out-of-phase thermal-mechanical angel. The life TGMF with without barrier coating was studied. It confirmed that lifetime affected by temperature significantly substantially differs from conventional isothermal high fatigue. Since models fail to characterize TGMF, modified model considers effects phase angle can describe reasonably.
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Modelling of Thermomechanical Fatigue Stress Relaxation in a Single-Crystal Nickel-Base Superalloy
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ژورنال
عنوان ژورنال: Materials Science and Engineering A-structural Materials Properties Microstructure and Processing
سال: 2021
ISSN: ['0921-5093', '1873-4936']
DOI: https://doi.org/10.1016/j.msea.2021.140918