Air Plasma Sprayed Bond Coat Oxidation Behavior and its Resistance to Isothermal and Thermal Shock Loading
Publish Year: 1398
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJE-32-6_011
تاریخ نمایه سازی: 10 آذر 1398
Abstract:
An experimental investigation was conducted to find the effect of spraying method of coating of Thermal Barrier Coatings (TBCs) on their oxidation behaviour and resistance to various thermal loading. Isothermal and thermal shock tests were performed in order to study oxidation behaviour of air plasma sprayed Bond Coat (BC) and assess its effect on TBCs lifetime under the stated loadings. Specimens, after loading were investigated using Field Emission Scanning Electron Microscopy (FE-SEM). Results showed in spite of forming various oxide layers within the BC its oxidation in Bond Coat/Top Coat interface behave the same as samples coated by other methods and no failure was observed at substrate/BC interface or within the BC.
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Authors
E. Poursaeidi
Mechanical Engineering Department, Faculty of Engineering, University of Zanjan, Zanjan, Iran
K. Torkashvand
Mechanical Engineering Department, Faculty of Engineering, University of Zanjan, Zanjan, Iran
M. Mohammadi
Mechanical Engineering Department, Faculty of Engineering, University of Zanjan, Zanjan, Iran