Temperature Effect on Early Oxidation Behavior of NiCoCrAlY Coatings: Microstructure and Phase Transformation
نویسندگان
چکیده
Initial oxidation behavior of NiCoCrAlY coating prepared by arc-ion plating has been studied in air at 900, 1000 and 1100 °C. The results showed that phase transformation from transient θ-Al2O3 to α-Al2O3 was highly related the temperature time. oxide scale initial stage mainly composed 900 Instead, more amount emerged out with increasing temperature. elemental distribution after confirmed faster chromium diffusion played an important role speedy α-Al2O3. Y segregation scale/coating interface resulted less cavity formation hence improved adherence.
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ژورنال
عنوان ژورنال: Acta Metallurgica Sinica (english Letters)
سال: 2021
ISSN: ['2194-1289', '1006-7191']
DOI: https://doi.org/10.1007/s40195-021-01310-5