Comparative study on high temperature oxidation behaviour of CoCrAlY coatings by various reinforcement composition profile analysis
نویسندگان
چکیده
In this article, high temperature oxidation behaviour of plasma sprayed carbides and oxides reinforced composite CoCrAlY coatings were investigated at 700°C. was with Al<sub>2</sub>O<sub>3</sub>+YSZ, CeO<sub>2</sub>, WC-Co, Cr<sub>3</sub>C<sub>2</sub>-NiCr individually to produce four different coatings. SEM, EDS XRD are used analyze the oxide scales formed during process on surface. From results it is found that, all these exhibited parabolic weight gain nature, indicating presence protective scale coating surface, whereas changes in total observed. CoCrAlY+Al<sub>2</sub>O<sub>3</sub>+YSZ higher resistance than other The distribution thermodynamically stable á- Al<sub>2</sub>O<sub>3</sub> shown slow-scale growth kinetics oxidation.
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ژورنال
عنوان ژورنال: Journal of Mines, Metals and Fuels
سال: 2022
ISSN: ['0022-2755']
DOI: https://doi.org/10.18311/jmmf/2021/30104