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Nanostructured Y2O3 plasma coating for high temperature oxidation protection
被引:0
作者:
Ghosh, D.
[1
]
Roy, H.
[1
]
Mitra, S. K.
[2
]
机构:
[1] CMERI, NDT & Met Grp, Durgapur 713209, India
[2] Natl Inst Technol, Met & Mat Engn Dept, Durgapur 713209, India
关键词:
nanostructure;
yttria (Y2O3);
coating;
Cr-Mo steel;
oxidation;
SOL-GEL COATINGS;
CR-1 MO STEEL;
CORROSION BEHAVIOR;
CEO2;
D O I:
10.1080/01694243.2015.1011366
中图分类号:
TQ [化学工业];
学科分类号:
0817 ;
摘要:
This paper investigates the effect of nano-size and micron-size Y2O3 powder-coated specimen on high-temperature oxidation resistance of low-alloy Cr-Mo steel (2.25 Cr-1 Mo steel). Both are powder coated by plasma spray coating method. The oxidation rate and reaction kinetics are studied and the post-corroded scales are characterized in Field Emission Scanning Electron Microscope and X-ray Diffraction. The results clearly indicate that nanosize Y2O3-coated (nanostructured) specimen improves the high-temperature oxidation resistance in comparison to the micron-size Y2O3-coated specimen. The detail mechanism of the oxidation of both the coated specimen is discussed in detail in this paper.
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页码:954 / 964
页数:11
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