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Characterization and Oxidation Behavior of a Sputtered Nanocomposite Ni plus CrAlYSiHfN Coating
P.; Zhu Ren, S. L.; Wang, F. H.
2015
Source PublicationCorrosion
ISSN0010-9312
Volume71Issue:4Pages:523-535
AbstractA dense nanocomposite coating of Ni+CrAlYSiHfN was prepared on superalloy K417G by reactive magnetron sputtering. The coating was mainly composed of nanocrystalline gamma-Ni, hcp-AlN, Cr2N, and CrN. Isothermal oxidations were performed at 900 degrees C and 1,000 degrees C in static air for 200 h. The nanocomposite coating exhibited good oxidation resistance in both temperatures in contrast to the substrate. Decomposition of Cr2N and CrN in the coating, formation of (Ti, V) N in the substrate, and uphill diffusion of Al from the substrate to the coating were observed. The thermally grown oxide (TGO) formation mechanism and the microstructure evolution of the coating are discussed.
description.department[ren, pan ; zhu, shenglong ; wang, fuhui] chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china. ; ren, p (reprint author), chinese acad sci, state key lab corros & protect, inst met res, shenyang 110016, peoples r china. ; pren11s@imr.ac.cn
KeywordCoatings Composites Oxidation X-ray Diffraction Ray Photoelectron-spectroscopy Thermal Barrier Coatings Cr-al Alloys High-temperature Cyclic Oxidation Resistance Films Implantation Expansion Corrosion
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Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/73902
Collection中国科学院金属研究所
Recommended Citation
GB/T 7714
P.,Zhu Ren, S. L.,Wang, F. H.. Characterization and Oxidation Behavior of a Sputtered Nanocomposite Ni plus CrAlYSiHfN Coating[J]. Corrosion,2015,71(4):523-535.
APA P.,Zhu Ren, S. L.,&Wang, F. H..(2015).Characterization and Oxidation Behavior of a Sputtered Nanocomposite Ni plus CrAlYSiHfN Coating.Corrosion,71(4),523-535.
MLA P.,et al."Characterization and Oxidation Behavior of a Sputtered Nanocomposite Ni plus CrAlYSiHfN Coating".Corrosion 71.4(2015):523-535.
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