Effect of a NiAl coating on the oxidation resistance of a NiAl-TiC composite

Authors
Yang, SL Wang, FH Wu, WT Niu, Y
Citation
Sl. Yang et al., Effect of a NiAl coating on the oxidation resistance of a NiAl-TiC composite, OXID METAL, 56(1-2), 2001, pp. 33-49
Citations number
39
Categorie Soggetti
Metallurgy
Journal title
OXIDATION OF METALS
ISSN journal
0030770X → ACNP
Volume
56
Issue
1-2
Year of publication
2001
Pages
33 - 49
Database
ISI
SICI code
0030-770X(200108)56:1-2<33:EOANCO>2.0.ZU;2-R
Abstract
The effect of a microcrystalline NiAl coating prepared by magnetron sputter ing on the high-temperature oxidation resistance of a NiAl-TiC (20 vol.%) c omposite was investigated in ail at 1000 and 1100 degreesC. It was found th at the isothermal as well as the cyclic oxidation resistance of the NiAl-Ti C composite were greatly improved by the microcrystalline NiAl coating. The oxide scale formed on the NiAl-TiC composite was composed mainly of TiO2. On the contrary, the scales formed on NiAl-TiC coated with microcrystalline NiAl were only Al2O3.