Oxidation mechanism of PVD TiAlCrYN coating observed by analytical TEM

LUO, Q., LEYENS, C., HOVSEPIAN, P. E., LEWIS, D. B., CONSTABLE, C. P. and MUNZ, W. D. (2001). Oxidation mechanism of PVD TiAlCrYN coating observed by analytical TEM. In: AINDOW, M. and KIELY, C. J., (eds.) Electron Microscopy and Analysis 2001. Institute of Physics Conference Series (168). Institute of Physics, 369-372.

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Multicomponent TiAlCrYN coating has been grown on a titanium alloy TIMETAL 834 by combined cathodic arc etching and unbalanced magnetron sputtering. The coated system outperforms gamma-TiAl alloy Ti-48Al-2Cr-Nb by exhibiting linear oxidation after exposure for 1000h in air at 750degreesC. Cross-sectional analytical transmission electron microscopy combined with X-ray diffractometry and Raman spectroscopy has given detailed investigation of the nitride-oxide transition. A double-layered nano-polycrystalline oxide scale has been determined to be alumina-like (Al, Ti)(2)O-3 on top and rutile-like (Ti, Al)O-2 in subsurface.

Item Type: Book Section
Additional Information: Conference of the Electron-Microscopy-and Analysis-Group SEP 05-07, 2001, DUNDEE, SCOTLAND
Research Institute, Centre or Group - Does NOT include content added after October 2018: Materials and Engineering Research Institute > Materials Analysis and Research Services
Materials and Engineering Research Institute > Advanced Coatings and Composites Research Centre > Nanotechnology Centre for PVD Research
Page Range: 369-372
Depositing User: Ann Betterton
Date Deposited: 16 Feb 2010 15:28
Last Modified: 18 Mar 2021 08:46
URI: https://shura.shu.ac.uk/id/eprint/1135

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