The Oxidation of Co-10Cr Alloys in 1 Atm of Pure O2 at 700 and 800οC

Article Preview

Abstract:

The oxidation of binary Co-10Cr alloys in 1 atm of pure O2 at 700 and 800°C was investigated. It indicated that the oxidation followed approximately the parabolic rate law (n=2). The parabolic rate constants as functions of temperature were 2.03×10-11, 7.05×10-10 g2cm-4s-1, respectively. The scales formed on Co-10Cr alloys were double-layered. The outer layer composed of large columnar CoO grains was relatively compact, while the inner CoO layer was porous, fine-grained and doped by cobaltous oxide CoO and spinel CoCr2O4.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 284-286)

Pages:

1546-1549

Citation:

Online since:

July 2011

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2011 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] J. Sato, T. Omori, K. Oikawa, I. Ohnuma, R. Kainuma and K. Ishida: Science. Vol. 312 (2006), p.90.

DOI: 10.1126/science.1121738

Google Scholar

[2] J. Qiu, W. Q. Yu and F.Q. Zhang: J. Mater. Sci. Vol. 46 (2011), p.1359.

Google Scholar

[3] S. Viennot, F. Dalard, G. Malquarti and B. Grosgogeat: J Prosthet Dent Vol. 96 (2006), p.100

Google Scholar

[4] G.W. Goward: Surf. Coat. Technol. Vol. 108-109 (1998), p.73

Google Scholar

[5] J. W. Lee, Y.C. Kuo: Surf. Coat. Technol. Vol. 200 (2005), p.1225

Google Scholar

[6] K. Zhang, Q.M. Wang, C. Sun and F.H. Wang: Corros. Sci. Vol. 50 (2008), p.1707

Google Scholar

[7] J.H. Xiang, Y. Niu and F. Gesmundo: Corros. Sci. Vol. 47 (2005), p.1493

Google Scholar

[8] G.N. Irving, J. Stringer and D.P. Whittle: Oxid. Met. Vol. 9 (1975), p.427

Google Scholar

[9] K. Przbylski, D. Szwagierczak: Oxid. Met. Vol. 17 (1982), p.267

Google Scholar

[10] F. Wang, H. Lou and W. Wu: Vacuum Vol. 43 (1992), p.749

Google Scholar

[11] I.G. Wright, G.C. Wood: Oxid. Met. Vol. 11 (1977), p.163

Google Scholar