Hostname: page-component-586b7cd67f-g8jcs Total loading time: 0 Render date: 2024-11-26T11:07:36.222Z Has data issue: false hasContentIssue false

Si diffusion coating on steels by SiH4/H2 treatment for high temperature oxidation protection

Published online by Cambridge University Press:  31 January 2011

A. L. Cabrera
Affiliation:
Air Products and Chemicals, Inc., Allentown, Pennsylvania 18195
J. F. Kirner
Affiliation:
Air Products and Chemicals, Inc., Allentown, Pennsylvania 18195
R. Pierantozzi
Affiliation:
Air Products and Chemicals, Inc., Allentown, Pennsylvania 18195
Get access

Abstract

The reaction of SiH4/H2 mixtures with iron and steels was studied at a total pressure of 1 atm and temperatures above 500 °C. When the amount of water vapor in the gas mixture is carefully controlled, a metal silicide diffusion coating forms at low temperatures (below 900°C). Composition and structure of the Si diffusion coatings were determined with Auger depth profiling and x-ray diffraction. Kinetics of the surface reaction between SiH4, and the metal substrate as well as the behavior of these films in severe environments at high temperatures were studied by a microgravimetric technique. Characterization of these Si coatings on iron, low carbon steel (1010), 9% Cr/1% Mo steel (alloy A182F9), and stainless steels (310) and their applications to reduce oxidation, nitriding, or coking at high temperatures or corrosion in mineral acids are described.

Type
Articles
Copyright
Copyright © Materials Research Society 1990

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1 Grünling, H. W. and Bauer, R., Thin Solid Films 95, 3 (1982).CrossRefGoogle Scholar
2 Saldanha, B. J., Ph.D. Thesis, U. of Delaware (1985).Google Scholar
3 Fontana, M. G. and Greene, N. D., Corrosion Engineering (McGraw-Hill, New York, 1978).Google Scholar
4 Metals Handbook, 8th ed., edited by Lyman, T. (ASM, Metals Park, OH, 1961), Vol. I.Google Scholar
5 Deposition Technologies for Films and Coatings, edited by Bunshah, R. F. (Noyes Publications, New Jersey, 1982).Google Scholar
6 Coatings and Surface Treatment for Corrosion and Wear Resistance, edited by Strafford, K. N., Datta, P. K., and Googan, C. G. (John Wiley and Sons, New York, 1984), Chap. 13, p. 180.Google Scholar
7 Mrowec, S. and Werber, T., Gas Corrosion of Metals, NTIS Report No. TT 76–54038, Chap. 16, 511 (1978).Google Scholar
8 Fitzer, F. and Schlichting, J., Proc. of the Conf. High Temp. Corrosion, San Diego, CA, 604 (1981).Google Scholar
9 Vapor Deposition, edited by Powell, C. F., Oxley, J. H., and Blocher, J. M. (John Wiley and Sons, New York, 1966).CrossRefGoogle Scholar
10 Audisio, S., Monnier, G., and Prost, M., C.R. Acad. Sc. Paris Series C. 271, 844 (1970).Google Scholar
11 Wahl, G. and Sahm, P., DE Patent 2745812-A (1977).Google Scholar
12 Itzhak, D., Tuler, F.R., and Schieber, M., Thin Solid Films 73, 379384 (1980).CrossRefGoogle Scholar
13 Wahl, G., Schmaderer, F., and Thiele, W., Thin Solid Films 94, 257268 (1982).CrossRefGoogle Scholar
14 Singheiser, L. and Wahl, G., Proc. of the Int. Cong, on Metallic Corrosion, Canada, 286 (1984).Google Scholar
15 Bosnischen Elektrizitats, A. G., Ger. Patent 302305 (1915).Google Scholar
16 von Boss, Richter and Kruppa, E., Fr. Patent 774656 (1932).Google Scholar
17 Abba, A., Galerie, A., and Caillet, M., Mater. Chem. 5, 147164 (1980).CrossRefGoogle Scholar
18 Rebuffat, F., Galerie, A., Caillet, M., and Besson, J., Mater. Chem. 7, 517536 (1982).CrossRefGoogle Scholar
19 Pons, M., Galerie, A., and Caillet, M., Mater. Chem. Phys. 8, 153161 (1983).CrossRefGoogle Scholar
20 Hill, M. P. and Mathews, J. F., GB Patent 2107360 (1985).Google Scholar
21 Cocks, A.T. and Surman, P. L., GB Patent 1530337 (1978).Google Scholar
22 Dubois, L.H. and Nuzzo, R.G., J. Vac. Sci. Technol A2(2), 441445 (1984).CrossRefGoogle Scholar
23 Cabrera, A. L., Kirner, J. F., Miller, R. A., and Pierantozzi, R., US Patent 4,714,632 (1987).Google Scholar
24 Cabrera, A. L., Spencer, N.D., Kozak, E., Davis, P.W., and Somorjai, G.A., Rev. Sci. Instrum. 53, 1888 (1982).CrossRefGoogle Scholar
25 Poate, J. M., Thin Films — Interdiffusion and Reactions, edited by Tu, K. N. and Mayer, J.W. (John Wiley and Sons, New York, 1978), Chap. 10, p. 359.Google Scholar
26 Cabrera, A. L., Sales, B. C., and Maple, M. B., Phys. Rev. B 25 (3), 16881696 (1982).CrossRefGoogle Scholar
27 Dean, S.W., Electrochemical Techniques for Corrosion, edited by Baboian, R., NACE, June 1978, p. 52.Google Scholar
28 Kirner, J. F., Anewalt, M. R., Karwacki, E. J., and Cabrera, A.L., Metall. Trans. A 19A, 3045 (1988).CrossRefGoogle Scholar
29 Kirk-Othmer Encyclopedia of Chemical Technology, 3rd ed. (John Wiley and Sons, New York, 1980), Vol. IX, p. 393.Google Scholar