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The effects of P implantation on passivity of Fe—Cr alloys in acidic electrolytes

Published online by Cambridge University Press:  29 June 2016

N. R. Sorensen ,
R. B. Diegle  and
S. T. Picraux
N. R. Sorensen
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
R. B. Diegle
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
S. T. Picraux
Affiliation:
Sandia National Laboratories, Albuquerque, New Mexico 87185
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Abstract

The passivation behavior of the P-implanted alloys in a Cl-containing electrolyte as a function of Cr concentration and P implantation has been investigated. At low Cr concentrations (6% Cr), P implantation sufficient to form an amorphous layer degrades the passive behavior of the base alloy and induces pitting, and at high-Cr levels (18%) P has little effect on passivation. However, at intermediate Cr levels (8%, 10%), P implantation significantly improves passivity, with the greatest improvement occurring at 10% Cr. When implanted to ∼25% P, the Fe–1OCr alloy exhibits a decrease in the passive current density by 4 orders of magnitude relative to the unimplanted alloy, and shows current decay characteristics that closely resemble those of the Fe–18Cr alloy.

Type
Articles
Information
Journal of Materials Research , Volume 1 , Issue 6 , December 1986 , pp. 752 - 757
Copyright
Copyright © Materials Research Society 1986

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References

1Hashimoto, K., Corrosion (Houston) 32 (4), 146 (1976).Google Scholar
2Sorensen, N. R., Hunkeler, F. J., and Latanision, R. M., Corrosion (Houston) 40 (11), 619 (1984).CrossRefGoogle Scholar
3Naka, M., Hashimoto, K., and Masumoto, T., Corrosion (Houston) 32 (4), 146 (1976).CrossRefGoogle Scholar
4Waseda, Y. and Aust, K. T., J. Mater. Sci. 16, 2337 (1981).CrossRefGoogle Scholar
5Naka, M., Hashimoto, K., and Masumoto, T., Sci. Rep. Ritu Ser. A 26 (4,5), 283 (1977).Google Scholar
6Clayton, C. R., Wang, Y-F., and Hubler, G. K., Fundamental Aspects of Corrosion Protection by Surface Modification, edited by McCafferty, E., Clayton, C. R., and Oudar, J. (Electrochemical Society, Pennington, NJ, 1984), p. 32.Google Scholar
7Clayton, C. R., Doss, K. G. K., Herman, H., Prasad, S., and Wang, Y-F., Ion Implantation Metallurgy, edited by Preece, C. M. (TMS of AIME, Warrendale, PA, 1979), p. 65.Google Scholar
8Naka, M., Hashimoto, K., and Masumoto, T., J. Non-Cryst. Solids 28, 403 (1978).CrossRefGoogle Scholar
9Naka, M., Hashimoto, K., and Masumoto, T., J. Non-Cryst. Solids 31, 355 (1979).CrossRefGoogle Scholar
10Latanision, R. M., Turn, J. C. Jr., and Compeau, C. R., in the Proceedings of the 3rd International Conference on Mechanical Behavior of Metals, Cambridge, England, 1979, Vol. 2, p. 475.CrossRefGoogle Scholar
11Baer, D. R. and Thomas, M. T., in the Proceedings of the Symposium on Corrosion, 1981, National Association of Corrosion Engineers, Houston, Texas, Preprint No. 247.Google Scholar
12Baer, D. R. and Thomas, M. T., J. Vac. Sci. Technol. 18, 722 (1981).CrossRefGoogle Scholar
13Diegle, R. B., Sorensen, N. R., and Nelson, G. C., Corrosion (Houston) (submitted for publication).Google Scholar
14Uhlig, H. H., Passivity of Metals, edited by Frankenthal, and Kruger, (Electrochemical Society, Princeton, NJ, 1978).Google Scholar
15Diegle, R. B., Clayton, C. R., Lu, Y., and Sorensen, N. R., J. Electro-chem. Soc. (submitted for publication).Google Scholar
16Diegle, R. B., Sorensen, N. R., Tsuru, T., and Latanision, R. M., Treatise on Materials Science and Technology, edited by Scully, J. C. (Academic, New York, 1983), Vol. 23.Google Scholar
17Picraux, S. T., Annu. Rev. Mater. Sci. 14, 335 (1984).CrossRefGoogle Scholar
18Hubler, G. K., Trzaskoma, P., McCafferty, E., and Singer, I. L., Ion Implantation Into Metals, edited by Ashworth, V. (Pergamon, New York, 1982), p. 24.CrossRefGoogle Scholar
19McCafferrty, E., Moore, P. G., Ayers, J. D., and Hubler, G. K., Corrosion of Metals Processed by Directed Energy Beams, edited by Clayton, C. R. (AIME, Warrendale, PA, 1981).Google Scholar
20Sorensen, N. R. and Picraux, S. T., Corrosion (Houston) 40 (10), 550 (1984).CrossRefGoogle Scholar
21Sorensen, N. R., Diegle, R. B., and Picraux, S. T., Corrosion (Houston) (submitted for publication).Google Scholar